Relevant bibliographies by topics / Organochlorines pesticides

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Academic literature on the topic 'Organochlorines pesticides'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Organochlorines pesticides"

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Lv, Wu Wen. "Organochlorines in Chinese Women: Determinants of Serum Concentrations." Advanced Materials Research 183-185 (January 2011): 1513–16. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.1513.

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People are frequently exposed to various environmental chemicals such as organic pollutants, heavy metals, etc. Therefore, the aim of this paper is to investigate the accumulation level of organochlorines in women from Qiqihaer city in china. Of the 160 people investigated, 113 sujects were detected with different serum levels of organochlorine pesticides (range: 0.042 - 33.072 μg/L). Moreover, the results indicated that there was high serum level of accumulated organochlorines pesticides of women in Chinese, and the serum concentrations of organochlorines pesticides was associated with age.
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Dogheim, Salwa M., Sohair A. Gad Alla, Ashraf M. El-Marsafy, and Safaa M. Fahmy. "Monitoring Pesticide Residues in Egyptian Fruits and Vegetables in 1995." Journal of AOAC INTERNATIONAL 82, no. 4 (July 1, 1999): 948–55. http://dx.doi.org/10.1093/jaoac/82.4.948.

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Abstract Organophosphorus, dithiocarbamates, and some synthetic pyrethroids pesticides, which are commonly used in Egypt for pest control, were monitored, as well as persistent organochlorines, which had been prohibited from use several years ago. Fruit and vegetable samples (397) were collected from 8 local markets and examined for 52 pesticides. Of all analyzed samples, 42.8% contained detectable residues, of which 1.76% exceeded their maximum residue limits (MRLs). The rates of contamination with the different pesticides were 0-86%. However, violation rates among contaminated products were very low, ranging from 0 to 4.6%. In general, organochlorine pesticide residues were not detected in most samples. Dithiocarbamate residues were found in 70.4% of 98 samples analyzed for dithiocarbamates, but only one grape sample had residues exceeding the MRL established by the Codex Committee on Pesticide Residues.
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Edward. "BIOACCUMULATION OF ORGANOCHLORINES PESTICIDES (OCP) COMPOUND IN GREEN MUSSELLS (Perna viridis) IN JAKARTA BAY." Jurnal Ilmu dan Teknologi Kelautan Tropis 8, no. 1 (November 11, 2016): 85–97. http://dx.doi.org/10.29244/jitkt.v8i1.12498.

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ABSTRACTThe green mussel, Perna viridis can be used to determine bioaccumulation levels of organochlorine pesticides in a marine environment. Measurements on pesticide organochlorine concentration in green mussels (Perna viridis) were conducted in March and May 2013. The purpose of this research was to determine the bioaccumulation level of organochlorine pesticides in green mussels which were cultivated in Jakarta Bay. The samples were collected in Jakarta Bay in March and May 2013. The organochlorine pesticides concentration were measured by gas chromatography HP 5890 series II. The results showed that the average concentration of organochlorine pesticides in the small size of green mussells was 12.842 ppb, in the medium size was 27.065 ppb, and in the big size was 108.646 ppb. These concentrations were still lower than safety threshold limit value for seafood stated by EPA (Environment Protection Agency) i.e., 1,500 ppb. The comparation between organochlorine pesticide concentration in seawater and organochlorine pesticide in green mussels (bioaccumulation factor) were 2,140 for small green mussel, 4,510 for medium green mussel, and 18,107 for big green mussels, respectively.Keywords: bioaccumulation, green musselss, organochlorine pesticide, Jakarta Bay
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Monty Abibata, Camara, and Elleingand Fattoh Eric. "OCCURRENCE OF ORGANOCHLORINE PESTICIDES IN SOILS AND FOODS FROM COTTON FIELDS AND RELATED HEALTH RISKS IN THE HAMBOL REGION (COTE DIVOIRE)." International Journal of Advanced Research 8, no. 12 (December 31, 2020): 411–20. http://dx.doi.org/10.21474/ijar01/12164.

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Organochlorine pesticides derived from the chlorination of cyclic and/or aromatic hydrocarbons. But, due to their persistence in the environment and their bioaccumulation in the body leading health problems, they were banned from using.They have been widely used around the world in agriculture and public health in particular in Cote dIvoire. This study was aimed to determine the concentrations of organochlorine pesticides residues in soils and crops from Hambol region (Cote dIvoire) and to evaluate the potential carcinogenic risk based on the concentrations found.Organochlorine pesticides residues were determined in soils and crops in cotton fields by using an HPLC. Soil samples analysed showed the presence of five organochlorine pesticide residues namely DDT (ND - 0.39 µg/kg), lindane (ND - 0.972 µg/kg), α-endosulfan (ND - 0.481 µg/kg), β-endosulfan (ND - 0.435 µg/kg) and sulfate-endosulfan (ND - 0.44 µg/kg). In crop samples, no pesticides were detected. The concentrations of detected organochlorines in soil samples were less than United States and FAO maximum residues limits for agricultural soils. The cancer risk assessment and hazard quotient values are under 10-6 and 1. The risks related to farmer exposure to DDT and lindane from soil via ingestion, inhalation and dermal route is negligible.
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Albero, Beatriz, Consuelo Sánchez-Brunete, and José L. Tadeo. "Multiresidue Determination of Pesticides in Honey by Matrix Solid-Phase Dispersion and Gas Chromatography with Electron-Capture Detection." Journal of AOAC INTERNATIONAL 84, no. 4 (July 1, 2001): 1165–71. http://dx.doi.org/10.1093/jaoac/84.4.1165.

