The mass concentrations of HCHs,DDTs and PCBs in TSP are 7.4,30.4 and 21.9 pg/m~(3),respectively,and are 3.7,19.5 and 13.1 pg/m~(3) in PM_(10),respectively.

• TSP中六六六(HCHs)、滴滴涕(DDTs)和多氯联苯(PCBs)的平均质量浓度分别为7.；4；30