Thematische Bibliographien / Bioaccumulatie

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  1. Zeitschriftenartikel
  2. Dissertationen
  3. Bücher
  4. Buchteile
  5. Konferenzberichte
  6. Berichte der Organisationen

Auswahl der wissenschaftlichen Literatur zum Thema „Bioaccumulatie“

Autor: Grafiati
Veröffentlicht am 4. Juni 2021
Zuletzt aktualisiert am 17. Februar 2022

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Zeitschriftenartikel zum Thema "Bioaccumulatie"

1

Toledo-Hernández, Erubiel, Amairani Santana-Flores, Alejandro Sánchez-Ayala, Yanet Romero-Ramírez, Santo Ángel Ortega-Acosta und Jeiry Toribio-Jiménez. „Aislamiento e identificación de bacterias tolerantes y bioacumuladoras de metales pesados, obtenidas de los jales mineros El Fraile, México“. REVISTA TERRA LATINOAMERICANA 38, Nr. 1 (31.01.2020): 67. http://dx.doi.org/10.28940/terra.v38i1.430.

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The mining activity has left mine tailings with high quantities of heavy metals and metalloids. Due their extreme toxicity, they represent a hostile environment for microbial colonization; however, there are metalotolerant bacteria in these mining wastes, and this is attributed to mechanisms of bioaccumulation and biotransformation of metals. The native bacteria from El Fraile mine tailings have developed adaptation mechanisms that allow them to persist in a toxic environment, thus, the objective of this study was to isolate and identify bacteria with the ability to tolerate, bioaccumulate or biotransform heavy metals. Our study was based on descriptive observations, we isolated 141 strains from water, leachate, soil, and rhizosphere and stems of plants from El Fraile mine tailings, Guerrero, Mexico. Bacterial tolerance was determined by the minimum inhibitory concentration in different metallic salts, the capacity of bioaccumulation of Ag, Pb, Cr, and Cd, and by the biotransformation of As (III) and Cr6+; in addition, representative bacteria were identified using 16S rRNA gene sequences. The results of the 141 strains analyzed showed ascending tolerance to Cd2+ 2 mM, Cu2+ 5 mM, Pb2+ 9 mM, Zn2+ 9 mM, Ag2+ 10 mM, As3+ 30 mM, and As5+ 45 mM. Only 9.24 and 39% of the strains bioaccumulated Zn2+, Pb2+ and Ag2+. In regard to biotransformation, 9% oxidized As3+ to As5+, and 7 and 24% reduced As5+ to As3+ and Cr6+ to Cr3+, respectively. The genera that prevailed were Chryseobacterium sp., Staphyloccoccus sp., Stenotrophomonas sp., Acinetobacter sp., Bacillus sp., Serratia sp., and Enterobacter sp. These results showed that in El Fraile mine tailings, there are bacterial strains capable of bioaccumulating and biotransforming heavy metals and metalloids; therefore, further studies must be conducted to know their potential in the processes of bioremediation of areas polluted with metals.
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Holder, Philippa J., Ainsley Jones, Charles R. Tyler und James E. Cresswell. „Fipronil pesticide as a suspect in historical mass mortalities of honey bees“. Proceedings of the National Academy of Sciences 115, Nr. 51 (03.12.2018): 13033–38. http://dx.doi.org/10.1073/pnas.1804934115.

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Mass mortalities of honey bees occurred in France in the 1990s coincident with the introduction of two agricultural insecticides, imidacloprid and fipronil. Imidacloprid, a neonicotinoid, was widely blamed, but the differential potency of imidacloprid and fipronil has been unclear because of uncertainty over their capacity to bioaccumulate during sustained exposure to trace dietary residues and, thereby, cause time-reinforced toxicity (TRT). We experimentally quantified the toxicity of fipronil and imidacloprid to honey bees and incorporated the observed mortality rates into a demographic simulation of a honey bee colony in an environmentally realistic scenario. Additionally, we evaluated two bioassays from new international guidance for agrochemical regulation, which aim to detect TRT. Finally, we used analytical chemistry (GC-MS) to test for bioaccumulation of fipronil. We found in demographic simulations that only fipronil produced mass mortality in honey bees. In the bioassays, only fipronil caused TRT. GC-MS analysis revealed that virtually all of the fipronil ingested by a honey bee in a single meal was present 6 d later, which suggests that bioaccumulation is the basis of TRT in sustained dietary exposures. We therefore postulate that fipronil, not imidacloprid, caused the mass mortalities of honey bees in France during the 1990s because it is lethal to honey bees in even trace doses due to its capacity to bioaccumulate and generate TRT. Our results provide evidence that recently proposed laboratory bioassays can discriminate harmful bioaccumulative substances and, thereby, address evident shortcomings in a regulatory system that had formerly approved fipronil for agricultural use.
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Umeo, Suzana Harue, Maria Graciela Iecher Faria, Simone Schenkel Scheid Vilande, Douglas Cardoso Dragunski, Juliana Silveira do Valle, Nelson Barros Colauto und Giani Andrea Linde. „Iron and zinc mycelial bioaccumulation in Agaricus subrufescens strains“. Semina: Ciências Agrárias 40, Nr. 6 (29.08.2019): 2513. http://dx.doi.org/10.5433/1679-0359.2019v40n6p2513.

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Agaricus subrufescens, a basidiomycete native to Brazil, is worldwide cultivated due to its medicinal properties. This fungus is capable of bioaccumulating metals in the mycelial biomass when cultured in the presence of them; however, this capacity is little explored for functional food production. This study aimed to evaluate the amount of iron or zinc bioaccumulated in the vegetative mycelium of sixteen strains of A. subrufescens. Mycelia were grown in malt extract agar added with 50 mg/L of iron or with 7.5 mg/L of zinc. The metal bioaccumulation in the mycelial biomass was strain-dependent. In general, metal can inhibit or stimulate the mycelial growth ranging from -81 to +78% for iron and from -86 to +100% for zinc. The highest bioaccumulated iron and zinc concentrations in the mycelial biomass was 2,595.65 mg/kg and 1,655.83 mg/kg, respectively and occurred in the U4-4 strain. The supplementation of mycelial biomass using iron or zinc is an alternative to develop food supplements, that can be used both in the human and animal diet and in the prevention of diseases.
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Mareri, B., E. Kitur und P. Obade. „Bioaccumulation of zinc, lead, cadmium in water hyacinth, hippo grass and papyrus reed as water quality indicator in River Kisat in Kisumu County, Kenya“. African Journal of Pure and Applied Sciences 2, Nr. 2 (30.06.2021): 100–107. http://dx.doi.org/10.33886/ajpas.v2i2.213.