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Abstract A multiresidue method was developed for the determination of 15 pesticides (organochlorines, organophosphorus compounds, pyrethroids, and other acaricides) in various commercial honeys (eucalyptus, lavender, orange, rosemary, and multifloral). The analytical procedure is based on the matrix solid-phase dispersion of honey in a mixture of Florisil and anhydrous sodium sulfate; the mixture is placed in small plastic columns and extracted with hexane–ethyl acetate (90 + 10, v/v). The pesticide residues are determined by capillary gas chromatography with electron-capture detection. Recoveries with the method at concentrations between 0.15 and 1.5 μg/g ranged from 80 to 113%, and relative standard deviations were <10% for all the pesticides studied. The pesticide detection limits were within the range 0.5–5 mg/kg for organochlorines, around 3 μg/kg for the chlorinated organophosphorus pesticides studied, near 15 μg/kg for fluvalinate, and about 3 μg/kg for the other pyrethroids.
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Chanti-Ketterl, Marianne, Brenda L. Plassman, Christine Parks, Nicholas Herkert, Julie Fleenor, Sharon Zhang, and Heather Stapleton. "VALIDATING SILICONE WRISTBANDS TO MEASURE PESTICIDE EXPOSURES AMONG OLDER ADULTS -- PROOF-OF-CONCEPT STUDY." Innovation in Aging 3, Supplement_1 (November 2019): S903. http://dx.doi.org/10.1093/geroni/igz038.3298.

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Abstract Silicone wristbands have been used to measure exposure to pesticides and other chemicals among children and younger farm workers, but not in older adults. Thus, we aimed to examine exposure to pesticides using silicone wristbands in a small cohort of older adults living on agricultural land, with variable contact with fields and pesticides. We also investigated correlations between pesticide levels on wristbands and urinary pesticide metabolites. Organophosphate (OPH) pesticides and several organochlorines were measured in wristbands worn by 15 males age 70+ (10 farmers using pesticides and 5 non-farmers with no recent pesticide use). Wristbands were worn continuously for 5-days. End-of-day urine samples were collected on days 1-3-5. Spearman correlations and Wilcoxon Scores were calculated. Five pesticides were quantified in the wristbands and detection frequencies ranged from 40-90%. In urine,12 OPH metabolites were quantified, but only 5 were detected in >50% of the samples. None of 5 urinary herbicides were detected. Imputation was performed by dividing minimum-detect by square-root-2. Malathion was only detected in farmers compared to non-farmers. Correlations between OPH urinary metabolites and wristband were examined but only two were significant and were negative in direction. Notably, organochlorine DDE on the wristbands was significantly correlated with 3 OPH metabolites. These unexpected relationships, based on small numbers, suggest a need to replicate this work in a larger study sample to explore potential for confounding or mixtures in future studies of pesticides and health in older farmers.
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Suleiman, F., A. A. Nuhu, K. I. Omoniyi, and Z. I. Yashim. "DETERMINATION OF ORGANOCHLORINE PESTICIDE RESIDUES IN SOME VEGETABLES AND FRUIT BY QuEChERS TECHNIQUES AND GAS CHROMATOGRAPHY /MASS SPECTROMETRY." FUDMA JOURNAL OF SCIENCES 4, no. 2 (July 3, 2020): 365–70. http://dx.doi.org/10.33003/fjs-2020-0402-223.

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The concentrations of organochlorine pesticide residues were analysed in some vegetables and fruit (spinach, lettuce, cabbage, tomatoes, carrots and onions) grown at Dagachi farming areas along River Galma of Zaria in Kaduna State, Nigeria. Sample collection and preparation were carried out using standard procedures. The concentrations of all the pesticides in the fruits and vegetables samples were analysed using quick easy cheap effective rugged and safe (QuEChERS) multi- residue extraction and clean up techniques, followed by gas chromatography – mass spectrometry (GC – MS). The most commonly detected organochlorine pesticide residues in the entire samples analysed are lindane, delta – BHC, heptachlor epoxide (B), endosulfan I, dieldrin, and endosulfan II. Furthermore, the results of the study shows that the mean concentration of these organochlorines pesticide detected were higher in onion and spinach with heptachlor epoxide (B) having concentrations 2.303 mg/kg and 2.011 mg/kg respectively. Likewise, endosulfan II (1.433 mg/kg) in lettuce was observed. Heptachlor epoxide (B) detected were also very high in other samples such as carrot, cabbage, and tomatoes and with values 0.600 mg/kg, 0.716 mg/kg, and 0.524 mg/kg respectively. Indeed, these concentrations of all the organochlorine pesticides detected in the fruit and vegetables samples analysed were observed to be at alarming levels, much higher than the maximum residue limits (MRLs) by the Codex 2009 (WHO and FAO) except for lindane with values 0.007 mg/kg and 0.01 mg/kg in carrot and onions respectively
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Tabucanon, M. S., S. Watanabe, C. Siriwong, R. Boonyatumanond, S. Tanabe, H. Iwata, R. Tatsukawa, and S. Ohgaki. "Current Status of Contamination by Persistent Organochlorines in the Lower Chao Phraya River, Thailand." Water Science and Technology 25, no. 11 (June 1, 1992): 17–24. http://dx.doi.org/10.2166/wst.1992.0268.

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Water and sediment samples collected from the lower Chao Phraya River and a canal along the river during 1988 - 1991 were analyzed to determine the current status of contamination by organochlorine pesticides, such as HCHs, DDTs, aldrin, dieldrin and chlordanes. Aldrin and dieldrin had high frequencies of occurrence in water samples. The medians of concentrations of these pesticides were approximately one order of magnitude larger than total HCHs and total DDTs. Residue levels of these pesticides varied significantly. Relatively higher levels of aldrin were observed in the upstream; in contrast, residue levels of DDTs were higher in urban area. These phenomena seem to relate to the spraying purpose of these pesticides. Decreasing trends in the residue levels of pesticides during monitoring periods, however, were not observed clearly. Residue levels of organochlorines in the sediment samples were in the order of magnitude of PCBs, DDTs, chlordanes and HCHs.
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Mekonen, Seblework, Mohammedgezali Ibrahim, Higemengist Astatkie, and Aynalem Abreha. "Exposure to organochlorine pesticides as a predictor to breast cancer: A case-control study among Ethiopian women." PLOS ONE 16, no. 9 (September 23, 2021): e0257704. http://dx.doi.org/10.1371/journal.pone.0257704.

