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Relevant bibliographies by topics / Sediment quality guidelines

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Academic literature on the topic 'Sediment quality guidelines'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 June 2025

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Journal articles on the topic "Sediment quality guidelines"

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Borgmann, Uwe. "Derivation of cause-effect based sediment quality guidelines." Canadian Journal of Fisheries and Aquatic Sciences 60, no. 3 (2003): 352–60. http://dx.doi.org/10.1139/f03-026.

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Unlike Canadian Water Quality Guidelines, Canadian Interim Sediment Quality Guidelines (ISQGs) are not based on clear causeeffect relationships. They were derived using a modified U.S. National Status and Trends Program (NSTP) approach in which biological effects were compared with contaminant concentrations in field-collected sediments. Exceeding an assessment value indicates an increased likelihood of toxic effects, but correlation is not proof of cause, and it cannot be assumed that the contaminant present in excess of the assessment value is necessarily responsible for the observed effects. This has sometimes caused confusion and misinterpretation of the toxicological significance of sediment chemistry data. An alternative approach to computing sediment guidelines, based on estimating the bioavailable contaminant concentration and comparing this with concentrations known to be toxic, is proposed. Examples are given of guidelines for cadmium, copper, nickel, lead, and zinc computed using both methods for toxicity data collected from sediments in Canadian Shield lakes near smelters. The causeeffect based guidelines can be much higher than those computed using the NSTP approach. They can also be higher than toxic thresholds estimated from experiments with metal-spiked sediments. Only true causeeffect based guidelines should be used for predicting the cause of toxicity in sediments.

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Mambenga, Patrick Vualu Ibula. "Contamination Assessment of Heavy Metals in Sediment Cores from De Montigny Lake around Siscoe-Sullivan Former Mining Sites, Val-d’Or, Canada." Sustainability in Environment 6, no. 4 (2021): p16. http://dx.doi.org/10.22158/se.v6n4p16.

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Seven sediment cores were collected from De Montigny Lake in order to determine concentrations, and contamination assessment of heavy metals such as Cr, Zn, Ni, Pb, Cu, Co and Cd. The mean concentrations of heavy metals are as follows: 48.3 mg/kg for Cr, 36.4 mg/kg for Zn, 20.6 mg/kg for Ni, 14.7 mg/kg for Pb, 10.2 mg/kg for Cu, 6.7 mg/kg for Co and 0.1 mg/kg for Cd. Based on the sediment quality guidelines, the mean concentration metals such as Cr, Cu and Ni exceeded the US Environmental Protection Agency (USEPA) guideline. However, the concentration of Cr was more than the Canadian Water Quality Guidelines for Protection of Aquatic Life (CCME), and Threshold Effect Level (TEL) guidelines. The metal contamination in the sediments was also evaluated using Enrichment Factor (EF) and geoaccumulation index (Igeo) to assess natural and anthropogenic factors. The results of enrichment factor methods demonstrated that sediments from De Montigny Lake were moderately to high enriched, mainly controlled by through anthropogenic activities. According to Sediment Quality Guidelines (SQGs), the concentrations metals from the core sediment of De Montigny Lake are classified as having moderate impacts with potential adverse biotoxic effects.

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Gharibreza, Mohammadreza, Muhammad Aqeel Ashraf, Ismail Yusoff, and John Kuna Raj. "An Evaluation of Bera Lake (Malaysia) Sediment Contamination Using Sediment Quality Guidelines." Journal of Chemistry 2013 (2013): 1–13. http://dx.doi.org/10.1155/2013/387035.

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Bera Lake is known as the first RAMSAR site and is the largest natural lake in Malaysia. Sediment quality guidelines (SQGs) and Geoaccumulation index were used to evaluate Bera Lake sediment contamination. Five undisturbed cores were collected from Bera Lake sediment. Major and trace levels of elements were determined for 132 subsamples using an inductively coupled plasma mass spectrometry (ICP-MS). The results marked two major groups of metallic elements bonded to the terrestrial and organic-rich sediments. Terrestrial sediments were strongly associated with accumulation of Li, Al, Pb, Cu, Cr, Na, Mg, Sr, and K during main fluxes of metals. However, a strong positive correlation was obtained between Fe, Mn, As, Zn, Cu, Ni, Ca, and Cd elements and TOC and TN. The Mn/Fe ratio revealed a long-term redox and acidic condition at Bera Lake. Geoaccumulation index for all individual metals has classified Bera Lake sediment as low to moderately polluted. However, elemental values when compared with thresholds limits of SQG indicated that Bera Lake sediments were contaminated by arsenic and iron. Results prove that deforestation during the five phases of land developments since 1972 has significantly contributed to the existence of metals fluxes into the area.

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Long, Edward R., L. Jay Field, and Donald D. MacDonald. "Predicting toxicity in marine sediments with numerical sediment quality guidelines." Environmental Toxicology and Chemistry 17, no. 4 (1998): 714–27. http://dx.doi.org/10.1002/etc.5620170428.

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Cheam, V., T. Reynoldson, G. Garbai, J. Rajkumar, and D. Milani. "Local Impacts of Coal Mines and Power Plants across Canada. II. Metals, Organics and Toxicity in Sediments." Water Quality Research Journal 35, no. 4 (2000): 609–32. http://dx.doi.org/10.2166/wqrj.2000.035.

