Data on sediment quality and concentrations of polychlorinated biphenyls from the Lower Neponset River, Massachusetts, 2002-03

2004 ◽  
Author(s):  
Robert F. Breault ◽  
Matthew G. Cooke ◽  
Michael Merrill
Keyword(s):  
Polychlorinated Biphenyls ◽  
Sediment Quality

scholarly journals Polychlorinated biphenyls and organochlorine pesticides in water and sediment from Volturno River, Southern Italy: occurrence, distribution and risk assessment

2020 ◽  
Vol 32 (1) ◽  
Author(s):  
Paolo Montuori ◽  
Elvira De Rosa ◽  
Pasquale Sarnacchiaro ◽  
Fabiana Di Duca ◽  
Donatella Paola Provvisiero ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Mediterranean Sea ◽  
Organochlorine Pesticides ◽  
Risk Index ◽  
Sediment Quality ◽  
Tyrrhenian Sea ◽  
Central Mediterranean ◽  
Sediment Samples ◽  
Central Mediterranean Sea ◽  
Volturno River

Abstract Background To assess the Volturno River pollution and its environmental impact on the Tyrrhenian Sea (Central Mediterranean Sea) caused by Polychlorinated biphenyls (PCBs) and Organochlorine pesticides (OCPs), 32 PCBs and aldrin, α-BHC, β-BHC, δ-BHC, γ-BHC (lindane), 4,4′- DDD, 4,4′-DDE, 4,4′-DDT, dieldrin, endosulfan I, endosulfan II, endosulfan sulphate, endrin, heptachlor, heptachlor epoxide (isomer B) and methoxychlor have been selected and were analyzed in three different phases: dissolved phase (DP), suspended particulate matter (SPM) and sediments. PCBs and OCPs were extracted using an SPE column for the DP and glass fiber filter for SPM and sediment samples. Cleaned extracts were analyzed by gas chromatography with electron capture detector (ECD) and mass spectrometry (MS) detector for PCBs and OCPs, respectively. Results Pollutants discharges of PCBs and OCPs into the sea were calculated in about 106.9 kg year−1 (87.1 kg year−1 of PCBs and 19.7 kg year−1 of OCPs), showing that this river could be a major source of PCBs and OCPs pollution to the Central Mediterranean Sea. Total concentrations of PCBs ranged from 4.1 to 48.0 ng L−1 in water (sum of DP and SPM) and from 4.3 to 64.3 ng g−1 in sediment samples. The concentrations of total organochlorine pesticides (OCPs) obtained in water (sum of DP and SPM) ranged from 0.93 to 8.66 ng L−1 and from 0.52 to 9.89 ng g−1 in sediment samples. Principal component analysis shows that all PCB compounds are more likely to come from surface runoff than an atmospheric deposition. Conclusion The data show that higher levels of PCBs and OCPs were found in sediment samples than in DP and SPM samples, which are an indication of no fresh inputs of these compounds. Based on our results, unintentionally produced PCBs by industrial processes (and other processes) were considered to be the main sources of PCBs in Volturno River and Estuary sediments. Considering the Sediment Quality Guidelines (SQGs), the Ecological Risk Index (ERI), the Risk Quotient (RQ) and the USEPA Environmental Quality Standards (EQS), the Volturno River and its Estuary would be considered an area in which the integrity is possibly at risk.

Estimating sediment quality thresholds to prevent restrictions on fish consumption: Application to polychlorinated biphenyls and dioxins-furans in the Canadian Great Lakes

2010 ◽  
Vol 6 (4) ◽  
pp. 641-652 ◽  
Author(s):  
Satyendra P Bhavsar ◽  
Sarah B Gewurtz ◽  
Paul A Helm ◽  
Tanya L Labencki ◽  
Christopher H Marvin ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Great Lakes ◽  
Fish Consumption ◽  
Sediment Quality

scholarly journals Danube sediment contamination with polychlorinated biphenyls: New interpretation of sediment quality assessment

2019 ◽  
pp. 43-50
Author(s):  
Maja Brboric ◽  
Borivoj Stepanov ◽  
Jelena Radonic ◽  
Maja Turk-Sekulic
Keyword(s):  
Polychlorinated Biphenyls ◽  
Sampling Site ◽  
Sediment Quality ◽  
Hierarchical Cluster ◽  
Multivariate Techniques ◽  
Clustering Methods ◽  
Environmental Matrices ◽  
Data Set ◽  
Local Pollution ◽  
New Interpretation

Among the contaminants of greatest concern, it is still possible to detect in aquatic systems "old" classics such as polychlorinated biphenyls (PCBs). Since PCBs are detected in all environmental matrices and have been identified as harmful substances due to their toxicity, persistence, and bioaccumulation in humans and wildlife, they are still one of the important groups of POPs. For this reason, this original approach studies the toxicological influence of PCBs, quantified in sediment samples collected at ten sites along the river Danube, by an application of advanced classification and clustering methods such as hierarchical cluster analysis (HCA) and Kohonen's self-organising maps (SOMs). Selected multivariate techniques were applied to the monitoring dataset in order to obtain visual images of the components distributed at each sampling site when all components are included in the classification and data projection procedure. After analyzing the data set using both techniques were isolated groups that exhibit similar behavior. In the hexagon and dendogram of variables three main clusters were distinguished. Towards the identification of pollutant spatial patterns, the SOM did not isolate a clear phenomenon probably due to the absence of local pollution sources contributing to the elevated concentrations of these compounds. The presented assumptions indicated that the supplemental application of SOM and HCA offers advantageous features over the usually rough interpretation of PCBs pattern and over the single use of the methods.

