منابع مشابه
CONGENER-SPECIFIC BIOACCUMULATION OF PCBs IN DIFFERENT WATER BIRD SPECIES
The bioaccumulation behaviour of single PCB congeners in three trophic levels of a food chain in an aquatic ecosystem was studied. Congener-specific biotransfer factors were calculated comparing PCB concentrations in tissues of 4 water bird species with the contents measured in their food source. The coplanar PCBs were of particular interest. The maximum concentrations of individual PCB congene...
متن کاملToxic equivalency factors for dioxin-like PCBs.
The WHO-European Centre for Environment and Health (WHO-ECEH) and the International Programme on Chemical Safety (IPCS), have initiated a project to create a data base containing information relevant to the setting of Toxic Equivalency Factors (TEFs), and, based on the available information, to assess the relative potencies and to derive consensus TEFs for PCDDs, PCDFs and dioxin-like PCBs. Ava...
متن کاملValidation of Aquatox 1.68 for Predicting Bioaccumulation of Pcbs in the Lake Ontario Food Web
Certain chemicals are persistent in aquatic systems and tend to accumulate in the tissue of fish and other aquatic organisms, sometimes to levels that make them unsafe for human or wildlife consumption. The “bioaccumulative” compounds, such as polychlorinated biphenyls (PCBs), are the cause of a significant number of advisories against fish consumption throughout the U.S. Exposure to bioaccumul...
متن کاملBioaccumulation of PCBs in the cuttlefish Sepia officinalis from seawater, sediment and food pathways.
The cuttlefish Sepia officinalis was selected as a model cephalopod to study PCB bioaccumulation via seawater, sediments and food. Newly hatched, juvenile cuttlefish were exposed for 17 days to environmentally realistic concentrations of (14)C-labeled 2,2',4,4',5,5'-hexachlorobiphenyl (PCB#153) (18 ng PCB l(-1) seawater; 30 ng PCB g(-1) dry wt sediments; Artemia salina exposed to 18 ng PCB l(-1...
متن کاملEstimation and Modelling of PCBs Bioaccumulation in the Adriatic Sea Ecosystem
Persistent Organic Pollutants represent a global ecological concern due to their ability to accumulate in organisms and to spread species-by-species via feeding connections. In this work we focus on the estimation and simulation of the bioaccumulation dynamics of persistent pollutants in the marine ecosystem, and we apply the approach for reconstructing a model of PCBs bioaccumulation in the Ad...
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ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2005
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es050376i