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Abstract A Canada-wide survey was undertaken to study local impacts of coal mines and coal-fired electrical generating stations. The first part dealt with thallium in waters and sediments. This, Fart II, deals with metals and organics in sediments as well as sediment toxicity to four different organisms. Several elevated metal and PAH concentrations as well as high toxicity (based on biological sediment guidelines) were observed compared to uncontaminated sites. Based on Ontario's sediment guidelines, most of the studied sediments fell in the "marginally to significantly polluted" category of sediment quality, although two belonged to the "grossly polluted" class due to the extremely high concentrations of some metals. The observed diversity of PAHs and near-unity carbon preference indices indicate non-biological origins of the studied sediments. In this initial study, four different organisms, Chironomus riparius, Hyalella azteca, Hexagenia spp. (Hexagenia limbata) and Tubifex tubifex were used to determine sediment toxicity, which showed 50% of the tested sites were highly stressed.

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Kwok, Kevin W. H., Graeme E. Batley, Richard J. Wenning, Lingyan Zhu, Marnix Vangheluwe, and Shirley Lee. "Sediment quality guidelines: challenges and opportunities for improving sediment management." Environmental Science and Pollution Research 21, no. 1 (2013): 17–27. http://dx.doi.org/10.1007/s11356-013-1778-7.

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Shanmugam, Senthil, Rajesh Paramasivam, Ramasamy Venkidasamy, and Hema Mani. "ASSESSMENT OF METAL POLLUTION IN INTER TIDAL AND BEACH SEDIMENTS ALONG NORTH EAST COAST OF TAMILNADU, INDIA." Journal of Advanced Scientific Research 12, no. 03 (2021): 201–11. http://dx.doi.org/10.55218/jasr.202112329.

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The concentrations of major (Al, Fe, Mg, Mn, Na, K and Ca) and trace (Cr, Cu, Ni, Pb and Zn) elements have been determined in inter tidal and beach surface sediments samples collected from North east coast of Tamilnadu, India. Major element analysis showed that the sediments had low concentrations when compared with crustal average and upper continental crust. Using sediment quality guidelines and different types of indexes, current trace elements pollution status in the study area were assessed. Sediment quality guidelines suggest that nickel and lead must be considered as a chemically potential concern in the study area. The indexes used in this study were enrichment factor, geo-accumulation index and modified degree of contamination. Different indexes gave diverse status of inter tidal and beach sediment quality. The results are discussed in the context of the sources and pathways of trace elements in the North east coast of Tamilnadu, India.

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Diallo, Ibrahima MBemba, and Hiroaki Ishiga. "Evaluation of Trace Metal Contamination in Ise Bay, Mie Prefecture, Central Japan, Based on Geochemical Analysis of Tidal Flat Sediments." Environment and Pollution 5, no. 1 (2016): 92. http://dx.doi.org/10.5539/ep.v5n1p92.

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<span lang="EN-US">Geochemical analysis of tidal flat sediments was conducted to evaluate the environment of Ise Bay, Mie, central Japan. The sediment samples were analyzed using XRF to determine the geochemical compositions of sediments in the Ise and Matsusaka estuaries and their foreshores. Enrichment Factor (EF) and the Anthropogenic Contribution (AC) parameters were used to examine the potential effect of human activity. Furthermore, the Coastal Ocean Sediment Database, lowest and severe effect levels and Canadian Sediment Quality Guidelines were applied as benchmarks to assess the sediment quality. The results show that the highest average concentrations of metals occur in the Ise estuary, mainly due to the presence of higher proportions of silt and clay in samples at that site. The EFs of Pb in the Matsusaka foreshore, and that of As in the Ise foreshore reflect minimal pollution. The average AC ranged from 1 to 30%, implying that the lithology is the primary control of any enrichment in trace metals within the bay. The sediment quality guidelines indicate that the metal levels in the study areas do not constitute a major threat to biota.</span>

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McCready, S., G. F. Birch, E. R. Long, G. Spyrakis, and C. R. Greely. "An Evaluation of Australian Sediment Quality Guidelines." Archives of Environmental Contamination and Toxicology 50, no. 3 (2006): 306–15. http://dx.doi.org/10.1007/s00244-004-0233-7.

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Joksimovic, Danijela, Ana Perosevic-Bajceta, Ana Pesic, Rajko Martinovic, and Neda Boskovic. "Heavy metal concentrations in sediment and fish species from Boka Kotorska Bay." Studia Marina 33, no. 1 (2020): 26—. https://doi.org/10.5281/zenodo.3932095.

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The concentrations of lead, mercury, copper and zinc were determined in sediments and muscle tissues of red mullet (<em>Mullus barbatus</em>) sampled from Boka Kotorska Bay, the Montenegrin coast. The average concentrations of the heavy metals found in sediment samples were: 31.8 ± 7.04 mg/kg for Pb, 0.388 ± 0.056 mg/kg for Hg, 57.7 ± 27.4 mg/kg for Cu and 111 ± 31.1 mg/kg for Zn, dry weight, while the average concentrations of heavy metals in red mullet samples were: 0.045 ± 0.011 mg/kg for Pb, 0.65 ± 0.14 mg/kg for Hg, 0.26 ± 0.04 mg/kg for Cu and 2.39 ± 0.21 mg/kg for Zn, wet-weight. According to sediment quality guidelines, included in the Canadian Environmental Quality Guidelines, only the concentrations of Cu and Hg exceeded the threshold effect levels (TEL). Also, considering USEPA Sediment Quality Guidelines, the sediments were classified as non-polluted (Pb) and moderately polluted (Cu and Zn). Metal concentrations in the red mullet samples in both seasons were lower than limits on permissible levels, defined by the National and European legislation.