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River Kisat in Kenya is increasingly being polluted serving as a sink for waste receiving effluent from sewerage, industrial waste and agricultural pesticide residues leading to heavy metal contamination. This has led to the contamination of the aquatic ecosystem and water used by communities for consumption and farming. Little information is available on the bio-indicative aspects of water quality using bioaccumulation factor by macrophytes. This study aimed at determining concentrations of Zn, Pb and Cd in water, (Eichhornia crassipes (water hyacinth), Vossia cuspidata (hippo grass), Cyperus papyrus (papyrus reed) and bioaccumulation factors (BAF) in River Kisat, Kisumu County. This was determined following laboratory standard procedures using Atomic Absorption Spectrophotometer (AAS). Results showed mean concentrations (mg/L) of Cd (Below detectable limit), Zn (0.2 -0.15) and Pb (0.03-0.03) in water. Mean values were within allowable WHO drinking water limits except for Pb which was above acceptable limits. Zn recorded highest accumulated levels in E. crassipes (72.43mg/L), C. papyrus (70.13mg/L) and V. cuspidate (71.03mg/L). E. crassipes was observed to bioaccumulate the highest concentration of the heavy metals with C. papyrus bioaccumulating the lowest (E. crassipes > V. cuspidata> C. papyrus). Pearson matrix correlation analysis showed positive significant correlations (r = 0.621; p = 0.027) between Zn and Pb in water and the macrophytes which reflected a common source of pollution and indication of accumulation. BAF recorded for all macrophytes ranged from 2.45 to 6.85, above value of 1, indicating significant bioaccumulation for Zn and Pb. The findings from this study showed higher concentrations of Zn and Pb in the macrophytes in comparison to the water in River Kisat with BAF values >1 indicating bioaccumulation which represented poor water quality. The study recommends local authorities employ monitoring processes with incorporation of BAF as a water quality indicator where low metal concentrations in water are recorded, introduce penalties for polluters and sensitize local inhabitants on detrimental health effects of heavy metal and avoid use of River Kisat water for agricultural activities.
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Talaber, Iva, Cornelis A. M. Van Gestel, Anita Jemec Kokalj, Gregor Marolt, Sara Novak, Primož Zidar und Damjana Drobne. „Comparative biokinetics of pristine and sulfidized Ag nanoparticles in two arthropod species exposed to different field soils“. Environmental Science: Nano 7, Nr. 9 (2020): 2735–46. http://dx.doi.org/10.1039/d0en00291g.

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Ag bioaccumulation upon exposure to pristine Ag NPs is of bigger concern in acidic sandy soils, but not in case of the environmentally relevant sulfidized Ag NPs, which do not bioaccumulate in P. scaber or F. candida.
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Reemtsma, T., und N. Klinkow. „A strategy for the assessment of hazardous substances in industrial effluents (IDA)“. Water Science and Technology 50, Nr. 5 (01.09.2004): 59–66. http://dx.doi.org/10.2166/wst.2004.0309.

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A strategy for the assessment of industrial wastewater discharges with regard to the major hazard parameters toxicity, persistence and bioaccumulation is presented. The modular design of the strategy named IDA (Industrial Discharge Assessment) allows us to successively determine the three hazard parameters. Starting with the parameter toxicity biological tests for acute and chronic as well as genotoxicity are performed. Next persistence in the aquatic environment is simulated by a biological degradation test. A method based on solid-phase extraction was developed to cover the parameter bioaccumulation by determination of the amount of potentially bioaccumulating substances. The strategy was applied to real wastewater samples to test its applicability. In one of the investigated discharges toxic and persistent but no potentially bioaccumulating substances were found to be present. The strategy IDA is generally applicable and provides reasonable results to allow for a deeper insight into the hazard potential of an effluent.
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Burtnyk, Michael D., Gordon Paterson, Kenneth G. Drouillard und G. Douglas Haffner. „Steady and non-steady state kinetics describe polychlorinated biphenyl bioaccumulation in natural populations of bluegill (Lepomis macrochirus) and cisco (Coregonus artedi)“. Canadian Journal of Fisheries and Aquatic Sciences 66, Nr. 12 (Dezember 2009): 2189–98. http://dx.doi.org/10.1139/f09-150.

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This study investigated polychlorinated biphenyl (PCB) bioaccumulation patterns across age classes of bluegill ( Lepomis macrochirus ) and cisco ( Coregonus artedi ) collected from Sharbot Lake, Ontario. For bluegill, lipid normalized concentrations of PCB congeners of log Kow < 6.8 did not demonstrate any significant increases across individuals 2–5 years of age. In similarly aged cisco, however, significant age-related increases in lipid normalized PCB concentrations were observed for the majority of these congeners. For PCBs of log Kow > 6.8, these congeners demonstrated significant and similar age-related fugacity increases in both species. These patterns indicated that the bioaccumulation of less hydrophobic PCB congeners in bluegill suggest quicker growth kinetics and demonstrate the potential of this species to achieve steady state within their lifetime. In contrast, PCB bioaccumulation patterns in cisco demonstrated that biomagnification and non-steady state kinetics better reflect the capacity of this species to bioaccumulate PCBs. These results demonstrated that for pollutants of log Kow < 6.8, growth dilution and age-specific metabolic rates are critical for understanding their bioaccumulation by freshwater fish. However, for increasingly hydrophobic pollutants, their bioaccumulation reflects the biology and ecology of these species in their respective warm- and cold-water habitats.
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Pilaquinga, Fernanda, Sofía Cárdenas, Doris Vela, Eliza Jara, Jeroni Morey, José Luis Gutiérrez-Coronado, Alexis Debut und María de las Nieves Piña. „Fertility and Iron Bioaccumulation in Drosophila melanogaster Fed with Magnetite Nanoparticles Using a Validated Method“. Molecules 26, Nr. 9 (10.05.2021): 2808. http://dx.doi.org/10.3390/molecules26092808.

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Research on nanomaterial exposure-related health risks is still quite limited; this includes standardizing methods for measuring metals in living organisms. Thus, this study validated an atomic absorption spectrophotometry method to determine fertility and bioaccumulated iron content in Drosophila melanogaster flies after feeding them magnetite nanoparticles (Fe3O4NPs) dosed in a culture medium (100, 250, 500, and 1000 mg kg−1). Some NPs were also coated with chitosan to compare iron assimilation. Considering both accuracy and precision, results showed the method was optimal for concentrations greater than 20 mg L−1. Recovery values were considered optimum within the 95–105% range. Regarding fertility, offspring for each coated and non-coated NPs concentration decreased in relation to the control group. Flies exposed to 100 mg L−1 of coated NPs presented the lowest fertility level and highest bioaccumulation factor. Despite an association between iron bioaccumulation and NPs concentration, the 500 mg L−1 dose of coated and non-coated NPs showed similar iron concentrations to those of the control group. Thus, Drosophila flies’ fertility decreased after NPs exposure, while iron bioaccumulation was related to NPs concentration and coating. We determined this method can overcome sample limitations and biological matrix-associated heterogeneity, thus allowing for bioaccumulated iron detection regardless of exposure to coated or non-coated magnetite NPs, meaning this protocol could be applicable with any type of iron NPs.
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Douketis, James, Deborah Cook, Nicole Zytaruks, Diane Heels-Ansdell und Mark Crowther. „Dalteparin Thromboprophylaxis in Critically Ill Patients with Severe Renal Insufficiency: The Direct Study.“ Blood 110, Nr. 11 (16.11.2007): 304. http://dx.doi.org/10.1182/blood.v110.11.304.304.