scholarly journals Seasonal Distributions, and Risk Assessment of Polychlorinated Biphenyls (PCBs) in the Surficial Sediments from the Turag River, Dhaka, Bangladesh

2021 ◽  
Author(s):  
Nushrat Jahan Chowdhury ◽  
Mashura Shammi ◽  
Md. Mostafizur Rahman ◽  
Md. Ahedul Akbar ◽  
Md. Khabir Uddin
Keyword(s):  
Risk Assessment ◽  
Polychlorinated Biphenyls ◽  
Potential Risk ◽  
Surface Sediments ◽  
Biological Effects ◽  
Sediment Quality ◽  
Sediment Quality Guideline ◽  
Post Monsoon ◽  
Quality Guideline ◽  
Effect Level

Abstract Polychlorinated biphenyls (PCBs) assessment in sediments of Turag River, Dhaka, Bangladesh has been conducted for the first time. This River provides critical ecological services to agriculture, industry, and transportation. However, the Turag River is one of the most industrially polluted rivers surrounding Dhaka in Bangladesh. In this study, six PCB congeners namely PCB 10, PCB 28, PCB 52, PCB 138, PCB 153, and PCB 180, were analyzed in surface sediments by GC-ECD at 9 sampling sites. Pre-monsoon and post-monsoon season sampling were collected in this study. The total concentrations of PCBs varied from 344.49 to 0.22 ng/g dw and 10.6 to 1.68 ng/g dw in pre-monsoon and post-monsoon, respectively. The paramount contributor congener to the total PCBs was PCB 180 and was found at all sites. The ecological risk assessment indicated a high potential risk in pre-monsoon (Eri = 277.32) and low potential risk in post-monsoon (Eri = 25.69). Sediment quality guideline quotients (SQGQs) showed that PCBs in pre-monsoon would cause no or moderate biological effects on organisms at most sampling sites except in surface sediments of site S5 (high biological effects), while no adverse ecotoxicological effect was observed in post-monsoon. Considering both probable effect level (PEL) and threshold effect level (TEL), the new sediment quality guideline quotient (NSQGQ) showed that in post-monsoon PCBs contamination would cause moderate biological effects, while in pre-monsoon the findings remained consistent with the findings of SQGQ. This study gave a quick look at the PCB contamination scenario in the Turag River sediments and also allowed for a comparison between the investigated River and other rivers worldwide.

Pesticide and non-dioxin-like polychlorinated biphenyls (NDL-PCBs) residues in foodstuffs from Ismailia city, Egypt

2008 ◽  
pp. 1-9 ◽  
Author(s):  
N. Loutfy ◽  
M. Fuerhacker ◽  
C. Lesueur ◽  
M. Gartner ◽  
M. Tawfic Ahmed ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls

Fatty Liver and Impaired Hepatic Metabolism Alters the Congener-Specific Distribution of Polychlorinated Biphenyls (PCBs) in Mice with a Liver-Specific Deletion of Cytochrome P450 Reductase

2020 ◽  
Author(s):  
Xueshu Li ◽  
Chun-Yun Zhang ◽  
Hans-Joachim Lehmler
Keyword(s):  
Cytochrome P450 ◽  
Polychlorinated Biphenyls ◽  
Fatty Liver ◽  
Partition Coefficients ◽  
Hepatic Metabolism ◽  
Gas Chromatography Mass Spectrometry ◽  
Cytochrome P450 Reductase ◽  
P450 Reductase ◽  
Specific Distribution ◽  
Specific Deletion

Polychlorinated biphenyls (PCBs) are persistent organic pollutants that are linked to adverse health outcomes. PCB tissue levels are determinants of PCB toxicity; however, it is unclear how factors, such as an altered metabolism and/or a fatty liver, affect PCB distribution in vivo. We determined the congener-specific disposition of PCBs in mice with a liver specific deletion of cytochrome P450 reductase (KO), a model of fatty liver with impaired hepatic metabolism, and wildtype (WT) mice. Male and female KO and WT mice were exposed orally to Aroclor 1254, a technical PCB mixture. PCBs were quantified in adipose, blood, brain and liver tissues by gas chromatography-mass spectrometry. PCB profiles and levels in tissues were genotype and sex dependent. PCB levels were higher in the liver from KO compared to WT mice. PCB profiles showed clear differences between tissues from the same exposure group. While experimental tissue : blood partition coefficients in KO and WT mice did not follow the trends predicted using a composition-based model, the agreement between experimental and calculated partition coefficients was still reasonable. Thus, a fatty liver and/or an impaired hepatic metabolism alter the distribution of PCBs in mice and the magnitude of the partitioning of PCBs from blood into tissues can be approximated using composition-based models.<br>

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