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Dissertations / Theses on the topic "Sediment quality guidelines"

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Yau, Hok-wai Horace. "The derivation of sediment quality guidelines for protecting marine ecosystems /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B34739464.

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Yau, Hok-wai Horace, and 丘學緯. "The derivation of sediment quality guidelines for protecting marine ecosystems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45013317.

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Chang, Yo-Ho. "Quantitative risk analysis : a tool for setting sediment quality guidelines." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395762.

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Buckley, David, and n/a. "Sediment quality guidelines for Australian waters : a framework for development and use." University of Canberra. Resource, Environmental & Heritage Sciences, 1997. http://erl.canberra.edu.au./public/adt-AUC20060619.163639.

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The Australian and New Zealand Environment and Conservation Council (ANZECC) and the Agriculture and Resource Management Council of Australia and New Zealand (ARMCANZ) have announced that the 1997 review of the Australian Water Quality Guidelines will include for the first time, consideration of sediment quality guidelines. For this reason, it is timely to review the methods for establishing such guidelines, and the manner in which they could be used in managing the quality of sediments in Australian rivers, lakes and drainage systems. In this thesis, the problem of the development of sediment quality guidelines is introduced and basic questions relating to the development of such guidelines are addressed. The importance of sediment monitoring and sediment quality assessment in aquatic ecosystem management is demonstrated, and the role of sediment quality guidelines in the process of sediment quality assessment is discussed. The arguments considered in this thesis are illustrated by specific reference to the setting and use of sediment quality guidelines for heavy metal contamination. A number of physico-chemical factors (grain size distribution, pH, redox potential, alkalinity and hardness, salinity, organic matter) can affect the bioavailability and toxicity of contaminants in sediments, and these factors may vary spatially and temporally within and between sediment deposits. Changes in physico-chemical conditions as a result of natural or anthropogenic processes may lead to major changes in bioavailability of sediment contaminants. The variability of these physico-chemical factors has ramifications for the way in which sediment quality guidelines are derived and used. Factors affecting the way in which toxicity is measured (test species chosen, toxicological end-point measured, duration of test relative to life-cycle), and toxicity data is interpreted, are also important to the development of useful sediment quality guidelines. All of these factors must be taken into account in deriving sediment quality guidelines for Australian conditions. The large number of factors affecting the sensitivity and efficiency of sediment quality guidelines means that a simple set of numerical guidelines, as has been used in the past, is not appropriate. A multi-step assessment procedure will be required. Methods of setting sediment quality guidelines that have been used by authorities in overseas jurisdictions were reviewed. Advantages and disadvantages of the various methods were compared. None of the methods used overseas has been shown to be applicable to Australian conditions. In the absence of a suitable method for deriving Australian sediment quality guidelines in the short term, the adoption of the Canadian Interim Sediment Quality Guidelines as interim sediment quality guidelines for Australia is recommended. Sediment quality guidelines need to be viewed in the context of the overall environmental management process, of which they form an integral part. The policy background to environmental management in Australia, and the management frameworks that have been put in place to implement the policy, are outlined. The AS/NZS/ISO 14000 series of standards for environmental management systems provides a framework which is consistent with the principles and objectives of environmental management in Australia. It therefore provides an appropriate framework within which to develop and use sediment quality guidelines. Within the broad AS/NZS/ISO 14000 policy, a framework for the development and use of sediment quality guidelines is proposed, which will provide a technically and legally defensible basis for the management of aquatic sediments in Australia, in the short term and long term. The proposed framework involves the setting of Interim Sediment Quality Guidelines for Australia, based on the best scientific knowledge currently available. The framework recognises that the factors affecting the bioavailability and toxicity of sediment contaminants are complex, and that the current level of knowledge of sediment processes is incomplete. Therefore, a conservative approach to setting guidelines is taken, and a highly sensitive guideline based on that used in Canada, is proposed. The framework further recognises that this approach will lead to over protection of the environment in some cases, so a "Decision Tree" approach is taken. The "decision tree" allows the consideration of more complex interactions than can be incorporated into simple numeric guidelines, while attempting to simplify the assessment process. In keeping with the ISO 14000 series of standards for environmental management, the framework also explicitly includes steps designed to ensure that monitoring data are regularly collated, and analysed, and where necessary, guidelines are able to be updated in light of new knowledge gleaned from the review process. The proposed framework is appropriate to, and supportive of, the principles of environmental management as set out in Australian Government policy documents, inter governmental and international agreements, and legislation. It provides a basis for the on-going collection of data suited to increasing our understanding of the factors influencing the behaviour of contaminants in sediments, and thereby lead to continual improvement in sediment quality guidelines for use in Australian conditions.

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Kwok, Wing-hin Kevin Patrick, and 郭穎軒. "On the derivation of Water and Sediment Quality Guidelines: some pressing issues and theirresolutions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42181963.

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Kwok, Wing-hin Kevin Patrick. "On the derivation of Water and Sediment Quality Guidelines : some pressing issues and their resolutions /." Click to view the E-thesis via HKUTO Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B2181963.