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Abstract Background: Critically ill patients with renal insufficiency are at high risk for deep vein thrombosis (DVT). Low-molecular-weight heparins (LMWHs) effectively prevent DVT but are avoided in patients with renal insufficiency because of potential bioaccumulation and potential bleeding risk. However, evidence is lacking that LMWHs bioaccumulate in such patients. Objectives: The objectives of DIRECT were, in critically ill patients with severe renal insufficiency, to determine if dalteparin prophylaxis leads to bioaccumulation and bleeding from excessive anticoagulation and to determine the pharmacodynamic profile of dalteparin. Methods: Multi-center, open-label, prospective cohort study of critically ill patients with a creatinine clearance <30 mL/min who receive dalteparin, 5000 IU once-daily, subcutaneously for up to 30 days. Dalteparin bioaccumulation in a patient was defined by a trough anti-Xa level >0.40 IU/mL, measured twice-weekly 20 hours after the prior dalteparin dose. The pharmacodynamic profile of dalteparin was assessed by anti-Xa levels measured at 0, 1, 2, 4, 8, 12, 20, and 24 hours after the prior dose on days 3, 10, and 17 of treatment. Results: We enrolled 156 patients with a mean (SD) creatinine clearance of 18.9 (6.5) mL/min; of these, 18 were excluded because they died or were discharged before testing (n = 3) or had prevalent DVT (n = 14) or pulmonary embolism (n = 1) within 48 hours of enrollment. Of 138 patients included, the median (inter-quartile range [IQR]) duration of dalteparin treatment was 7 days (4, 12). In 120 pa tients who had ≥1 trough anti-Xa measured (427 total), none had dalteparin bioaccumulation; the median (IQR) trough anti-Xa level was <0.1 IU/mL (<0.1, <0.1). In 138 patients who received ≥1 dose of dalteparin,10 patients (7.2%; 95% CI: 4.0, 12.8) had a major bleed, all with trough anti-Xa levels ≤0.18 IU/mL. The pharmacodynamic profile of dalteparin, shown in the Figure, was typical for drugs that do not bioaccumulate, with a typical peak and decline after 3, 10, and 17 days of treatment. Conclusions: In critically ill patients with severe renal insufficiency, thromboprophylaxis with dalteparin did not bioaccumulate. Dalteparin, 5000 IU once-daily, appears to be a reasonable option for thromboprophylaxis of critically ill patients with severe renal insufficiency. Figure Figure
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Akhter, Kulsoom, Tahseen Ghous, Zain Ul-Abdin, Saiqa Andleeb, Muhammad Naeem Ahmed und Basharat Hussain. „Chromium bioaccumulation potential of Bacillus cereus isolated from rhizospheres of Tagetes minuta L.“ Bangladesh Journal of Botany 49, Nr. 1 (31.03.2020): 47–54. http://dx.doi.org/10.3329/bjb.v49i1.49091.

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Two metal resistant Bacillus cereus strains (AVP12 and NC7401) isolated from metal polluted and nonpolluted rhizospheres of Tagetes minuta were examined for Cr(VI) bioaccumulation potential. It was found that the strains have potential to survive even at metal concentration of 300 mg/l. The per cent removal capacity of Cr(VI) by AVP12 and NC7401 strains was analyzed as a function of environmental factors including pH, incubation time and biosorbate concentration. The optimum pH was found to be 5 andwas selected for further studies. Both Langmuir and Freundlich isotherm models were found suitable for description of Cr(VI) bioaccumulation. The maximum Cr(VI) bioaccumulation capacity by Bacillus cereus AVP12 and Bacillus cereus NC7401 strains isolated from polluted rhizosphere was 181.0 and 107.5 mg/l, respectively while maximum Cr(VI) bioaccumulation capacity by Bacillus cereus AVP12 and Bacillus cereus NC7401 strains isolated from non-polluted rhizosphere was 92.59 and 62.11 mg/l, respectively. Both types of rhizobacterial strains, especially isolated from metal polluted rhizospheres could serve as economical and ecofriendly bioaccumulating agents for removal of Cr(VI).
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Dissertationen zum Thema "Bioaccumulatie"

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Yu, Shuo. „Bioaccumulation of Metals in Earthworms“. The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1259697144.

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Al-Ansari, Ahmed. „Bioaccumulation of 17α-Ethinylestradiol in Fish“. Thesis, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22684.

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The active synthetic constituent of oral contraceptives 17α- ethinylestradiol (EE2) and its natural steroidal estrogen analogues are being released into the aquatic environment mainly via wastewater treatment plants (WWTPs). Although steroidal estrogens have been frequently reported in very low concentrations in the environment, they have been placed at the top of the list of endocrine disrupting chemicals (EDCs) for their high estrogenic activity in non-target aquatic species like fish and frogs. Almost 30 years worth of intensive research has moved the problem of endocrine disruption in the aquatic environment from being a hypothesis to a well-known cause-and-effect story. However, the fate and effects of many pharmaceuticals, including EE2, remain poorly understood. Thus, the main objective of this thesis was to investigate EE2 bioaccumulation in fish by field and laboratory studies. An optimized sample preparation and analytical method protocol was achieved to detect EE2 in its biologically active form in whole fish tissue at trace levels (ng/g). Shorthead redhorse suckers (ShRHS) (Moxostoma macrolepidotum) collected in proximity to a WWTP in the St. Clair River have significantly accumulated EE2 with an average of 1.5 ng/g. EE2 bioaccumulation was limited to fish exhibiting intersex and with induced vitellogenin (VTG). EE2 was absent in fish from a reference site. Positive correlations between EE2 and lipid content as well as "15N supported the hypothesis of EE2 bioaccumulation in wild ShRHSs. A wider survey was carried out to explore patterns of EE2 bioaccumulation in the pelagic and benthic food-wed of the St. Clair IV River, Ontario. In the WWTP effluents and nearby surface waters, EE2 levels were extremely low and below our method detection limits. All of the seven sampled species from different trophic levels and the sediment samples collected from the impacted sites and the reference sites did not have any measurable EE2 concentrations. A laboratory controlled study where male goldfish (Carassius auratus) were exposed to EE2 via water versus food demonstrated that fish can rapidly accumulate EE2 by both routes of exposure. The uptake constant for water was 45 h-1 and the bioconcentration factor for EE2 in fish was 377. The fast uptake rate of EE2 via water coincided with a much slower elimination rate constant of 0.0786 h-1. The assimilation efficiency of 0.106 for EE2 by goldfish was determined by EE2 dietary exposure, which was used to predict EE2 accumulation under different exposure scenarios. The work presented here was the first demonstration of EE2 bioaccumulation in wild fish and the first to model EE2 bioaccumulation from water and dietary exposure in laboratory-exposed fish.
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HEGE, SYLVIA. „Bioaccumulation de metaux chez des champignons macromycetes“. Strasbourg 1, 1989. http://www.theses.fr/1989STR15019.