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Breast cancer (BC) is becoming one of the most prevalent non-infectious disease in low and middle income countries. The steady rise of BC incidence may be related to the different risk factors. Among many, rampant presence of environmental pollutants might be one of the risk factors. Therefore, the aim of this study is to investigate exposure to organochlorine pesticides as a risk factor to breast cancer. A case-control study design was employed among breast cancer patients and non-breast cancer individuals (controls). Blood samples were collected from 100 study participants (50 cases and 50 controls) followed by serum separation, extraction and cleanup using standard analytical procdures. The findings revealed that ten organochlorine pesticides were detected in the serum of the study participants. From the detected organochlorine pesticides, heptachlor was observed at higher concentration for breast cancer patients (6.90±4.37 μg/L) and controls (9.15±3.84 μg/L). Mean serum level of p,p’-DDE, p,p’-DDT, heptachlor, gamma-chlordane, endosulfan, and dibutyl-chlorendate were significantly higher in the serum of breast cancer patients than the controls. From the studied pesticides, p,p’-DDT and gamma-chlordane are significant predictors for BC, while, others are equivocal. A unit increment of the concentration of p,p’-DDT (AOR; 2.03, 95% CI: 1.041–3.969) increased the odds of developing breast cancer by two, while for gamma-chlordane (AOR;3.12, 95% CI; 1.186–8.203) by three. Our study results suggesting that, organochlorines are a risk factors for breast cancer in Ethiopia. Decreasing exposure to such organochlorines might have a significant public health relevance in reducing non-communicable chronic illnesses. Besides, continues monitoring of persistent organic pollutants using body biomarkers is important for disease prevention and device mitigation measures.
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N. OLIVER, MAITERA, HITLER LOUIS, BATA S. YUSUF, ADELEYE T. ADEREMI, AKAKURU U. OZIOMA, and MAGU O. THOMAS. "Comparative Analysis of the Level of Pesticide Residues in Beef, Chevon and Internal Organs of Cows and Goats Slaughtered in Yola Abattoir of Adamawa State, Nigeria." Current World Environment 13, no. 3 (October 20, 2018): 416–23. http://dx.doi.org/10.12944/cwe.13.3.14.

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This work examines the presence of pesticides residue levels in beef, chevon, and internal organs obtained from cows and goats slaughtered at Yola Abattoir in Adamawa State.Residues of organochlorines and organophosphorus pesticides were extracted from the meat, chevon and internal organs of the cows and goats using QuEChERS method, and analyzed by GC-MS technique.The residue analysis revealed that beef and chevon samples had no traces of organochlorines whileorganophosphorus (chlorpyrifos, dichlorvos, dichlorpyrifos, diazinon, dimethoate, primifos-methyl, and malathion) pesticide residues detected were below threshold level of 0.01 mg/kg. The result of the animals’ intestine showed the presence of chlorpyrifos (0.034 ± 0.001 vs. 0.031 ± 0.001) and (0.027 ± 0.001 vs.0.023 ± 0.0014) above the standard values, whereas, the dichlorvos level were (0.059 ± 0.0014 vs. 0.050 ± 0.0007), (0.061 ± 0.0007 vs. 0.043 ± 0.0014) and (0.072 ± 0.0014 vs. 0.031 ± 0.001) below the maximum residual value of 1 mg/kg.The kidney residue revealed that dichlorpyrifos, diazinon, dimethoate, primi-methyl and malathion were below the maximum residue limit (0.001 mg/kg) in the cow samples while chlorpyrifos: (0.013 ± 0.001 vs. 0.012 ± 0.001 vs. 0.018 ± 0.001 vs. 0.053 ± 0.001) were above the standard value (0.01 mg/kg). Dichlorvos was detected in the kidney of the goats; (0.069 ± 0.0007 vs. 0.035 ± 0.0014) and (0.052 ± 0.0014) below the maximum residual limit (MRL). Residue analysis in the livers of the cows also showed the presence of chlorpyrifos at (0.011 ± 0.001), (0.014 ± 0.001), (0.08 ± 0.001) above the recommended value, while dichlorvos (1.012 ± 0.001 vs. 0.027 ± 0.001) and (0.029 ± 0.001 vs. 0.037 ± 0.001) were below MRL established by the international health regulation agencies. Residue analysis of all the samples studied shows no trace of organochlorine pesticides. These findings are alarming and are potential threats to the public health.
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Dissertations / Theses on the topic "Organochlorines pesticides"

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Kasemodel, Mariana Consiglio. "Seleção de bactérias para biodegradação dos pesticidas organoclorados DDD, PCP e dieldrin." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/75/75133/tde-06032013-163207/.

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O objetivo deste trabalho foi a seleção de bactérias capazes de biodegradar os pesticidas organoclorados dieldrin, DDD e PCP. Inicialmente, foram realizados os ensaios de tolerância visando à seleção das bactérias degradadoras; posteriormente foram realizados os ensaios de biodegradação em meio liquido utilizando a bactéria selecionada. Dentre as 14 linhagens bacterianas isoladas testadas, selecionou-se a linhagem Pseudomonas aeruginosa L2-1 por apresentar maior tolerância a todos os pesticidas. Os ensaios de biodegradação foram realizados em diferentes meios de cultura, variando-se a concentração de glicose, a fonte de nitrogênio e a presença de ramnolipídeo. Os ensaios de biodegradação foram realizados determinando-se a concentração de pesticida, a concentração de glicose, o número de células viáveis, e o pH. O meio de cultura que mais favoreceu a biodegradação dos três pesticidas foi o meio com nitrato de sódio e 0,5% de glicose, obtendo-se biodegradação de aproximadamente 50% para cada pesticida após três dias de incubação. Na ausência de glicose, o meio com nitrato de amônio e 0,1% de ramnolipídeo, favoreceu a biodegradação, obtendo-se após 14 dias de incubação 36,8% de biodegradação de dieldrin; 33,7% de DDD e 42,8% de PCP. De uma forma geral, as taxas de biodegradação pela P. aeruginosa L2-1 foram maiores em menores concentrações de glicose e na presença de ramnolipídeo. Ao alterar a fonte de nitrogênio foram observados resultados diversos sobre a taxa de biodegradação: na ausência de glicose, o nitrato de sódio favoreceu a biodegradação de PCP, enquanto o nitrato de amônio favoreceu a biodegradação de dieldrin, na presença de glicose observou-se o inverso. A taxa de biodegradação do DDD não foi significativamente alterada ao variar a fonte de nitrogênio. A bactéria selecionada P. aeruginosa L2-1 apresentou potencial para biodegradação de pesticidas organoclorados, sendo que as condições nutricionais do meio influenciaram diretamente a biodegradação.
The objective of this work was the selection of bacteria capable of biodegrading the organochloride pesticides dieldrin, DDD and PCP. Initially tolerance tests were conducted in order to select degrading bacteria subsequently, biodegradation tests were carried out in liquid medium using the selected bacteria. Among the 14 bacterial isolated strains, Pseudomonas aeruginosa L2-1 was selected due to its greater tolerance to all pesticides. The biodegradation tests were conducted on different culture media, varying the concentrations of glucose, nitrogen source and presence of rhamnolipid. Biodegradation studies were performed by measuring the concentration of pesticide, the concentration of glucose, the number of viable cell and pH during time. The best medium for the biodegradation of all three pesticides was composed of sodium nitrate and 0.5% glucose, giving approximately 50% yield after three days of incubation. In the absence of glucose, the medium containing ammonium nitrate and 0.1% rhamnolipid improved biodegradation yielding, after 14 days of incubation, 36.8% biodegradation of dieldrin; 33.7% DDD and 42.8% of PCP. In general, the biodegradation rates of pesticides by P. aeruginosa L2-1 were greater at lower concentrations of glucose and in the presence of rhamnolipid. Nitrogen source had different effects on the rate of biodegradation: in the absence of glucose, sodium nitrate favored the biodegradation of PCP, whereas ammonium nitrate favored the biodegradation of dieldrin; and in the presence of glucose, it was observed the opposite. The biodegradation rate of the DDD was not significantly altered by the nitrogen source tested. The selected bacteria, P. aeruginosa L2-1, showed potential for the biodegradation of organochloride pesticides demonstrating that nutritional conditions has a direct effect on degradation yields.
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Yogui, Gilvan Takeshi. "Ocorrência de compostos organoclorados (pesticidas e PCBs) em mamíferos marinhos da costa de São Paulo (Brasil) e da Ilha Rei George (Antártica)." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/21/21133/tde-17032002-115002/.