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Padial, Paula Regina. "Qualidade, heterogeneidade espacial ebiodisponibilidade de metais no sedimentode um reservatório tropical urbano eutrofizado (Reservatório Guarapiranga,SP)." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/41/41134/tde-18022009-134528/.

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Os sedimentos, pela sua capacidade de acumular compostos, têm grande importância na avaliação do nível de contaminação e poluição dos ecossistemas aquáticos continentais. Este trabalho tem como objetivo avaliar a qualidade do sedimento de um reservatório urbano (Reservatório Guarapiranga, SP, Brasil), quanto ao teor de metais fracamente ligados ao sedimento usando valores-guia de qualidade como parâmetro de comparação; e verificar a possível heterogeneidade dos metais contidos neste sedimento em um gradiente espacial horizontal. Foram amostrados onze pontos ao longo do eixo principal do Reservatório Guarapiranga, com a utilização de coletor tipo Ambhül e Bührer, em 05/10/2006 e 27/04/2007. As variáveis analisadas foram: matéria orgânica total, para cálculo do carbono orgânico total (COT); sulfeto volatilizável por acidificação (SVA), metais simultaneamente extraídos (MES), pH, EH, temperatura, oxigênio dissolvido, profundidade e granulometria. Pela relação molar (∑[MES] - [SVA])/ COT, critério de qualidade de sedimento estabelecido pela U.S.EPA, o sedimento não apresentou toxicidade provável à biota, ou seja, os metais presentes não estão biodisponíveis. As concentrações de SVA e de matéria orgânica encontradas no sedimento e as frações granulométricas silte e argila se mostraram como importantes fases complexadoras dos metais. Segundo os Valores-Guia de Qualidade de Sedimento, estabelecidos pelo Conselho Canadense do Ministério do Meio Ambiente (CCME), em outubro, a maioria dos pontos amostrados encontrou-se acima do intervalo com possíveis efeitos adversos à biota (PEL: Probable Effect Level), em relação a concentração de Cd, Cu e Ni; e em abril a maioria dos pontos amostrados apresentou concentrações acima de PEL para Cu e Cr. A maioria dos pontos amostrados teve concentrações dos metais Cd, Cu, Ni e Zn acima do Valor de Referência Regional (VRR) para sedimentos da Bacia do Rio Tietê, em outubro; e concentrações acima de VRR para Cd, Cu, Cr e Zn, em abril. Em relação à heterogeneidade espacial horizontal, pode-se dividir o reservatório em dois compartimentos, que diferem, de acordo com a PCA, quanto aos teores dos metais Cd e Cu e a profundidade, sendo a região com maiores concentrações de metais a que engloba a captação de água para abastecimento público. Os elevados teores de metais, apesar de este trabalho sugerir que não estão biodisponíveis, reforçam a necessidade do contínuo monitoramento não apenas da qualidade do sedimento, mas também da massa de água, principalmente por se tratar de um reservatório destinado ao abastecimento público para 20% da população da cidade de São Paulo.<br>Sediments are very important in assessing contamination and pollution level in continental aquatic ecosystems, because of their capacity of accumulating compounds. The objective of this project was to asses sediment quality of a tropical urban reservoir (Guarapiranga Reservoir, São Paulo State, Brazil), related to the level of weakly-bounded metals by using different sediment quality guidelines as reference; and to check possible space heterogeneity of these metals in a horizontal space gradient. Eleven sample stations along the main axis of Guarapiranga Reservoir were sampled by means of an Ambhül and Bührer collector, in October/05/2006 and April/27/2007. The variables analyzed were: total organic matter for calculation of the total organic carbon (TOC), acid volatile sulfide (AVS), simultaneously extracted metals (SEM), pH, EH, temperature, dissolved oxygen, depth and granulometry. According the molar relation (∑[SEM] - [AVS])/ TOC, sediment quality guidelines suggested by U.S.EPA, sediment did not show probable toxicity, in other words, metals were not bioavailable. The AVS, organic matter concentrations and clay silt percentiles showed be important phases of metal complexation, in sediment. According to sediment quality guidelines suggested by Canadian Council of Ministers of Environment (CCME), in October, most of sampling stations presented metal concentration above PEL (Probable Effect Level) for Cd, Cu and Ni; and in April, most of sampling stations presented concentration above PEL for Cu and Cr. Most of sampling stations presents Cd, Cu, Ni and Zn concentrations above the Regional Reference Values (RRV) for Tietê River Basin sediments, in October and concentrations above (RRV) for Cd, Cu, Cr and Zn, in April. In relation to space heterogeneity, the reservoir can be divided into two parts, which are different, according PCA, because of Cd and Cu concentrations and depth, being the region with higher concentrations that from where water is taken in for public supply. The high metal levels, eventhoug the present work indicates no- bioavailability, reinforce the necessity of continuous monitoring of sediment and water quality, especially due to the fact that this reservoir is used to supply 20% of the population from São Paulo city.

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Brady, James P. "Heavy metals in the sediments of Northern Moreton Bay, Queensland, Australia." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/89686/6/89686%28thesis%29.pdf.

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This project was the first comprehensive assessment of heavy metals to be conducted in the sediments of Northern Moreton Bay since the 1970s and found that shipping and shipping related activities contributed significantly to the level of sediment contamination in the area. The study was also used to develop and test new methods of assessing heavy metal sediment quality.

