discharge bay
4.he concentrations and distribution of HCHs, DDTs and PCBs in surface sediments of Xiamen Western Bay were investigated during a cruise in Nov. 1993. Concentration ranges of HCHs, DDTs and PCBs are 0. 14-1. 12ng·g(-1), 4. 45-311ng· g(-1) and 0. 05-7. 24ng· g(-1),respectively. The distribution patterns are mainly related to the pollutant discharge sources.