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Os compostos organoclorados causam grande impacto na natureza devido a três características básicas: persistência ambiental, bioacumulação e alta toxicidade. Os mamíferos marinhos estão entre os organismos mais vulneráveis à toxicidade crônica desses contaminantes porque, além de concentrá-los em grande quantidade, a fêmea transfere parte de sua carga ao filhote durante a gestação e a lactação. Assim, o presente trabalho teve como objetivos otimizar uma metodologia para determinação de organoclorados (pesticidas e PCBs) em matrizes gordurosas e verificar a ocorrência dos mesmos na gordura subcutânea de mamíferos marinhos amostrados na costa de São Paulo (Brasil) e na Ilha Rei George (Antártica). No protocolo metodológico otimizado, a extração foi realizada em extrator Soxhlet (8 h) com uma mistura de n-hexano e diclorometano. A etapa de purificação foi feita através de tratamento ácido e o extrato final analisado em cromatógrafo a gás equipado com detector de captura de elétrons (GC-ECD). A performance do método foi avaliada com material de referência certificado, enquadrando-se dentro de padrões internacionais de controle de qualidade. O limite de detecção do método foi em média 2 ng g-1. As análises apontaram DDTs e PCBs como os grupos que mais causam impacto nos cetáceos da costa de São Paulo. Isso refletiu o histórico de ambos no Brasil, tanto em indústria como em agricultura e saúde pública. Em contrapartida, HCHs e HCB não apresentaram concentrações elevadas, fato que pode ser atribuído à volatilidade dos mesmos em regiões de clima tropical. Da mesma maneira, a-clordano, g-clordano e mirex não foram detectados em níveis significativos. A foca de Weddell (Leptonychotes weddelli), habitante do continente antártico, evidenciou as menores cargas de contaminante entre os animais estudados. As toninhas (Pontoporia blainvillei) e o golfinho-nariz-de-garrafa (Tursiops truncatus) também apresentaram baixos níveis de organoclorados. Os botos-cinza (Sotalia fluviatilis) revelaram concentrações de DDT iguais ou superiores a cetáceos da Índia, país onde esse pesticida ainda não está proibido. Já o golfinho-de-dentes-rugosos (Steno bredanensis) mostrou a maior contaminação entre os animais analisados, comparável a espécies estudadas em águas costeiras de países desenvolvidos (onde os organoclorados foram muito utilizados).
Organochlorine compounds cause strong impact on the nature, as a consequence of three basic characteristics: environmental persistence, bioaccumulation, and high toxicity. The marine mammals are one of the most vulnerable organisms to the chronic toxicity of these contaminants. Besides the high concentration in the body, the female transfers part of her load to the offspring during gestation and lactation. The aim of this study was (1) the optimization of a methodology for determining chlorinated hydrocarbons (pesticides and PCBs) in fatty biological matrices and (2) the analysis of organochlorines in marine mammals blubber sampled along São Paulo coast (Brazil) and King George Island (Antarctica). According to the optimized methodology, the extraction was carried out in Soxhlet apparatus (8 h) with a mixture of n-hexane and dichloromethane. The clean-up was carried out with acid treatment and the resulting extract injected into gas chromatography coupled to electron capture detector (GC-ECD). The method performance was evaluated with certified reference material and fitted for international standards of control quality. The mean method detection limit was 2 ng g-1. DDTs and PCBs were the most concentrated organochlorines in the cetaceans from São Paulo coast. These findings reflected their past usage in Brazil by industry, agriculture, and public health. On the other hand, both HCHs and HCB were not found in high concentration likely due to their volatility in tropical climate areas. Mirex, a-chlordane and g-chlordane were not detected in elevated levels. The Weddell seal (Leptonychotes weddelli), from Antarctic continent, presented the smallest load among the studied animals. As the same way, the franciscanas (Pontoporia blainvillei) and the bottlenose dolphin (Tursiops truncatus) presented low organochlorine levels. The marine tucuxi (Sotalia fluviatilis) showed equal or higher DDT concentration than Indian cetaceans where that pesticide is still in use. The rough-toothed dolphin (Steno bredanensis) revealed the greatest contamination among the analyzed animals, comparable to species studied in the coastal waters of developed countries (where organochlorines were extensively used).
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Oliveira, Justine Paula Ramos de. "Estudo dos poluentes orgânicos persistentes (POPs) em regiões industriais da Grande São Paulo - via cromatografia a gás acoplada a espectrometria de massas (GC-MS) e captura de elétrons (GC-ECD)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-06062013-091439/.