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Cervi, Eduardo Cimino. "Avaliação da qualidade de sedimentos do reservatório Billings-SP por meio de linhas de evidências químicas e ecotoxicológicas." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-29052017-155244/.

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O Complexo Billings é o maior reservatório de água da Região Metropolitana de São Paulo. Devido a sua importância estratégica e à degradação da qualidade de suas águas e sedimentos, a represa foi e continua sendo alvo de muitas pesquisas. No entanto, os valores-guia da qualidade de sedimentos (VGQS) adotados pelas normas nacionais vigentes, usualmente aplicados nestes estudos, baseiam-se na abordagem canadense Threshold Effect Level/Probable Effect Level (TEL/PEL), e sua interpretação quanto aos efeitos tóxicos podem divergir dos países que as originaram. O objetivo deste trabalho foi avaliar o potencial tóxico de contaminantes orgânicos e inorgânicos na água e nos sedimentos do reservatório Billings por meio da utilização de diferentes VGQS empíricos e teóricos e ensaios ecotoxicológicos. Uma abordagem multi-tarefas foi conduzida através de avaliações em campo e em laboratório envolvendo extensas caracterizações químicas, físicas e toxicológicas ao longo de dez pontos do reservatório. Em cada local, os parâmetros de qualidade da água superficial foram monitorados in situ. Amostras de sedimento integral, água intersticial e superficial foram coletadas para a avaliação das propriedades físicas e químicas nestes locais, como granulometria e carbono orgânico total (COT). Os teores de sulfetos volatilizáveis por acidificação (SVA) e os metais extraídos simultaneamente (MES) foram obtidos nas amostras de sedimento integral, assim como as concentrações totais de metais (Cd, Cr, Cu, Fe, Mn, Ni, Pb e Zn) e contaminantes orgânicos (pesticidas organoclorados e hidrocarbonetos aromáticos polinucleares). Os contaminantes foram então comparados a diferentes linhas de evidências (LDE), dentre elas VGQS empíricos (TEL/PEL, LEL/SEL e VRR), VGQS baseados na teoria do Equilíbrio de Partição (EqP) e ensaios ecotoxicológicos com as espécies Daphnia magna e Hyalella azteca em água superficial e sedimento integral, respectivamente. As concentrações de metais nas águas superficial e intersticial do reservatório foram relativamente baixas e ausentes de efeitos crônicos ou agudos pelos ensaios ecotoxicológicos. Os teores de SVA foram superiores aos de MES quando normatizados pela fração COT. Embora a LDE baseada em EqP tenha sugerido a ausência de toxicidade nos sedimentos do reservatório Billings, a mesma ocorreu nos pontos Braço do Rio Grande e Barragem de Pedreira. Os resultados dos ensaios ecotoxicológicos demonstraram efeitos agudos para Hyalella azteca, com sobrevivência dos organismos de 32,5 ± 6,57% e 45 ± 5,77% nos pontos Braço do Rio Grande e Barragem de Pedreira, respectivamente. Efeitos crônicos também foram observados para a espécie H. azteca em ambos os pontos. Os valores de biomassa individuais dos anfípodas foram afetadas quando comparadas ao Controle (0,072 ± 0,01 mg), com valores de 0,032 ± 0,01 mg e 0,031 ± 0,01 mg no Braço do Rio Grande e Barragem de Pedreira, respectivamente. A utilização dos VGQS empíricos TEL/PEL e os Valores de Referência Regionais demonstraram ser eficazes para predição de efeitos tóxicos, visto que as concentrações dos metais Cu, Cr, Ni, e Zn presentes nos sedimentos superaram o limiar PEL em vários pontos do reservatório, indicando uma alta probabilidade de efeitos adversos à biota, comprovada pelos ensaios ecotoxicológicos. As concentrações dos pesticidas organoclorados mirex e DDT encontram-se acima de TEL, enquanto o DDE, mais persistente, demonstrou uma alta probabilidade de ocorrência de efeitos tóxicos (acima de PEL). Embora o EqP não tenha sido eficaz na predição dos efeitos tóxicos, foi imprescindível para compreender a dinâmica dos metais no reservatório, visto que os elevados teores de sulfetos e COT demonstram ser os responsáveis pelo equilíbrio dos metais neste ambiente. Dessa forma, a combinação de VGQS empíricos e teóricos pode - de maneira não regulatória - ser considerada uma solução efetiva e de baixo-custo para a tomada de decisão sobre locais passivos de contaminação.<br>The Billings Complex is the largest water-storage facility in the São Paulo Metropolitan Region. Due to its strategic importance and the deterioration in its water quality over time, the Billings reservoir was and remains subject of many researches. However, the sediment quality guidelines (SQGs) adopted in Brazil and usually applied in these studies are based on the Canadian Threshold Effect Level/Probable Effect Level (TEL/PEL) and may not suitably predict ecotoxicological effects. The aim of this study was to evaluate the toxicity of organic and inorganic compounds in the overlying water, pore water and bedded sediments of the Billings reservoir through several SQGs and toxicological tests. A laboratory and field assessment was conducted involving extensive physical, chemical, and toxicological characterizations within ten stations of the Billings reservoir. At each sampling station, water quality parameters (pH, redox, DO, conductivity, turbidity, and temperature) were measured in depth (intervals of 1 meter). Bedded surface sediment, sediment pore water, and overlying water were collected to assess the physical and chemical properties at these sites, such as particle size and total organic carbon (TOC). Sediment samples were analyzed for acid volatile sulfides (AVS) and simultaneously extractable metals (SEM), total metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) and organic contaminants (organochlorine pesticides and semivolatile organic compounds). Empirical (TEL/PEL, RRV, and LEL/SEL) and mechanistic (AVS/SEM) SQGs approaches were applied and compared with 10-d toxicity tests with Daphnia magna and Hyalella azteca for overlying water and bedded sediment, respectively. Metals in the overlying and pore water were at a relatively low concentrations and absent of chronic or acute effects. AVS concentrations was greater then SEM in every station of the reservoir, therefore suggesting the absence of toxicity. However, Hyalella azteca post-exposure survival was affected in both Rio Grande branch and Pedreira Dam stations (32,5 ± 6,57% and 45 ± 5,77%, respectively). Relative growth rates were also affected in both Rio Grande branch and Pedreira Dam stations (0,032 ± 0,01 mg and 0,031 ± 0,01 mg) when compared to Control (0,072 ± 0,01 mg). Empirical (TEL/PEL, RRV, and LEL/SEL) guidelines were more suitable for toxicity prediction. Several stations exhibit metal concentrations for Cu, Cr, Ni, and Zn higher than the Canadian PEL adopted in Brazil. Organic compounds such as mirex and DDT were above TEL. Persistent DDT metabolite p,p\'-DDE were above PEL in both Rio Grande branch and Pedreira Dam stations. Although EqP was not suitable for toxicity prediction, it was important for understanding the role of sulfides and TOC for metal contamination in the reservoir. Therefore, the adoption of both empirically and mechanistic SQGs for sediment quality assessments can provide a more accurate and low cost alternative for sediment management decisions.

