Pollution Characteristics and Health Risk Assessment of Halogenated Organic Pollutants (HOPs) in Fish from the Laibin Section of Hongshui River, China

This study used gas chromatograph-mass spectrometer (GC-MS) to determine three kinds of halogenated organic pollutants (HOPs) in the edible muscles nine fish species Laibin section Hongshui River Xijiang Pearl system. The results showed that sum organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) muscle was 8.94∼43.32 ng/g ww, 1.22∼4.09 ND∼0.13 respectively. Evaluation indicators include analysis composition homologous compounds, residues different diets habitats, estimated daily intake (EDI) calculations. characteristics compounds endrin most dominant OCPs; hexachlorobenzene PCBs; BDE 154 PBDEs. Calculations levels HOPs habitats OCPs PCBs had highest carnivorous fish, PBDEs herbivorous fish. residual OCPs, PCBs, demersal fishes were most. consumption would not cause health risks local residents. However, there is still a need for continuous monitoring reduce pollutant emissions prevent pollution conditions from arising.