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O estudo objetivou desenvolver e validar um método para identificar e quantificar poluentes orgânicos persistentes, conhecidos como POPs, em solo de regiões industriais dos municípios de Caieiras e Franco da Rocha SP, via cromatografia a gás acoplada a Espectrometria de Massas (GC-MS) e Detector por Captura de Elétrons (ECD). Em observância ao Tratado de Estocolmo, patrocinado pela Organização das Nações Unidas ONU, que prevê o banimento de pelo menos doze dos POPs, e no qual o Brasil é um dos 113 países signatários, o trabalho visou colaborar positivamente com essa questão ambiental tão importante. Estes compostos são tóxicos e altamente estáveis no ambiente e em organismos vivos, dentre os quais, são abordados nesse trabalho o clordano cis/trans (C10H6Cl8), o heptacloro (C10H5Cl7), o heptacloro epóxido cis/trans (C10H5Cl7) e os isômeros α-, β-, γ- e δ-BHC (C6Cl6). Para garantir a confiabilidade das análises realizadas, foram realizados ensaios de Validação da metodologia, com base nas diretrizes do INMETRO. A técnica de extração utilizada foi o QuEChERS, obtendo resultados de recuperação na faixa de 70 a 120% para a maioria dos compostos estudados, considerados aceitáveis para matrizes complexas. Os limites de detecção e quantificação do método compreenderam a faixa de 0,0002 e 0,01 μg.g1, respectivamente. As amostras analisadas apresentaram contaminação pelos compostos hexaclorobenzeno α-, β-, γ- e δ-, muitas das quais estão acima dos limites máximos permissíveis, de acordo com as legislações nacionais e internacionais vigentes.
The study aimed to develop and validate a method to identify and quantify persistent organic pollutants, known as POPs in soil of industrial regions Caieiras and Franco da Rocha municipalities in São Paulo, via gas chromatography coupled with Mass Spectrometry (GC-MS) and Electron Capture Detector (ECD). In compliance with the Treaty of Stockholm, sponsored by the United Nations - UN, which provides for a ban of at least twelve POPs, in which Brazil is one of the 113 signatory countries, the work aims to contribute positively to the environmental issue as important . These compounds are highly toxic and stable in the environment and living organisms, among which are address in this work chlordane cis / trans (C10H6Cl8), heptachlor (C10H5Cl7), heptachlor epoxide the cis / trans (C10H5Cl7) and the isomers α-, β-, γ- and δ-BHC (C6Cl6). To ensure reliability of the analysis carried out, tests were carried out validation method, based on the guidelines of INMETRO. The extraction technique was used QuEChERS, achieving recovery in the range 70 to 120% for the most of compounds, acceptable for complex matrices. The limits of detection and quantification of the method comprises the range of 0.0002 and 0.01 μg.g-1, respectively. The samples analyzed were contaminated by compounds hexachlorobenzene α-, β-, γ- and δ-, many of which are above the maximum allowable in accordance with national legislation and international law.
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Lee, Iwa. "Developmental neurotoxicity of persistent and non-persistent pollutants : Behavioral and neurochemical assessments of a perfluorinated compound, pesticides and interaction effects." Doctoral thesis, Uppsala universitet, Institutionen för organismbiologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-261742.

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The focus of this thesis was to investigate developmental neurotoxic effects of different persistent and non-persistent environmental pollutants, alone or in binary mixtures, when exposure occurs during a critical period of brain development, in mice. The compounds investigated included a perfluorinated compound, perfluorohexane sulphonate (PFHxS), and four different pesticides, endosulfan, cypermethrin, chlorpyrifos and carbaryl. Both persistent and non-persistent pollutants are detected in the environment and in humans, which shows that exposure to these compounds is occurring in real life. Humans can therefore be exposed to various pollutants during their whole lifetime, starting from the gestational period to adulthood. Furthermore, exposure to environmental pollutants is rarely exclusive to a single compound, but rather occurs through combinations of various pollutants present in the environment. Exposure to environmental pollutants during human brain development have been suggested to be a possible cause for neuropsychiatric disorders, such as autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD). Previous studies have shown that chemicals can induce irreversible disorders in brain function when exposure to these chemicals occurs during a critical defined period of the brain development known as the brain growth spurt (BGS). The BGS is characterized by a rapid growth and development of the immature brain. In humans, and mice, this period also overlaps the lactation period indicating that newborns and toddlers can be exposed via mothers’ milk as well. This thesis has shown that a single oral exposure to PFHxS, endosulfan, cypermethrin, chlorpyrifos or carbaryl can induce developmental neurotoxic effects in mice, when exposure occurs during a critical period of brain development. These effects are manifested as persistent altered adult spontaneous behavior in a novel home environment, modified habituation, altered susceptibility of the cholinergic system and changed levels of neuroproteins in the mouse brain. Furthermore, a single neonatal co-exposure to a binary mixture of carbaryl/chlorpyrifos or PFHxS/endosulfan can interact and exacerbate the adult behavioral effects. These effects were seen at dosages were the single compound did not elicit a response or induced a much weaker behavioral effect. This indicates that risk assessments conducted on single compounds might underestimate interaction effects of mixtures when co-exposed.
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Ciliberti, Alexandre. "Le Varan du Nil (Varanus niloticus), indicateur de la pollution des zones humides d’Afrique Sub-Saharienne." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10241/document.