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Kuhn, Sabine Plocher. „Bioaccumulation of metals using immobilized Zoogloea ramigera /“. The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu148759497065045.

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Strady, Emilie. „Mécanismes biogéochimiques de la contamination des huîtres Crassostrea gigas en Cadmium en baie de Marennes Oléron“. Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14060/document.

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La baie de Marennes Oléron, premier site ostréicole français, est influencée par la pollution polymétallique historique de l’estuaire de la Gironde avec des concentrations en cadmium dans les huîtres proches de la limite de consommation européenne (RNO 2006; 5 μg.g-1 ps, ECNo.466/2001). Ces travaux de recherche pluridisciplinaires ont pour objectif de caractériser le comportement des ETM en zone côtière et les mécanismes de contamination en ETM des huîtres, spécifiquement en Cd, dans la baie de Marennes Oléron. Pour cela, sept missions océanographiques en période contrastée ont permis de caractériser la spéciation des ETM à l’embouchure des estuaires de la Charente et de la Gironde ainsi qu’au Pertuis de Maumusson.Une étude spatio-temporelle complémentaire des sédiments de surface de la baie de Marennes Oléron a montré un enrichissement des sédiments de surface en Cd dans la zone sud baie,confirmant la connexion des eaux girondines et l’apport en Cd particulaire à la baie par le Pertuis de Maumusson. Cette zone sud a ainsi été choisie pour mener une transplantation d’huîtres pendant trois mois. L’hydrodynamique régionale, observée par imagerie satellite, a présenté unrôle important dans la distribution et la variation temporelle des concentrations en Cd dissous et particulaires minérales de la baie. La bioaccumulation en Cd des différents organes d’huîtres cultivées sur table a été plus importante que celle des huîtres cultivées directement sur le sol,suggérant le faible rôle de la diffusion de Cd par la remise en suspension des sédiments de surface et du microphytobenthos sur la bioaccumulation. De plus, le temps d’immersion étant relativement proche entre les deux conditions, nous suggérons que la voie trophique via le plankton pélagique participe à la contamination des huîtres en plus de la voie directe. Cette contribution de la voie trophique a été confirmée lors d’expérimentations en conditions contrôlées en laboratoire par le développement d’une méthode de traçage simultané des voies de contamination directe et trophique par ajouts d’isotopes stables de Cd, conduites pour des concentrations 10 fois supérieures à l’environnement et des concentrations réalistes observées en baie de Marennes Oléron (40 ng.l-1 et ~0.7 mg.kg-1)
The Marennes-Oléron Bay, hosting the largest oyster production in France, is influenced by thehistoric polymetallic pollution of the Gironde Estuary, with cadmium levels in oysters close tothe consumption limit level (5 μg.g-1 dw, EC No.466/2001). The aim of this pluridisciplinarywork was to characterize the behaviour of trace metals in the coastal zone and the mechanisms ofCd contamination in oysters in the Marennes Oléron Bay. Seven oceanographic cruises wereconducted during contrasting season to characterize trace metals behaviour and speciation in theGironde and Charente estuaries and the coastal zone. Then, a spatial and temporal study of tracemetals in the surface sediments of the Marennes-Oléron Bay showed punctual Cd-enrichedsediments in the southern part, reflecting the connexion with the Gironde waters and theparticulate Cd inputs via the Maumusson inlet. Thus, this area was chosen to study Cdbioaccumulation in oysters over a three months transplantation. The regional hydrodynamic,observed by satellite images, played an important role on Cd speciation and the temporalvariability of dissolved and particulate Cd concentrations. Cadmium bioaccumulation in organsof oysters reared on tables at 60 cm height was more important than in oysters reared near thesediment, suggesting the absence of Cd released during tidal suspension from sediment andmicrophytobenthos. Furthermore, as the immersion time was closed between the two rearingconditions, we suggested Cd bioaccumulation via the direct pathway and also via trophicpathway of contamination by pelagic plankton ingestion. This trophic pathway of Cdcontamination was validated during laboratory experiments using a simultaneous tracing of Cddirect and trophic pathways in oysters by stable isotope spikes at concencentrations 10-foldhigher than the Gironde Estuary and at realistic concentrations observed in the Marennes-OléronBay
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Farmer, Troy Mason DeVries Dennis R. Wright Russell A. „Mercury bioaccumulation patterns in two estuarine sportfish populations“. Auburn, Ala, 2008. http://hdl.handle.net/10415/1459.

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Rodrigues, Sandra. „Mercury bioaccumulation in the Egyptian mongoose (Herpestes ichneumon)“. Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10685.

