Spatial distribution and bioaccumulation of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in snails (Bellamya aeruginosa) and sediments from Taihu Lake area, China

Yin, Geping; Zhou, Yihui; Strid, Anna; Zheng, Ziye; Bignert, Anders; T, Ma; Athanassiadis, Ioannis; Qiu, Yanling

doi:10.1007/s11356-017-8467-x

Cited by 44 publications

(11 citation statements)

References 59 publications

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“…72 Outros estudos também têm confirmado o papel dos sedimentos aquáticos na disponibilidade de contaminantes para cadeias tróficas aquáticas, notadamente na comunidade bêntica. [78][79][80][81] Na Figura 3, esses processos, representados pela rota 11, são mediados por organismos menores que compõem essa cadeia como crustáceos, moluscos, vermes, insetos e outros.…”

Section: Presença E Comportamento No Ambienteunclassified

Éteres Difenílicos Polibromados (Pbde) Como Contaminantes Persistentes: Ocorrência, Comportamento No Ambiente E Estratégias Analíticas

Annunciação¹,

Almeida²,

Hara³

et al. 2018

Quim. Nova

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Flame retardants are substances mixed with numerous materials to inhibit the combustion process, reducing risks and damages caused by fires. Among these substances, polybrominated diphenyl ethers (PBDEs) have been widely used for decades due to their low cost and high efficiency. However, since they are mixed and not chemically bonded to the materials, PBDEs can be released over time being transported through numerous pathways until they reach soils and aquatic systems, where they can accumulate in sediments and biota. Due to their high chemical stability, an essential feature for flame retardants, they are considered persistent contaminants. Several studies report the presence of PBDEs in atmospheric and aquatic particulate matter, sediments, soils and biological matrices such as marine animals, tissues and human fluids. In Brazil, little is known about the use and commercialization of PBDEs, as well as their levels in different environmental compartments. Thus, this review provides an overview of the origin of PBDEs in the environment as well as information inherent to the understanding of the behavior and presence of this contaminants of recent interest in different environmental compartments. Finally, the manuscript also brings state-of-the-art analytical approaches used for environmental sampling, preservation, preparation and sample analysis.

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Section: Presença E Comportamento No Ambienteunclassified

Éteres Difenílicos Polibromados (Pbde) Como Contaminantes Persistentes: Ocorrência, Comportamento No Ambiente E Estratégias Analíticas

Annunciação¹,

Almeida²,

Hara³

et al. 2018

Quim. Nova

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“…Detection of contaminants in biota proves their bioavailability and bioaccumulation potential (Mackay et al 2011;Yin et al 2017). Mollusks such as snails and mussels are particularly suitable as passive samplers due to their low metabolization competence (Nhan et al 2001;Oehlmann and Schulte-Oehlmann 2003).…”

Section: Introductionmentioning

confidence: 99%

Multi-compartment chemical characterization and risk assessment of chemicals of emerging concern in freshwater systems of western Kenya

Kandie

Krauß

Massei

et al. 2020

Preprint

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Background Within the last decades, there has been increasing research on the occurrence of chemicals of emerging concern (CECs) in aquatic ecosystems due to their potential adverse effects on freshwater organisms and risk to human health. However, information on CECs in freshwater environments in sub-Saharan countries is very limited. Here, we investigated the occurrence of CECs in snails and sediments collected from 48 sites within the Lake Victoria South Basin, Kenya, which have been previously investigated for water contamination. Samples were analyzed by liquid chromatography coupled to high resolution mass spectrometry (LC-HRMS) with a target list of 429 compounds. Results In total, 30 compounds have been detected in snails and 78 in sediment samples, compared to 79 previously identified compounds in water. By extending the monitoring of CECs to snails and sediments, we found 68 compounds that were not previously detected in water. These compounds include the anti-cancer drug anastrozole, detected for the first time in the Kenyan environment. Individual compound concentrations were detected up to 480 ng/g wet weight (N-ethyl-o-toluenesulfonamide) in snails and 110 ng/g organic carbon (pirimiphos-methyl) in sediments. Higher contaminant concentrations were found in agricultural sites than in areas not impacted by anthropogenic activities. Crustaceans were the organisms at greatest toxic risk from sediment contamination (toxic unit (TU) up to 0.99) with diazinon and pirimiphos-methyl driving this risk. Acute and chronic risks to algae were driven by diuron (TU up to 0.24), whereas fish were found to be at low to no acute risk (TU up to 0.007). Conclusions The compound classes present at highest frequencies in all matrices were pesticides and biocides. This study shows substantial contamination of surface water in rural western Kenya. By filling data gaps on contamination of sediments and aquatic biota, our study reveals that CECs pose a substantial risk on environmental health in Kenya demanding for monitoring and mitigation.

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Section: Introductionmentioning

confidence: 99%

Multi-compartment chemical characterization and risk assessment of chemicals of emerging concern in freshwater systems of western Kenya

Kandie

Krauß

Massei

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Within the last decades, there has been increasing research on the occurrence of chemicals of emerging concern (CECs) in aquatic ecosystems due to their potential adverse effects on freshwater organisms and risk to human health. However, information on CECs in freshwater environments in sub-Saharan countries is very limited. Here, we investigated the occurrence of CECs in snails and sediments collected from 48 sites within the Lake Victoria South Basin, Kenya, which have been previously investigated for water contamination. Samples were analyzed by liquid chromatography coupled to high resolution mass spectrometry (LC-HRMS) with a target list of 429 compounds. Results: In total, 30 compounds have been detected in snails and 78 in sediment samples, compared to 79 previously identified compounds in water. By extending the monitoring of CECs to snails and sediments, we found 68 compounds that were not previously detected in water. These compounds include the anti-cancer drug anastrozole, detected for the first time in the Kenyan environment. Individual compound concentrations were detected up to 480 ng/g wet weight (N-ethyl-o-toluenesulfonamide) in snails and 110 ng/g organic carbon (pirimiphos-methyl) in sediments. Higher contaminant concentrations were found in agricultural sites than in areas not impacted by anthropogenic activities. Crustaceans were the organisms at greatest toxic risk from sediment contamination (toxic unit (TU) up to 0.99) with diazinon and pirimiphos-methyl driving this risk. Acute and chronic risks to algae were driven by diuron (TU up to 0.24), whereas fish were found to be at low to no acute risk (TU up to 0.007). Conclusions: The compound classes present at highest frequencies in all matrices were pesticides and biocides. This study shows substantial contamination of surface water in rural western Kenya. By filling data gaps on contamination of sediments and aquatic biota, our study reveals that CECs pose a substantial risk on environmental health in Kenya demanding for monitoring and mitigation.

show abstract

Spatial distribution and bioaccumulation of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in snails (Bellamya aeruginosa) and sediments from Taihu Lake area, China

Cited by 44 publications

References 59 publications

Éteres Difenílicos Polibromados (Pbde) Como Contaminantes Persistentes: Ocorrência, Comportamento No Ambiente E Estratégias Analíticas

Éteres Difenílicos Polibromados (Pbde) Como Contaminantes Persistentes: Ocorrência, Comportamento No Ambiente E Estratégias Analíticas

Multi-compartment chemical characterization and risk assessment of chemicals of emerging concern in freshwater systems of western Kenya

Multi-compartment chemical characterization and risk assessment of chemicals of emerging concern in freshwater systems of western Kenya

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