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Santos, Izaias Souza dos. "Geoquímica e distribuição dos metais traço em testemunhos de sedimento do açude Marcela, Itabaiana - Sergipe." Universidade Federal de Sergipe, 2010. https://ri.ufs.br/handle/riufs/6127.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>This study addresses the distribution of trace metals in sediment cores from the dam Marcela in order to evaluate the occurrence of impacts associated with human and industrial activity. The dam is located in the city Itabaiana in the state of Sergipe, it was built in the period 1953 - 1957 barring Fuzil stream. It has an area of 1.4 km2 with storage capacity of 2,700,000 m3. Two sediment cores were collected in November of 2008 with approximately 45cm in two distinct points. The samples were sectioned in 5 cm each and they were analyzed by to determine the following chemical elements: Co, Cr, Cu, Ni, Pb, Zn, Mn, Al, Fe, Corg and Ntotal. The average value of Corg/Ntotal in the range 4,97- 7,64 and 6,39-7,69, for cores I and II respectively, indicative autochthonous and allochthonous origin of the organic matter. The multivariate statistical analysis (Principal component analysis) applied to the set of results showed that the two cores in relation to concentrations of metals are different, with evidence of enrichment for Cr, Cu, Mn and Zn in the surface layers. The contamination factor calculed showed contamination moderate level for metals Cr, Cu, Mn and Zn. The risk assessment code (RAC), which consider the percentage of metal extracted in the label fraction (F1) of BCR procedure, showed that chromium does not present risk to the environment, copper, nickel and lead were low to medium risk, and zinc had of very high to High risk to the aquatic environment. Small variations in environmental conditions, such as pH or salinity, could therefore increase availability of the elements to the aquatic system. The metals concentrations were always at the lower limit the TEC and PEC, defined by consensual sediment quality guidelines (SQGs), in this case, it is not possible to predict what adverse effects the metal can cause in this environment.<br>Neste trabalho foi determinada a distribuição de metais traço em testemunhos de sedimento do Açude Marcela com o objetivo de avaliar a ocorrência de impactos associados à atividade humana e industrial, desenvolvidas naquela região. O Açude Marcela localiza-se na cidade de Itabaiana Sergipe, foi construído no período 1953 à 1957 pelo barramento do riacho Fuzil e tem uma área de 1,4km2 , com capacidade de armazenamento de 2.700.000 m3. Foram coletados em novembro de 2008 dois testemunhos de sedimentos com aproximadamente 45cm de profundidade em dois pontos distintos do açude. Os testemunhos foram secionados a cada 5cm para determinação dos seguintes elementos químicos: Co, Cr, Cu, Ni, Pb, Zn, Mn, Al, Fe, Corg e Ntotal. A relação Corg/Ntotal variou de 4,97-7,64 e 6,39-7,69 para os testemunhos I e II, respectivamente, indicando origem autóctone e alóctone para a matéria orgânica presente no sedimento. A análise estatística multivariada (análise de componentes principais-ACP), aplicada ao conjunto dos resultados, mostrou que os dois testemunhos, em relação às concentrações dos metais, são estatisticamente diferentes, com evidências de enriquecimento por Cr, Cu, Mn e Zn, nas camadas mais superficiais. O fator de contaminação calculado mostrou um nível de contaminação moderado para os metais Cr, Cu, Mn e Zn. O Fator de Risco (RAC), que compreende a percentagem do metal extraída na fração lábil (F1) do procedimento (BCR) empregado, indicou que o cromo não apresentou risco ao ambiente. Cobre, níquel e chumbo apresentaram risco baixo a médio, e zinco apresentou risco alto a altíssimo para o ambiente aquático. Sendo assim, pequenas variações nas condições ambientais podem remobilizar esses elementos do sedimento para a coluna d água. As concentrações dos metais nos testemunhos estiveram entre TEC e o PEC, definidos pelos valores guias de qualidade de sedimento consensual (VGQS), indicando que, nas condições atuais, o sedimento pode exercer efeito adverso aos organismos do açude em questão.