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Mestrado em Química Analítica e Qualidade
O sacarrabos (Herpestes ichneumon) é um predador que desempenha um papel essencial na cadeia alimentar terrestre. A sua introdução e rápida proliferação pelo território português levaram à necessidade da sua caça como controlo de predadores. Estudos em espécies predadoras terrestres ainda são escassos, pelo que o presente trabalho representa uma mais-valia para um melhor entendimento da acumulação de contaminantes em níveis tróficos superiores. Existem vários contaminantes que representam uma constante preocupação para o ambiente; entre eles, o mercúrio tem tido uma atenção acrescida devido à sua persistência e toxicidade. Estudos no meio terrestre são importantes para um melhor entendimento da forma como se acumula neste meio, para a preservação da vida selvagem mas também para prevenir a exposição humana ao mercúrio. Este estudo teve como principal objectivo avaliar os padrões de acumulação de mercúrio nos tecidos do H. ichneumon, tendo em atenção factores como o género e a idade. H. ichneumon de localizações diferentes foram analisados de forma a avaliar a variação geográfica dos níveis de mercúrio em território Português. Músculo, fígado, pulmão, coração, baço, rins, sangue, cérebro, gordura e pêlo de 29 indivíduos provenientes de 14 localizações foram analisados (Évora, Soure, Ferreira do Zêzere, Castelo Branco, Mértola, Torres Novas, Tondela, Lousã, Coimbra, Montemor-o-Novo, Castro Daire, Olhão, Moura e Coruche). Além disso, de forma a estudar diferenças entre machos e fêmeas ao longo do ciclo de vida da espécie, 25 indivíduos provenientes de Serpa foram analisados. Os níveis de mercúrio nos diferentes órgãos variaram entre 0.01 e 12.7 μg g-1 peso seco, e seguiram geralmente a seguinte ordem, do menos para o mais contaminado: Gordura 0.74). Verificou-se que os níveis de mercúrio no sangue e no fígado estão fortemente correlacionados (r=0.998). O mercúrio orgânico presente no tecido muscular dos machos e das fêmeas foi analisado e a sua percentagem variou entre 77 e 98%. A correlação entre mercúrio orgânico e total nos machos foi de 1.000 e de 0.986 nas fêmeas. Nenhum dos níveis de mercúrio atingiu valores considerados letais ou tóxicos para predadores terrestres (20 a 100 μg g-1 peso seco).
The Egyptian mongoose (Herpestes ichneumon), a terrestrial predatory species, has an essential role in the terrestrial food chain. Their introduction in Portugal and rapid proliferation throughout Portuguese territory led to the necessity of their hunt as predator control measure. Studies in terrestrial predatory species are sparse; thereby, the present study is an asset for a better understanding of contaminants accumulation in higher trophic levels. Many contaminants are of environmental concern; mercury has had increased attention due to its persistence and toxicity. Studies have been mostly directed to aquatic wildlife due to the fact that fish consumption is considered to be the principal route of human exposure to mercury. However, terrestrial wildlife studies are also important for a better understanding of mercury accumulation, wildlife preservation and also for preventing human exposure to mercury. The main purpose of this study was to evaluate the different tissue accumulation in H. ichneumon, as well as differences between males and females, throughout the lifespan of the species. H. ichneumons from different locations were also analyzed in order to compare levels throughout Portuguese territory. Muscle, liver, lungs, heart, spleen, kidneys, blood, brain, fat and pelage were analyzed for 29 H. ichneumon from 14 locations (Évora, Soure, Ferreira do Zêzere, Castelo Branco, Mértola, Torres Novas, Tondela, Lousã, Coimbra, Montemor-o-Novo, Castro Daire, Olhão, Moura and Coruche). In order to study differences between ages, males and females, 25 individuals from Serpa were analyzed. Total mercury concentrations in H. ichneumon tissue samples ranged between 0.01 to 12.7 μg g-1 dw, and followed the order, from least to most contaminated: Fat 0.74), not visible in females. Moreover, correlations between organs showed that blood and liver were highly correlated (r=0.999). Organic mercury in muscle tissue of males and females was analyzed and its percentage ranged from 77% to 98%. Correlation between organic and total mercury in males was 1.000 and 0.995 for females. None of the mercury levels reached the lethal or toxic values established for terrestrial predators (20 to 100 μg g-1 ww).
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Rodrigues, Andreia do Carmo Martins. „Mercury toxicity and bioaccumulation: lab & field studies“. Master's thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/7457.

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Mestrado em Biologia Aplicada - Toxicologia e Ecotoxicologia
This work aims to evaluate the toxicity, bioaccumulation and biomagnification of mercury and it is divided into a laboratory and a field component. The laboratory component was divided into two parts and the field component was conducted into an estuarine environment in Ria de Aveiro, Portugal. In the laboratory we started by evaluating the toxicity of mercury for different aquatic organisms, using mercury concentrations that ranged between 0.5 μg/L to 2.4 mg/L. The chosen species used in this assay to evaluate mercury toxicity were the models: Pseudokirchneriella subcapitata, Daphnia magna and Chironomus riparius and the autochthonous species: Chlorella vulgaris, Lemna minor and Daphnia longispina. Mercury showed to be toxic to all testes species, with EC50 values ranging from 7.3 μg Hg/L (immobilization test of D. longispina) to 1.58 mg Hg/L (immobilization test of the larvae of C. riparius). The assay showed that even low doses of mercury can cause significant effects at the levels of primary producers, the base of the trophic chain. In the secondary laboratorial assay, an aquatic trophic chain was simulated using the primary producer P. subcapitata, the primary consumer D. magna and the secondary consumer Danio rerio. The trophic chain mercury contamination process was initiated exposing an algae culture to inorganic mercury (10 μg Hg/L), resulting in the accumulation of 70% of the available mercury in the primary producer. The contaminated algae were then used as food supply to the specie D. magna and subsequently D. magna specimens were used as food to the secondary consumer. After 14 days of exposure D. magna accumulates 0.14 μg Hg/g, whereas the final average concentration obtained in the muscle of the fish D. rerio after 21 days was 0.27 μg Hg/g (wet weight). All test species accumulate mercury along the time of exposure; the higher biomagnification occurred from the microalgae P. subcapitata to the mircrocrustacean D. magna, enhancing the crucial role of primary producers in the bioconcentration of mercury from the water column along the trophic chain. Fieldwork was conducted in the Ria de Aveiro, in two specific sites (Cais do Bico and Barra) that were already characterized regarding dissimilar environmental mercury contamination levels. Mercury levels were evaluated in the water column (total mercury), sediments (total and organic mercury) and in juvenile fish Liza aurata inhabiting the area (total and organic mercury). Cais do Bico site, located near the source of contamination showed the highest values of total mercury: 68 ng/L in the water column, 0.19 μg/g in the sediments and 0.07 μg/g in fish. The site distant from the source of mercury (Barra) presented a great amount of organic mercury in the sediments (0.02 μg/g) and a higher percentage of organic mercury in fish muscle (96%). The study indicates that, although mercury discharges have already stopped in the end of the last century, mercury stored in sediments continues to be ressuspended to the water column, becoming bioavailable to biota. The adoption of juvenile specimens provides information on short-term variations of mercury concentrations in the environment.
O objectivo deste trabalho é avaliar a toxicidade, a bioacumulação e a bioamplificação de mercúrio. O trabalho apresenta uma componente laboratorial e uma componente de campo. A componente laboratorial foi dividida em duas partes e a componente de campo foi realizada num ambiente estuarino, Ria de Aveiro, Portugal. Na componente laboratorial, começou por se avaliar a toxicidade do mercúrio para diferentes organismos aquáticos, testando-se concentrações de mercúrio entre 0,5 μg/L e 2,4 mg/L. As espécies teste escolhidas para avaliar a toxicidade do mercúrio incluíram espécies modelo: Pseudokirchneriella subcapitata, Daphnia magna e Chironomus riparius, e espécies autóctones: Chlorella vulgaris, Lemna minor e Daphnia longispina. O mercúrio revelou ser tóxico para todas as espécies, obtendo-se valores de EC50 que variaram de 7.3 μg Hg/L (teste de imobilização de D. longispina) a 1,58 mg Hg/L (teste de imobilização das larvas de C. riparius). Este ensaio demonstrou que pequenas doses de mercúrio provocam efeitos consideráveis ao nível dos produtores primários, base das cadeias tróficas. Num segundo procedimento experimental construiu-se uma cadeia trófica aquática, constituída pelo produtor primário P. subcapitata, pelo consumidor primário D. magna e o consumidor secundário Danio rerio. A contaminação iniciou-se pelo meio de cultura das algas com 10 μg Hg/L, do qual estas acumularam 70% do mercúrio disponível. Esta espécie foi usada como alimento para D. magna, que por sua vez, foi usada como alimento para o consumidor secundário Danio rerio. Após um período de 14 dias de teste D. magna acumulou 0,14 μg Hg/g. A concentração média obtida no músculo de D. rerio, após 21 dias de teste, foi de 0,27 μg Hg/g, peso fresco. Todos os organismos acumularam mercúrio ao longo do tempo de exposição, sendo que a maior bioamplificação de mercúrio ocorreu da microalga P. subcapitata para o microcrustáceo D. magna, reforçando assim o papel crucial dos produtores primários na bioconcentração de mercúrio da coluna de água para as cadeias tróficas. O trabalho de campo foi realizado na Ria de Aveiro, em dois sítios específicos, cuja caracterização em termos de contaminação por mercúrio já estava descrita. Estudou-se a carga de mercúrio total na coluna de água, bem como o mercúrio total e orgânico nos sedimentos e a sua transferência e acumulação para peixes juvenis residentes na área, Liza aurata. O Cais do Bico, local mais próximo da fonte de contaminação apresentou os maiores valores de mercúrio total: 68 ng/L na coluna de água, 0,19 μg/g nos sedimentos e 0,07 μg/g nos peixes. O local mais distante da fonte de mercúrio, Barra, apresentou uma maior quantidade de mercúrio orgânico nos sedimentos (0,02 μg/g) e uma percentagem de mercúrio orgânico no músculo dos peixes igualmente superior, de 96%. Esta monitorização comprovou que, embora as descargas industriais de mercúrio já tenham sido interrompidas no final do século passado, o mercúrio armazenado nos sedimentos continua a ser ressuspendido para a coluna de água, ficando biodisponível para a biota. A utilização de organismos juvenis fornece informações sobre as variações a curto prazo das concentrações de mercúrio no ambiente.
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Naigaga, Irene. „Bioaccumulation and histopathology of copper in Oreochromis mossambicus“. Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1005077.

