BIOACCUMULATION OF DECHLORANE PLUS IN AQUATIC FOOD WEB FROM AN ELECTRONIC WASTE RECYCLING SITE, SOUTH CHINA

摘要

Water, sediment and aquatic organisms were collected from an e-waste site and analyzed for Dechlorane Plus (DP). DP is detected in all the aquatic species, with concentrations of 19.1–9630 ng/g lipid wt. An enrichment of syn-DP is observed in organisms compared with abotic samples and the fraction of anti-DP was found decreased with increased trophic level. Syn-DP was significant correlated with PBDEs and PCBs in the organisms but anti-DP was not the case. Both syn- and anti-DP significantly biomagnify in the present food web, with a trophic magnification factor (TMF) of 11.2 and 6.6, respectively. The TMFs of the DP isomers are higher than those of individual congener of PBDEs, but are generally lower than PCB congeners.