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Books on the topic "Sediment quality guidelines"

1

J, Wenning R., and SETAC (Society), eds. Use of sediment quality guidelines and related tools for the assessment of contaminated sediments. SETAC Press, 2005.

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Hayton, A. Fill quality guidelines for lakefilling in Ontario: Application of sediment and water quality guidelines to lakefilling : report. Water Resources Branch, Ontario Ministry of the Environment, 1992.

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Knott, J. M. Quality assurance guidelines for the analysis of sediment concentration by U.S. Geological Survey sediment laboratories. U.S. Dept. of the Interior, U.S. Geological Survey, 1992.

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Knott, J. M. Quality assurance guidelines for the analysis of sediment concentration by U.S. Geological Survey sediment laboratories. U.S. Dept. of the Interior, U.S. Geological Survey, 1992.

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Knott, J. M. Quality assurance guidelines for the analysis of sediment concentration by U.S. Geological Survey sediment laboratories. U.S. Dept. of the Interior, U.S. Geological Survey, 1992.

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Persaud, D. Guidelines for the protection and management of aquatic sediment quality in Ontario: Report. Water Resources Branch, Ontario Ministry of the Environment, 1992.

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Jaagumagi, R. Development of the Ontario Provincial Sediment Quality Guidelines for Polycyclic Aromatic Hydrocarbons (PAH): Report. Ontario Ministry of Environment and Energy, 1994.

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Jaagumagi, R. Development of the Ontario provincial sediment quality guidelines for PCB's and the organochlorine pesticides: Draft. Water Resources Branch, 1990.

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Jaagumagi, R. Development of the Ontario provincial sediment quality guidelines for PCBS and the organochlorine pesticides: Report. Water Resources Branch, Ontario Ministry of the Environment, 1992.

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Jaagumagi, R. Development of the Ontario provincial sediment quality guidelines for arsenic, cadmium, chromium, copper, iron, lead, manganese, mercury, nickel and zinc: Draft. Water Resources Branch, 1990.

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Book chapters on the topic "Sediment quality guidelines"

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Batley, Graeme E., and Stuart Simpson. "Sediment Quality Guidelines." In Encyclopedia of Aquatic Ecotoxicology. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5704-2_92.

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Nowell, L. H., and E. A. Resek. "National Standards and Guidelines for Pesticides in Water, Sediment, and Aquatic Organisms: Application to Water-Quality Assessments." In Reviews of Environmental Contamination and Toxicology. Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-2680-2_1.

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Scrimshaw, M. D., T. A. DelValls, J. Blasco, and P. M. Chapman. "Sediment Quality Guidelines and Weight of Evidence Assessments." In Sustainable Management of Sediment Resources. Elsevier, 2007. http://dx.doi.org/10.1016/s1872-1990(07)80080-8.

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"Prediction of Sediment Toxicity Using Consensus Based Freshwater Sediment Quality Guidelines." In Sediments Contamination and Sustainable Remediation. CRC Press, 2009. http://dx.doi.org/10.1201/9781420062236-ac.

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"Sediment Quality Guidelines from Environment Canada and MDDEP, 2008." In Sediments Contamination and Sustainable Remediation. CRC Press, 2009. http://dx.doi.org/10.1201/9781420062236-aa.

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Gaudet, Connie, Doug Bright, Kathie Adare, and Kelly Potter. "A Rank-Based Approach to Deriving Canadian Soil and Sediment Quality Guidelines." In Environmental and Ecological Risk Assessment. CRC Press, 2001. http://dx.doi.org/10.1201/9781420032314.ch13.

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Salome Mthombeni, Tinyiko. "The Evaluation of the Macrophyte Species in the Accumulation of Selected Elements from the Varkenslaagte Drainage Line in the West Wits, Johannesburg South Africa." In Environmental Sciences. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105708.

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Although mining has over the centuries improved the livelihoods and economies of many countries, the results have not spared the environment’s luxurious legacy. Acid mine drainage contaminated sites with heavy metals that affect negatively and positively the macrophytes plants that grow on those sites. Accumulated elements by macrophytes planted on artificial wetlands portray the relative bioconcentration and translocation factors. Various elements were measured in the sediment, water, and macrophytes from the sampled sites and the results indicate that concentrations accumulated by plants play a significant role in biological and chemical processes in soil-water-plant relations. When comparing the drinking water quality standards by international organizations that were used as a guideline for the comparisons of elements concentration levels of elements found in water, Iron (Fe), Nickel (Ni), Manganese (Mn), and Copper (Cu) were found to be above the international water quality standards for drinking water and their average concentrations were 2230, 282, 5950, and 14,080 μg/l respectively. The sequence of elements accumulation by the macrophytes differed per plant and each of the three macrophytes plants was a hyperaccumulator of a certain element.

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Conference papers on the topic "Sediment quality guidelines"

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Abdulla, Maryam Abdulali. "Assessment of TPHs and PAHs in the Marine Sediment Relating to Oil and Gas Extraction activity on the western coastline of Qatar." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0013.