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Cu is one of the most toxic elements that affect fish populations when the fish are exposed to concentrations exceeding their tolerance. To investigate the effects of elementary Cu on aspects of bioconcentration, histology and behaviour, O. mossambicus were exposed to 0 and 0.75 ± 0.20 mg/l of Cu for 96 hours (short-term study), and 0, 0.11 ± 0.02, 0.29 ± 0.02, and 0.47 ± 0.04 mg/l of Cu for 64 days (longterm study) under controlled conditions in the laboratory. For the long-term study fish were sampled for gills, liver, and kidney Cu accumulation analysis after 1, 32 and 64 days of exposure and after 1, 2, 4, 16, 32, and 64 days for gills, liver and spleen histology analysis. Cu accumulation was concentration-duration dependent with the highest accumulation capacity in the liver. A multifactor linear model was developed for the relationship between exposure dose, exposure duration and Cu accumulation in the organs with the liver model: Log L = 3.35 + 0.85W + 0.31T (r² = 0.892) giving a better fit than the gills: G = −35.09 + 10.58W + 17.58T (r² = 0.632). Where L = Cu accumulation values in the liver, G = Cu accumulation values in the gills (both in μg/g dry mass); W = exposure dose in water (mg/l); and T = exposure time (days). Using this model Cu accumulation in organs can be estimated when exposure concentration and duration is known. This model should be tested under different conditions to determine the potential of the model in monitoring Cu toxicity in the environment. Lesions were observed in the liver, gills and spleen in all Cu treatments at all exposure concentration and exposure durations. However, the incidence and the degree of alteration was related to the concentration of Cu and duration of exposure. The sequential appearance of lesions in the order of, hepatic vacuolar degeneration, fatty degeneration and necrosis indicated a gradual increase in liver damage with larger duration of exposure time and increasing Cu concentration. The initial lesions in the gills were manifested as hypertrophy and hyperplasia of the gill epithelium causing increase in the thickness of the secondary lamellae, mucous cell hypertrophy and proliferation, mucous hypersecretion, proliferation of eosinophilic granule cells and hyperplasia of interlamellar cells. With increase in exposure time, necrosis of the eosinophilic granule cells, lamellar oedema, epithelial desquamation and increase in severity of lamellar hyperplasia were observed. These lesions indicated an initial defence mechanism of the fish against Cu toxicity followed by advanced histological changes that were related to Cu concentration and duration of exposure. Changes in the spleen were haemosiderosis, increase in the white pulp and macrophage centres, reduction in the red pulp, and necrosis suggesting that fish exposed to environmentally relevant levels of Cu may be histopathologically altered leading to anaemia and immunosuppression. Regression analysis was used to quantify the relationship between the total activity of the fish, and duration of exposure. There was a gradual decline in fish activity related to Cu concentration and duration of exposure before introducing food into the tanks. There was a constant activity after introducing food in the tanks at the control and 0.11 ± 0.02 mg/l Cu exposure levels irrespective of exposure time. Analysis of covariance (ANCOVA) was used to test for the difference in slopes between treatments. There was no significant difference (p > 0.05) between slopes of the control and 0.11 ± 0.02 mg/l Cu, and between 0.29 ± 0.02 and 47 ± 0.04 mg/l Cu before and after introducing food in the tanks. The slopes of both the control and 0.11 ± 0.02 mg/l Cu were significantly different from those of 0.29 ± 0.02 and 0.47 ± 0.04 mg/l Cu (p < 0.05). There were significant differences in the mean opercular movements per minute between treatments (p < 0.05). There was hyperventilation at 0.11 ± 0.02 mg/l Cu i.e. 87 ± 18 opercular movements per minute (mean ± standard deviation) and hypoventilation at 0.29 ± 0.02 and 0.47 ± 0.04 mg/l Cu i.e. 37 ± 34 and 13 ± 6 opercular movements per minute compared to the control. Hypo- and hyperventilation were related to the lesser and greater gill damage, respectively. In conclusion Cu accumulation and effects on histology of the liver, gills and were related to the concentration of Cu in the water and duration of exposure showing a gradual increase in incidence and intensity with larger duration of exposure time and increasing Cu concentration. The fish were initially able to homeostatically regulate and detoxify Cu. However, as the exposure continued, the homeostatic mechanism appears to have failed to cope with the increasing metal burden causing advanced histological changes.
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Giansiracusa, Sara. „Bioaccumulation of legacy and emerging contaminants in tuna species“. Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18305/.