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En Afrique, la contamination des zones humides par les métaux et les pesticides va se poursuivre durablement. Pour autant, le statut toxicologique de ces milieux reste trop peu documente. Le but du présent travail est d’estimer la valeur du varan du Nil (Varanus niloticus) en tant qu’espèce sentinelle pour la contamination des zones humides continentales d’Afrique sub-Saharienne. Plomb, cadmium, et pesticides organochlorés et organophosphorés ont été quantifies, par spectrométrie d’absorption atomique et chromatographie gazeuse (respectivement), dans plusieurs tissus provenant de 71 spécimens issus de quatre sites (au Mali et au Niger) juges a priori inégalement contamines. Bien que des différences claires apparaissent, la contamination environnementale s’avère modérée sur les quatre sites, et ne semble pas constituer un risque notable pour les varans ni pour les humains qui s’en nourrissent occasionnellement. Toutefois la variabilité interindividuelle est importante. Les organotropismes des polluants détectés sont cohérents avec ceux préalablement décrits. Si l’on n’a pu mettre en évidence de différence liée au sexe en ce qui concerne les pesticides, les femelles présentaient des charges en métaux supérieures. La relation entre d’autres facteurs (taille, proportion de graisse) et les concentrations tissulaires a également été considérée. Les varans sont susceptibles de révéler des différences subtiles de contamination environnementale entre sites, et la résolution spatiale de l’outil semble très fine. La possibilité pratique d’utiliser cet indicateur se trouve donc validée. Un travail expérimental sur des varans captifs a par ailleurs été mené pour approfondir l’étude
In Africa, metal and pesticide contamination of wetlands is supposed to continue on a permanent basis. However, the ecotoxicological status of these ecosystems remains poorly documented. The aim of the present work is to assess the value of the Nile monitor (Varanus niloticus) as a sentinel species for the environmental contamination of continental wetlands in sub-Saharan Africa. Lead and cadmium on the one hand, and organochlorine and organophosphate pesticides on the other, have been quantified in several tissues by atomic absorption spectrophotometry and gas chromatography, respectively. Samples come from 71 specimens originating from four sites considered unequally contaminated (in Mali and Niger). Although clear differences appear between sites, the environmental contamination turns out to be moderate at the four sites, and does not seem to represent a significant risk neither for the monitors themselves, nor for occasional human consumers. However, the interindividual variability is important. The organotropisms relative to the detected pollutants are consistent with those described in previous studies. Concerning the pesticides, no gender effect has been found, whereas females were more contaminated by metals. The relation between other factors (size, proportion of fat) and tissue concentrations has been considered too. Nile monitors can reveal subtle differences in local pollution and the spatial resolution of this tool seems to be very sharp. Its practical relevance is thus validated. Additionally, an experimental work has been carried out on captive monitors to go into the subject in greater depth
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Dias, Patrick Simões. "Poluentes orgânicos persistentes na biota marinha do Arquipélago de São Pedro e São Paulo." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/21/21133/tde-04082011-152211/.

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Algumas ilhas oceânicas como o Arquipélago de São Pedro e São Paulo podem ser consideradas áreas remotas e preservadas devido a sua distância do continente. Entretanto, essas regiões não estão isentas da influência de agentes antrópicos oriundos das regiões costeiras, como é o caso dos poluentes orgânicos persistentes (POPs). A presente proposta visou determinar a ocorrência e distribuição de POPs na biota marinha, do Arquipélago de São Pedro e São Paulo. As extrações das amostras foram realizadas em micro-ondas e os pesticidas organoclorados e os PCBs/PBDEs foram analisados respectivamente por cromatografia a gás com detecção por captura de elétrons e espectrometria de massas. Os compostos predominantes foram os PCBs e os DDTs que apresentaram, respectivamente, as concentrações máximas de: 127,7 e 34,37 ng g-1 para Exocoetus volitans (Peixe-voador), 98,15 e 8,89 ng g-1 para Sula leucogaster (Atobá-marrom) e 90,5 e 18,86 ng g-1 Grapsus grapsus (Aratu). Os baixos valores dos contaminantes sugerem um relativo grau de isolamento e preservação, porém a ocorrência e o perfil de distribuição dos PCBs sustenta a hipótese de que a principal fonte de contaminação em áreas remotas é o transporte atmosférico de longa distância, e demonstra a ubiquidade desses poluentes no ambiente marinho.
Some oceanic islands, such as São Pedro e São Paulo Archipelago may be considered remote areas and preserved due to its distance from the mainland. However, these areas are not exempt from the influence of anthropogenic agents from coastal regions, such as persistent organic pollutants (POPs). This proposal aimed to determine the occurrence and distribution of POPs in marine biota of São Pedro e São Paulo Archipelago. Samples extractions were performed with microwave and organochlorine pesticides and PCBs/PBDES was respectively analysed by gas chromatography with electron capture detection and mass spectrometry. The predominant compounds were PCBs and DDTs that presented, respectively, the maximum concentrations 127.7 and 34.37 ng g-1 to Exocoetus volitans (Flying fish), 98.15 and 8.89 ng g-1 to Sula leucogaster (Brown Booby) and 90.5 and 18.86 ng g-1 to Grapsus grapsus (Sally Lightfoot crab). The low levels of contaminants suggest a relative degree of isolation and preservation, but the occurrence and distribution profiles of PCBs supports the hypothesis that the main source of contamination in remote areas is long range atmospheric transport, and demonstrates the ubiquity of those pollutants in the marine environment.
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Zheng, Guanyu. "Bioremediation of organochlorine pesticides contaminated soil with microemulsions." HKBU Institutional Repository, 2011. http://repository.hkbu.edu.hk/etd_ra/1245.

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Özer, Serdar Sofuoğlu Aysun. "Measurement Of Henry's Law Constant Of Organochlorinated Pesticides/." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/kimyamuh/T000344.pdf.

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Thesis (Master)--İzmir Institute of Technology, İzmir, 2005.
Keywords: Organic pollutants, thermodynamic properties, Henry's law constant, Organochlorinated pesticides. Includes bibliographical references (leaves. (leaves. 49-53).
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Aigner, Elizabeth Jo. "Enantiomeric ratios and concentrations of organochlorine pesticides in Ohio soils /." Connect to online version, 1996. http://hdl.handle.net/1989/3567.

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Roque, Inês Margarida Ferreira. "The barn owl (Tyto alba) as a biomonitor of environmental contamination with mercury and organochlorine compounds." Doctoral thesis, Universidade de Évora, 2017. http://hdl.handle.net/10174/20828.