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Total petroleum hydrocarbons (TPHs) and Polycyclic aromatic hydrocarbons (PAHs) are priority pollutants which are known to be associated with petroleum products. They are released into the marine environment via accidental spillage, exploration and transportation. The present study aims to assess the impact of petroleum and gas extraction activities on the pollution of coastal marine sediment of the western coastline of Qatar. Sixty-six surface sediment samples were collected along the western coastal area. The concentration of organic hydrocarbons (TPHs and PAHs) were determined using GC-FID and GC-MS, respectively. Sediment characteristics including pH, temperature, TOC and particle size were also measured. The results indicated low concentrations of TPH (<0.001-0.246 μg/g dry weight sediment) and PAHs (<0.001-0.044 μg/g dry weight sediment). The concentrations for both organic pollutants were lower compared to the previous studies done within Qatar and in the Arabian Gulf and also indicated below the available permissible limit set by the Ministry of Municipality and Environment of Qatar and other sediment quality guidelines (SQGs) used worldwide (NOAA).

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Abdulla, Maryam Abdulali, and Azenith Castillo. "Origin of TPHs and PAHs in Marine Sediment nearby Oil and Gas Extraction Sites on the West Coast of Qatar." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0022.

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Total Petroleum Hydrocarbons (TPHs) and Polycyclic Aromatic Hydrocarbons (PAHs) are priority pollutants, which are known to be associated with petroleum products. They are released into the marine environment via accidental spillage, exploration and transportation. The present study aims to investigate the type, origin and weathering of petroleum in the coastal marine sediment of the western coastline of Qatar. Sixty-six surface sediment samples were collected along the western coastal area. The concentrations of organic hydrocarbons (TPHs and PAHs) were determined using GC-FID and GC-MS, respectively. Sediment characteristics including pH, temperature, TOC and particle size were also measured. The results indicated low concentrations of TPH (<0.001-0.246 µg/g dry weight sediment) and PAHs (<0.001-0.044 µg/g dry weight sediment). The concentrations for both organic pollutants were lower compared to the previous studies done within Qatar and in the Arabian Gulf and also indicated below the available permissible limit set by the Ministry of Municipality and Environment of Qatar and other Sediment Quality Guidelines (SQGs) used worldwide (NOAA). Pollution concentration profile is site specific where concentrations are high within the proximity of the source and derived from both direct inputs of petrogenic and pyrogenic contribution.

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Reports on the topic "Sediment quality guidelines"

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Peddicord, Richard K., C. R. Lee, and Robert M. Engler. Use of Sediment Quality Guidelines (SQGs) in Dredged Material Management. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada350765.

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Bourdeau, J. E., and R. D. Dyer. Regional-scale lake-sediment sampling and analytical protocols with examples from the Geological Survey of Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331911.

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Regional-scale lake sediment surveys have been successfully used since the 1970s as a means for reconnaissance geochemical exploration. Lake sediment sampling is typically performed in areas with a lack of streams and an overabundance of small-sized (=5 km across) lakes. Lake sediments are known to have major, minor and trace element concentrations that reflect the local geology. Overall, lake sediment surveys are planned and conducted following four distinct stages: 1) background research, 2) orientation survey, 3) regional survey, and 4) detailed survey. At the Geological Survey of Canada, samples are usually collected from a helicopter with floats. Sample density ranges from 1 sample per 6 - 13 km2. Samples are collected from the centre of the lake using a gravity torpedo sampler which corresponds to a hollow-pipe, butterfly bottom-valved sampler attached by a rope to the helicopter. Collected sediment samples are then placed in labelled bags and left to air dry. Detailed field notes and additional samples (field duplicates), for the purpose of an adequate quality assurance and quality control program, are also taken. Samples are then milled and sent to analytical laboratories for element determination. Commonly used analytical methods include: X-ray fluorescence (XRF), atomic absorption spectroscopy (AAS), inductively coupled plasma-atomic emission spectrometry (ICP-AES) and -mass spectrometry (ICP-MS), instrumental neutron activation analysis (INAA), and/or determination of volatile compounds and organic carbon using Loss on Ignition (LOI). Analytical data is first evaluated for quality (contamination, accuracy and precision). Numerous options for the analysis of lake sediment data exist, ranging from simple basic element concentration maps and statistical graphical displays together with summary statistics, to employing multivariate methodologies, and, more recently, using machine learning algorithms. By adopting the set of guidelines and examples presented in this manual, scientific researchers, exploration geologists, geochemists and citizen scientists will be able to directly compare lake sediment datasets from anywhere in Canada.

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Joint Environmental Monitoring Programme at Two Mekong Mainstream Dams: The Don Sahong and Xayaburi Hydropower Projects. Mekong River Commission Secretariat, 2022. http://dx.doi.org/10.52107/mrc.aqrs7o.

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The report provides an overview of activities conducted and resulting recommendations from monitoring two mainstream dams: Don Sahong and Xayaburi hydropower projects. It summarizes the pilot monitoring results from the first pilot site report for each hydropower project and the Combined Annual Report in a way that illustrates how findings in hydrology, sediment, water quality, aquatic ecology, and fisheries can be interpreted together. Based on the findings, it provides some initial suggestions for mitigation and adaptive management of construction and operation of hydropower projects. It also concludes with recommendations for revisions to the guidelines and monitoring protocols that can then be incorporated into the JEM Programme document.

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