PCDD/DFS and coplanar pcbs in sediment and fish samples from the Er-Jen river in Taiwan

Arsenic inhibits induction of cytochrome P450 1A1 by 2,3,7,8-tetrachlorodibenzo-p-dioxin in human hepatoma cells

“…These organochlorines compounds have been found widespread in ambient air [2], stack flue gas [3], sediment [4], fish [5], blood and placentas [6], and breast milk [7,8] in Taiwan. PCDD/DF/Bs can persistently contaminate our environment leading to raising public concern on human exposure to these chemicals.…”

Interaction of polybrominated diphenyl ethers (PBDEs) with anaerobic mixed bacterial cultures isolated from river sediment

“…Er-Jen River was mainly contaminated by municipal wastewater, industrial effluent, and heavy metals [17], whereas Nan-Kan River was contaminated by municipal wastewater, agricultural wastewater and industrial effluent [18]. The main difference between the two rivers is that there are metal reclamation activities in ErJen River, which caused metal pollution in this river, and there exist great differences in locations and contaminants present and experiments were conducted on the sediments of the two rivers.…”

Levels and sources of PCDDs, PCDFs and dl-PCBs in the water ecosystems of central Poland — A mini review

“…Polychlorinated dibenzo-p-dioxins and dibenzofurans were also determined in sediments collected from Odra and Wisła rivers [36]. The highest toxicity was observed along the profile at Kwidzyn, and this value was much lower than the toxicity observed in the highly contaminated rivers in Taiwan (up to 14 200 pg/g) or in Rhine river in Germany [31,37]. Hence, the authors concluded that the rivers in Poland are less contaminated with PCDDs/PCDFs as compared to the other rivers, even in Europe.…”

“…Ling et al [31] have reported that concentration of PCDDs/ PCDFs in fish from Er-Jen River was very high due to contamination of sediment collected from that river. There seems to be a noticeable connection between sediment pollution and concentration of PCCDs/PCDFs in fish and, consequently, between human intake of PCDDs/PCDFs.…”