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Numerosos químicos de origem industrial e natural estão a aumentar a nível global, enquanto os seus efeitos de longo-termo permanecem desconhecidos. A coruja-da-torres é um bom bioindicador de poluição ambiental e as suas penas podem ser utilizadas como ferramentas de biomonitorização minimamente invasivas. A variação intra-individual das concentrações de mercúrio pode ser minimizada através do cálculo de uma média a partir de várias penas do indivíduo, independentemente do tipo de pena. Várias penas do mesmo ninho podem ser combinadas para obter uma melhor estimativa da contaminação no território. Penas de indivíduos atropelados são representativas da contaminação ao nível regional. Menor bioacumulação está relacionada com culturas irrigadas e paisagens agrícolas heterogéneas. O habitat parece mediar a transferências de mercúrio do solo para as presas, e da cadeia trófica até à coruja-das-torres. As penas podem ser particularmente úteis para detetar pesticidas organoclorados em desuso, que geralmente ocorrem em concentrações residuais, embora a contaminação externa deva ser avaliada; Summary: Numerous industrial and natural chemicals are increasing worldwide, while their long-term effects on wildlife and human health remain unknown. Barn owls are good biondicators of environmental pollution and their feathers may be used as minimally invasive monitoring tools. Intra-individual variation in mercury concentrations can be minimized by calculating an average from several feathers from an individual, regardless of feather type. Several feathers from the same nest may be pooled to better represent the average mercury contamination in the territory. Feathers from road-killed barn owls are representative of contamination at a regional level. Lower bioaccumulation in the barn owl is linked with irrigated crops and heterogeneous agricultural landscapes. Habitat seems to mediate the transfer of mercury from the soil to the prey, and along the food web to the barn owl. Feathers may be particularly suitable to detect legacy organochlorine pesticides which generally occur in residual concentrations, but external contamination should be assessed.
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Books on the topic "Organochlorines pesticides"

1

Fleming, W. James. Organochlorine pesticides and PCB's: A continuing problem for the 1980s. [Washington, D.C.?: U.S. Fish and Wildlife Service], 1985.

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Tanner, Dwight Q. Organochlorine pesticides in the Johnson Creek Basin, Oregon, 1988-2002. Reston, Va: U.S. Dept. of the Interior, U.S. Geological Survey, 2004.

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Brazil. Secretaria de Ciência, Tecnologia e Insumos Estratégicos. Departamento de Ciência e Tecnologia. Atuação do Ministério da Saúde no caso de contaminação ambiental por pesticidas organoclorados, na Cidade dos Meninos, Município de Duque de Caxias, RJ. 2nd ed. Brasília, DF: Editora MS, 2004.

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Kratzer, Charles R. Transport of sediment-bound organochlorine pesticides to the San Joaquin River, California. Sacramento, Calif: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Kratzer, Charles R. Transport of sediment-bound organochlorine pesticides to the San Joaquin River, California. Sacramento, Calif: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Kratzer, Charles R. Transport of sediment-bound organochlorine pesticides to the San Joaquin River, California. Sacramento, Calif: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Kratzer, Charles R. Transport of sediment-bound organochlorine pesticides to the San Joaquin River, California. Sacramento, Calif: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Gruber, S. J. Organochlorine pesticides and PCBs in aquatic ecosystems of the Central Columbia Plateau. Tacoma, WA: U.S. Dept. of the Interior, U.S. Geological Survey, [1996], 1996.

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Ogram, Andrew Vaughn. Final report--biological breakdown of pesticides in Lake Apopka North Shore Restoration Area soil in a mesocosm experiment. [Palatka, Fla.]: St. Johns River Water Management District, 2007.

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Ogram, Andrew Vaughn. Final report--biological breakdown of pesticides in Lake Apopka North Shore Restoration Area soil in a mesocosm experiment. [Palatka, Fla.]: St. Johns River Water Management District, 2007.

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Book chapters on the topic "Organochlorines pesticides"

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Hallenbeck, William H., and Kathleen M. Cunningham-Burns. "Organochlorines." In Pesticides and Human Health, 94–96. New York, NY: Springer New York, 1985. http://dx.doi.org/10.1007/978-1-4612-5054-8_62.

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Nagata, Yuji, Michiro Tabata, Yoshiyuki Ohtsubo, and Masataka Tsuda. "Biodegradation of Organochlorine Pesticides." In Manual of Environmental Microbiology, 5.1.2–1–5.1.2–30. Washington, DC, USA: ASM Press, 2015. http://dx.doi.org/10.1128/9781555818821.ch5.1.2.

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Cioroiu, M. E., D. Tarcau, and B. I. Cioroiu. "Organochlorine pesticides in colostrums." In Handbook of dietary and nutritional aspects of human breast milk, 797–812. The Netherlands: Wageningen Academic Publishers, 2013. http://dx.doi.org/10.3920/978-90-8686-764-6_47.

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Hassall, Kenneth A. "Organochlorine insecticides." In The Biochemistry and Uses of Pesticides, 155–84. London: Palgrave Macmillan UK, 1990. http://dx.doi.org/10.1007/978-1-349-20990-3_6.

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León-Santiesteban, Héctor Hugo, and Refugio Rodríguez-Vázquez. "Fungal Degradation of Organochlorine Pesticides." In Microbe-Induced Degradation of Pesticides, 131–49. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45156-5_6.

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Song, Shijie, Fernando Cardozo-Pelaez, and Juan Sanchez-Ramos. "Relationship of Organochlorine Pesticides to Parkinsonism." In Neurotoxic Factors in Parkinson’s Disease and Related Disorders, 237–45. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-1269-1_23.

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Kulkarni, Arun P., Kimberly A. Treinen, and Lorelle L. Bestervelt. "Human Placental Ca2+-ATPases: Targets for Organochlorine Pesticides?" In Cellular Biology and Pharmacology of the Placenta, 329–42. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4757-1936-9_24.

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Dobrinas, Simona, and Adriana Culea. "Analysis of Organochlorine Pesticides in Black Sea Sediments." In Environmental Security Assessment and Management of Obsolete Pesticides in Southeast Europe, 295–300. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6461-3_27.

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Singh, Dileep K., and N. Sarat Singh. "Endosulfan a Cyclodiene Organochlorine Pesticide: Possible Pathways of Its Biodegradation." In Microbe-Induced Degradation of Pesticides, 105–30. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45156-5_5.

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Gómez, M. J., M. A. Martínez-Uroz, M. M. Gómez-Ramos, A. Agüera, and A. R. Fernández-Alba. "Analysis of Organochlorine Endocrine-Disrupter Pesticides in Food Commodities." In Analysis of Endocrine Disrupting Compounds in Food, 75–125. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118346747.ch4.

