Contamination levels of PCDDs, PCDFs and non-ortho chlorine substituted coplanar PCBS in milkfish and crab from culture pond and coastal area near open-air incineration sites for metal reclamation in Wan-li, Taiwan, Republic of China

Samples of culture freshwater milkfish (Chanos chanos) from five ponds surrounding open-air waste incineration sites and from five markets in southern Taiwan were analyzed for PCDDs, PCDFs and coplanar PCBs (Co-PCBs). The total TEQ concentration of three chemicals in fish meat was in a wide range of 0.195 to 153 pg/g wet weight. In addition, the bioconcentration factors from sediment to fish meat and crab hepatopancreas biota were arranged in order of Co-PCBs PCDFs > PCDDs and Co-PCBs > PCDFs PCDDs, respectively.