| pcbs and ddts in light-vented bulbuls from guangdong province, south china: levels, geographical pattern and risk assessment. | thirty-two light-vented bulbuls (pycnonotus sinensis) were collected from six sampling sites in guangdong province, south china to investigate the geographical variation on the occurrence of polychlorinated biphenyls (pcbs), dichlorodiphenyltrichloroethane and its metabolites (ddts). concentrations of pcbs and ddts in the pectoral muscle of light-vented bulbul ranged from 140 to 73,000 ng/g lipid weight (lw) and 12 to 4600 ng/g lw, respectively. pcb concentrations were significantly higher in bi ... | 2014 | 24907616 |