Polychlorinated biphenyls (PCBs) are a group of chlorinated aromatic hydrocarbons that have attracted much public health attention. Having been used in industry since the 1930s, PCBs were found to be almost ubiquitous in the environment by 1966.' Owing to their excellent dielectric and insulating properties, PCBs have been used in transformers and capacitors, hydraulic systems, paints and other...

The article aims to highlight one of the highest environmental issues, caused by pollution with persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs). This form a negative impact on human health would not be possible without use high voltage industrial electrical equipment dielectric fluids infested various PCB isomers. In order carry out experimental program, samples bo...

wastewater contains a variety of chemical substances owing to the different sources that contribute to affluent into sewage treatment plants. raw and wastewater samples were obtained from the surface of the water bodies at depths of 50 and 100 metres but at different locations in each sampling site. the water samples were subjected to extraction of polychlorinated biphenyls (pcbs) using quecher...

The present study determined the residue levels and characteristic patterns of polychlorinated biphenyls (PCBs), hydroxylated PCBs (OH-PCBs), polybrominated diphenyl ethers (PBDEs), hydroxylated PBDEs (OH-PBDEs), methoxylated PBDEs (MeO-PBDEs) and bromophenols (BPhs) in the blood of pinnipeds collected in 1990–1999 from Japanese coastal waters. Except in ribbon seal, PCBs and OH-PCBs were detec...

Introduction Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) are ubiquitous, persistent, lipophilic pollutants in food. Ingestion of contaminated food is the principal way of human exposure to these compounds, Most data about human exposure to PCDD/Fs and dioxin-like PCBs were available from the industrialized countries 2 while the data from de...

A comprehensive method was developed for quantitative analysis of polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins and dibenzo-furans (PCDD/Fs) in one single extract of environmental samples. The sample preparation procedure included two fractionation steps using silver nitrate silica chromatography to separate PBDEs from PCBs and PC...

The procedure used to determine polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs), chlorinated dibenzodioxins, and chlorinated dibenzofurans is outlined in Table 1. It is based on the cleanup-chromatography of Holden and Marsden (1), modified as described (2). Most PCBs are eluted in fraction I. Fraction II contains some PCBs, p ,p'-DDE, and PCTs, whereas heptachlor exposide, ...

Polychlorinated biphenyls (PCBs) cause many significant ecological problems because of their low degradability, high harmfulness, and solid bioaccumulation.Two bacterial strains were isolated from soil that had been polluted with electrical transformer liquid for more than 40 years. The isolates were distinguished as Lysinibacillus macrolides DSM54Tand Bacillus firmus NBRC1530...

A Monviso clone has been applied to promote PCB degradation in a soil historically contaminated by polychlorinated biphenyls (PCBs) and heavy metals (HMs). The multi-contaminated area is located Southern Italy. PCBs, HMs, the microbial community (abundance, viability, structure) were analysed selected plots of poplar-treated area. At 900 days after poplar planting, chemical analyses showed that...