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Conference papers on the topic "Organochlorines pesticides"

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Nuro, Aurel, and Bledar Murtaj. "LEVELS OF SOME PRIORITY SUBSTANCES ON ADRIATIC SEA, ALBANIA." In Fourth International Scientific Conference ITEMA Recent Advances in Information Technology, Tourism, Economics, Management and Agriculture. Association of Economists and Managers of the Balkans, Belgrade, Serbia, 2020. http://dx.doi.org/10.31410/itema.2020.277.

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This study evaluated levels for organochlorine pesticides (DDTs, HCHs, Heptachlors, Aldrins and Endosulfanes), their residues, polychlorinated biphenyls (PCB) and poly aromatic hydrocarbons (PAH) in water samples of Adriatic Sea, Albanian part. Water stations were chosen near the main river estuaries of Albania (Vjosa, Semani, Shkumbini, Erzeni, Mati and Buna rivers). These rivers have catchment areas that cover almost all Albania. First, agricultural, industrial and urban waste is transported in these rivers and after that they finished in Adriatic Sea. Water samples were analyzed for a five-year period from February 2015 to December 2019. Liquid-liquid extraction was used to isolate chlorinated pollutants and a florisil column was used for clean-up procedure. Analysis of organochlorine pesticides (according to Method EPA 8081B) and 7 PCB markers was realized using GC/ECD and RTX-5 capillary column. The PAHs were isolated by liquid-liquid extraction technique and after sample concentration qualitative and quantitative analyses were performed by the GC/FID technique. Organochlorine pollutants were detected for all stations of Adriatic Sea because of new arrivals by agricultural and industrial activity in river basins. The highest levels were found near Shkumbini and Semani estuaries due to impact Myzeqeja agricultural area. New arrivals from water irrigation and rainfall influence in found levels. Degradation products of pesticides and volatile PCBs were found at higher levels for all samples analyzed. The levels of some individual organochlorine pesticides were higher than EU and Albanian norms for Semani and Shkumbini rivers. Also, PAHs were found at higher levels for Semani River because of extracting-processing industry in Patos-Marinza area. Monitoring of organic pollutants in water of Adriatic Sea should be continuous because of its importance in fishing, tourism, recreation and Albania economy overall.
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Tomovska, Julijana, Vesna Hristova, Biljana Trajkovska, and Nikola Gjorgievski. "EXAMINATION OF ORGANOCHLORINE PESTICIDES IN GOAT’S MILK." In CBU International Conference on Integration and Innovation in Science and Education. Central Bohemia University, 2013. http://dx.doi.org/10.12955/cbup.2013.59.

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GIROTTI, S., F. FINI, P. RAUCH, B. MICKOVA, L. KARASOVA, L. FUKAL, A. ABAD, J. J. MANCLUS, J. V. MERCADER, and A. MONTOYA. "CHEMILUMINESCENT IMMUNOASSAYS FOR THE DETECTION OF ORGANOCHLORINE PESTICIDES." In Proceedings of the 11th International Symposium. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811158_0085.

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Li Sijing, Yang Shengke, Zhang Yajuan, Zhao Yue, and Chen Jing. "Adsorption studies of organochlorine pesticides on humic acid colloids." In 2011 International Symposium on Water Resource and Environmental Protection (ISWREP). IEEE, 2011. http://dx.doi.org/10.1109/iswrep.2011.5893309.

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Josan, Valentina, Inna Rastimesina, and Olga Postolachi. "The assessment of phytotoxicity of soil polluted with organochlorine pesticides." In National Scientific Symposium With International Participation: Modern Biotechnologies – Solutions to the Challenges of the Contemporary World. Institute of Microbiology and Biotechnology, Republic of Moldova, 2021. http://dx.doi.org/10.52757/imb21.033.

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Wu, Li, Chao Tai, Tongqian Zhao, and Yuanyuan Wang. "A New Method of Determinated organochlorine pesticides in the Surface Water." In 2009 International Conference on Energy and Environment Technology (ICEET 2009). IEEE, 2009. http://dx.doi.org/10.1109/iceet.2009.330.

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Huang, Hui Ping, Shi Hua Qi, Ping Zhang, Xiang Tian Tu, and Hongyin Han. "Investigation of Organochlorine Pesticides in Marine Organisms from Xinghua Bay, China." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5516474.

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Alexandrescu, Daniela Cristiana. "OBSERVATIONS REGARDING EVALUATION OF ORGANOCHLORINE PESTICIDES BIOREMANENCE IN A SURFACE WATER." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2015/b51/s20.079.

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Li, Jizhou, Xuyin Yuan, and Qiuke Su. "Environmental Assessment of Organochlorine Pesticides in Sediments from Quanzhou Bay, Southeast China." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5518047.

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Gong, Xiangyi, Shihua Qi, and Yanxin Wang. "Present Status of Organochlorine Pesticides Contamination in Water from Honghu Lake, China." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5515510.

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Reports on the topic "Organochlorines pesticides"

1

Hydrogeology, water quality, and potential for transport of organochlorine pesticides in ground water at the North Hollywood Dump, Memphis, Tennessee. US Geological Survey, 1992. http://dx.doi.org/10.3133/wri914022.

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Organochlorine pesticides and PCBs in stream sediment and aquatic biota—initial results from the National Water-Quality Assessment Program, 1992–1995. US Geological Survey, 2000. http://dx.doi.org/10.3133/wri004053.

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Occurrence and distribution of organochlorine pesticides, polychlorinated biphenyls, and trace elements in fish tissue in the lower Tennessee River basin, 1980-98. US Geological Survey, 2001. http://dx.doi.org/10.3133/wri014184.

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Spatial distribution and trends in trace elements, polycyclic aromatic hydrocarbons, organochlorine pesticides, and polychlorinated biphenyls in Lake Worth sediment, Fort Worth, Texas. US Geological Survey, 2003. http://dx.doi.org/10.3133/wri034269.

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of organochlorine pesticides and polychlorinated biphenyls in bottom and suspended sediment by gas chromatography with electron-capture detection. US Geological Survey, 2004. http://dx.doi.org/10.3133/wri034293.

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