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Environmental contamination of legacy contaminants has been of great concern worldwide because of their persistence and toxicity to humans and marine species. Only in the last decade, the presence and accumulation of emerging contaminants, and, consequently, their adverse effects in marine biota have been considered. The present research was performed to compare the different distribution of legacy contaminants (Pesticides, PCBs and PAHs) and emerging contaminants (UV filters and Fragrances) in the liver and muscle tissues of three tuna species living in different locations and with different behaviour and feed habits: Sarda sarda, Katsuwonus pelamis from the Atlantic Ocean (Gulf of Càdiz) and Thunnus thynnus from the Strait of Gibraltar. The extraction and quantitative determination of these contaminants from liver and muscle samples have been carried out by Accelerate Solvent Extraction and GC-MS/MS techniques, respectively. From the statistical analysis, significant differences have been found for Fragrances, Pesticides, PCBs and PAHs both among the three tuna species and between the two tissues. Post-hoc analysis showed significant differences between the three tuna species and the tissues, revealing that K. pelamis species differs significantly from the other two species, both in liver and muscle, and that legacy contaminants are responsible for significant differences between and within species. We also explored the similarities between concentrations of PCBs and DDTs in liver and muscle tissue found in samples of T. thynnus and K. pelamis in this study, compared to concentrations of PCBs and DDTs found in specimens of tuna collected in different geographical areas. As a result of the continuous exposure of the marine top predators, such as tuna species, to variable concentrations of emerging and legacy contaminants, their concentration in the marine environment must be constantly monitored.
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Bücher zum Thema "Bioaccumulatie"

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(Netherlands), Rijksinstituut voor Integraal Zoetwaterbeheer en Afvalwaterbehandeling. Biologische monitoring zoete rijkswateren: Bioaccumulatie in aal en driehoeksmosselen : een evaluatie van 10 jaar monitoren (1992-2002). Lelystad]: Ministerie van Verkeer en Waterstaat, Directoraat-Generaal Rijkswaterstaat, RIZA, Rijksinstituut voor Integraal Zoetwaterbeheer en Afvalwaterbehandeling, 2003.

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Connell, D. W. Bioaccumulation of xenobiotic compounds. Boca Raton, Fla: CRC Press, 1990.

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3

Lipnick, Robert L., Joop L. M. Hermens, Kevin C. Jones und Derek C. G. Muir, Hrsg. Persistent, Bioaccumulative, and Toxic Chemicals I. Washington, DC: American Chemical Society, 2000. http://dx.doi.org/10.1021/bk-2001-0772.

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Lipnick, Robert L., Bo Jansson, Donald Mackay und Myrto Petreas, Hrsg. Persistent, Bioaccumulative, and Toxic Chemicals II. Washington, DC: American Chemical Society, 2000. http://dx.doi.org/10.1021/bk-2001-0773.

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inc, Tetra Tech. Bioaccumulation monitoring guidance: Final report. Bellevue, Wash: Tetra Tech, Inc., 1985.

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Beek, B., Hrsg. Bioaccumulation – New Aspects and Developments. Berlin/Heidelberg: Springer-Verlag, 2000. http://dx.doi.org/10.1007/10503050.

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Chojnacka, Katarzyna. Biosorption and bioaccumulation in practice. New York: Nova Science Publishers, 2009.

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Guthrie, Donald R. Bioaccumulation from Amax/Kitsault of tailings. Ottawa, Ont: Environment Canada, Environmental Protection Service, 1985.

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Hung, Hayley Hing Ning. The bioaccumulation of organic chemicals in vegetation. Ottawa: National Library of Canada, 1996.

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Emerson, Rose. Persistent bioaccumulative toxin-free purchasing resolution: An internship report. Bellingham, WA: Huxley College of the Environment, Western Washington University, 2007.

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Buchteile zum Thema "Bioaccumulatie"

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da Costa, Monica Ferreira, Helena do Amaral Kehrig und Isabel Maria Neto da Silva Moreira. „Bioaccumulation“. In Encyclopedia of Estuaries, 74–75. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-8801-4_132.

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Mance, Geoffrey. „Bioaccumulation“. In Pollution Threat of Heavy Metals in Aquatic Environments, 287–98. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3421-4_9.

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Newman, Michael C. „Factors Influencing Bioaccumulation“. In Fundamentals of Ecotoxicology, 127–55. Fifth edition. | Boca Raton : CRC Press, 2020.: CRC Press, 2019. http://dx.doi.org/10.1201/9781351133999-4.

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Weis, Judith S. „Bioaccumulation/Storage/Detoxification“. In Physiological, Developmental and Behavioral Effects of Marine Pollution, 355–92. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6949-6_10.

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Rodriguez, Pilar, und Trefor B. Reynoldson. „Bioaccumulation and Trophic Transfer“. In The Pollution Biology of Aquatic Oligochaetes, 159–99. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1718-3_5.

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Patil, Ganapati P., Sharad D. Gore und Charles Taillie*. „Composite Sampling and Bioaccumulation“. In Composite Sampling, 239–42. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-7628-4_14.

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Barron, Mace G., und Kent B. Woodburn. „Pesticide Bioaccumulation and Metabolism“. In Xenobiotics in Fish, 39–54. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4703-7_4.

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Bienfang, Paul K., Henry Trapido-Rosenthal und Edward A. Laws. „Bioaccumulation bioaccumulation /Biomagnifications marine ecosystem biomagnification in Food Chains food chain“. In Encyclopedia of Sustainability Science and Technology, 822–45. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_50.

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Sijm, D. T. H. M. „The 'B' in PBT: Bioaccumulation“. In ACS Symposium Series, 13–26. Washington, DC: American Chemical Society, 2000. http://dx.doi.org/10.1021/bk-2001-0772.ch002.

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Streit, Bruno. „Bioaccumulation of contaminants in fish“. In Fish Ecotoxicology, 353–87. Basel: Birkhäuser Basel, 1998. http://dx.doi.org/10.1007/978-3-0348-8853-0_12.

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Konferenzberichte zum Thema "Bioaccumulatie"

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Tarita, Anatolie, und Valeriu Brasoveanu. „Bioacumularea metalelor grele în lemnul speciilor de arbori din ecosistemul forestier „Padurea Hânceşti”“. In Impactul antropic asupra calitatii mediului. Institute of Ecology and Geography, Republic of Moldova, 2019. http://dx.doi.org/10.53380/9789975330800.11.

