Levels of dichlorodiphenyltrichloroethanes(DDTs)and Polycyclic aromatic hydrocarbons(PAHs)in sediments and fish from Pearl River Delta area were determined with GC-ECD and GC-MS.

• 采用GC-ECD和GC-MS分析了珠江三角洲淡水养殖鱼塘沉积物及鱼体中DDTs、PAHs的质量分数。