| Abstract
| - Concentrations of persistent halogenated hydrocarbons(PHHs) were determined in 13 consumer fish species (a totalof 390 individuals) collected from a major fish-farmingregion of China. The potential health risks of PHHs associatedwith consumption of fish from China was also systematicallyassessed regionally and globally. In all fish samples,DDTs, HCHs, PCBs, and PBDEs were the predominantPHH residues, with the median levels (ranges) being 6.0 (0.14−698.9), 0.50 (0.13−24.06), 0.10 (<0.02−7.65), and 0.15(<0.0012−3.85) ng/g wet weight, respectively. The upper-bound (90th percentile) values of estimated daily intakesof DDT, HCHs, PCBs, and PBDEs via fish consumption were45.5, 1.35, 0.46, and 0.30 ng/kg bw/d (urban), and 15.9,0.47, 0.16, and 0.10 ng/kg bw/d (rural). Globally, the upper-bound outflows via fishery exportation of DDT, HCHs,PCBs, and PBDEs were 185, 5.51, 1.86, and 1.22 kg, respectively,in 2005. Japan was the largest recipient of PHHs, followedby Korea and the United States. Fish consumptionassessments indicated that consumption of freshwaterfarmed and wild marine fish generally does not subjectconsumers to significant health risk as far as PHHs areconcerned, while limited consumption of seawater farmedfish is advised.
|