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The total content of heavy metals (As, Cd, Co, Cr, Cu, Fe, Ni, Pb, Zn) in the wood of different species of trees in the forest ecosystem "Forest Hânceşti" was determined. The contents of HM in different wood species (strong/soft) trees were different. Bioaccumulation Factor (BCF) of HM for different tree species differ greatly from species to species and ecosystem. Analyzed wood tree species have been bioaccumulated HM in the following order: Zn>Cu>Ni>Cd>Pb>Cr>Co>As. Mobility Factor (MF), evaluated in order to estimate accumulation of HM in the wood of the trees studied from atmospheric air through the leaf material, with the exception of Pb is >1, indicating polluted air as a major source of impairment of studded forestry species.
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Zheng, Jiang, und Yahui Gao. „A Novel Method to Bioaccumulate Calcium in Spirulina“. In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162222.

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Brankovic, Snezana, Radmila Glisic, Duško Brkovic, Gorica Đelic, Zoran Simic, Vera Rajicic, Ranko Saric und Milun Jovanovic. „SADRŽAJ METALA U ZEMLJIŠTU I ODABRANIM BILJKAMA NA JALOVIŠTU FLOTACIJE RUDNIK DOO „RUDNIK"“. In XXVI savetovanje o biotehnologiji sa međunarodnim učešćem. University of Kragujevac, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.501b.

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The aim of this study was to determine the concentration of some metals (Ca, Mg, Mn, Fe, Zn, Ni, Cr, Cd) in the soil and species of Tussilago farfara L. and Clematis vitalba L. on the tailings and flotation of the mine DOO "Rudnik". Concentrations in the soil were: Pb and Cu - higher than the maximum allowed, limit and remediation values; Cd, Cr and Ni - higher than the maximum allowed and limit values, and Zn higher than the limit values (according to the regulations of the Republic of Serbia). Better bioaccumulation of all tested metals was shown by T. farfara species, especially leaves for Zn. The results indicate the possible use of aboveground parts of both plant species in the revitalization of tailings by bioaccumulation of tested metals.
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Moigradean, Diana. „HEAVY METALS BIOACCUMULATION RATE IN TOMATO FRUIT“. In 14th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b52/s20.045.

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Zhang, Yanxu. „Bioaccumulation of Methylmercury in a Marine Plankton Ecosystem“. In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.3140.

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JOHNS, N., J. KURTZMAN, Z. SHTASEL-GOTTLIEB, S. RAUCH und D. I. WALLACE. „THE BIOACCUMULATION OF METHYLMERCURY IN AN AQUATIC ECOSYSTEM“. In BIOMAT 2010 - International Symposium on Mathematical and Computational Biology. WORLD SCIENTIFIC, 2011. http://dx.doi.org/10.1142/9789814343435_0017.

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Walker, Rachel A., und Chad R. Hammerschmidt. „MERCURY BIOACCUMULATION IN SPOTTED SALAMANDERS IN SOUTHWEST OHIO“. In Joint 52nd Northeastern Annual Section and 51st North-Central Annual GSA Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017ne-291035.

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Laughlin, R. „Bioaccumulation of Tributyltin: The Link Between Environment and Organism“. In OCEANS '86. IEEE, 1986. http://dx.doi.org/10.1109/oceans.1986.1160346.

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Dilek, Sophie, Siphokazi Kargbo, Jessica Morgan, Marc Anderson, Robert M. Newton und Robert B. Merritt. „BIOACCUMULATION OF MERCURY IN LARGEMOUTH BASS FROM NORTHWESTERN MISSOURI“. In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272327.

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10

Kucherenko, S. V. „XENOBIOTICS ATTACK! WHAT TO DO?“ In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. DSTU-PRINT, 2020. http://dx.doi.org/10.23947/interagro.2020.1.178-180.

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Xenobiotics - substances alien to the body - have become a major problem, since they negatively affect human health. They can directly affect, disrupting vital functions, and can form various metabolites in the body due to transformation. But the main danger of xenobiotics is their bioaccumulation. There are many studies on how to prevent the harmful effects of xenobiotics. This article discusses the main routes of ingestion of these foreign.
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Berichte der Organisationen zum Thema "Bioaccumulatie"

1

Bridges, Todd S., und Charles H. Lutz. Interpreting Bioaccumulation Data with the Environmental Residue-Effects Database. Fort Belvoir, VA: Defense Technical Information Center, Januar 1999. http://dx.doi.org/10.21236/ada362932.

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2

Farrar, J. D., Guilherme Lotufo und Jerre Sims. Development of a Bioaccumulation Test Method with the Amphipod Leptocheirus plumulosus. Fort Belvoir, VA: Defense Technical Information Center, April 2011. http://dx.doi.org/10.21236/ada540712.

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3

Fisher, Nicholas S. Bioaccumulation and Trophic Transfer of Long-Lived Radionuclides in Arctic Plankton. Fort Belvoir, VA: Defense Technical Information Center, Januar 1996. http://dx.doi.org/10.21236/ada337290.

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4

Steevens, Jeffery A., und Peter F. Landrum. DREDGING RESEARCH: Assessing Significance of Contaminant Bioaccumulation: A Biological-Effects-Based Approach. Fort Belvoir, VA: Defense Technical Information Center, März 2002. http://dx.doi.org/10.21236/ada402267.

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5

Young, J. S. Bioaccumulation and food chain transfer of corrosion products from radioactive stainless steel. Office of Scientific and Technical Information (OSTI), Juli 1986. http://dx.doi.org/10.2172/5528993.

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6

McFarland, Victor A., Joan U. Clarke und Robert M. Engler. Analysis of Uncertainty in TBP Estimation of PAH Bioaccumulation Potential in Sediments. Fort Belvoir, VA: Defense Technical Information Center, Juni 1999. http://dx.doi.org/10.21236/ada367678.

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7

Gustavson, Karl. Verifying Food Web Bioaccumulation Models by Tracking Fish Exposure and Contaminant Uptake. Fort Belvoir, VA: Defense Technical Information Center, März 2012. http://dx.doi.org/10.21236/ada568618.

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8

Adams, Marshall, Craig C. Brandt und Allison M. Fortner. Bioaccumulation Studies Associated with the Kingston Fly Ash Spill, Spring 2009 - Fall 2010. Office of Scientific and Technical Information (OSTI), Mai 2012. http://dx.doi.org/10.2172/1045859.

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9

Benemann, J. R., und E. W. Wilde. Literature review on the use of bioaccumulation for heavy metal removal and recovery. Office of Scientific and Technical Information (OSTI), Februar 1991. http://dx.doi.org/10.2172/5787800.

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10

Larson, Steven L., John H. Ballard, Fende Meng, Decheng Jin, Kai Guo, Liangmei Chen, Zikri Arslan et al. Influences of U sources and forms on its bioaccumulation in Indian mustard and sunflower. Engineer Research and Development Center (U.S.), Juni 2020. http://dx.doi.org/10.21079/11681/37275.

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