中文摘要：

在 Dalian 的城市的空中的 28 organochlorine 杀虫剂(OCP ) 的集中，中国第一次用半渗透的膜设备(SPMD ) 被测量。Alpha-hexachlorocyclohexane (-HCH),-HCH, pentachlorobenzene (PentCB ) ， hexachlorobenzene (HexCB ) ， 4,4-dichlorodiphenyltrichloroethane (4,4-DDT ) ， 4,4-dichlorodiphenyldichloroethene， endosulfan -- 我和 endosulfan-II 是在 Dalian 的城市的空中的占优势的 OCP。OCP 的集中由 SPMD 扣押了(C < 潜水艇 class= “ a-plus-plus ” > SPMD ) 从对 56,772 pg SPMD 未被发现 < 啜 class= “ a-plus-plus ” > 1 并且有线性关联与平均周围的大气的温度(1/T ) 相互。C < 潜水艇 class= “ a-plus-plus ” > PentCB 和 HexCB 的 SPMD 与 T 有否定关联，而另外的检测 OCP 有积极关联。在空中的 HCH， DDT， HexCB， PentCB，一种强力杀虫剂，和 endosulfan 的来源也被评估。在 Dalian 的城市的空中的 OCP 能被归因于杀虫剂，燃烧，从土壤的年老的 OCP 的挥发，水，植物，和远程的大气的运输的季节的用法。

英文摘要：

The concentrations of 28 organochlorine pesti- cides （OCPs） in the urban air of Dalian, China were measured using semipermeable membrane devices （SPMDs） for the first time. Alpha-hexachlorocyclohexane （α-HCH）, β-HCH, pentachlorobenzene （PentCB）, hexachlorobenzene （HexCB）, 4,4＇-dichlorodiphenyltrichloroethane （4,4＇-DDT）, 4,4＇- dichlorodiphenyldichloroethene, endosulfan-I and endosul- fan-Ⅱ were the predominant OCPs in the urban air of Dalian. The concentration of OCPs sequestrated by SPMDs （CSPMD） ranged from undetected to 56,772 pg SPMD-1 and had a linear correlation with the reciprocal of the average ambient atmospheric temperature （1/T）. The CSPMD of PentCB and HexCB had negative correlations with T, whereas the other detected OCPs had a positive correlation. The source of HCHs, DDTs, HexCB, PentCB, chlordane, and endosulfan in the air were also evaluated. The OCPs in the urban air of Dalian could be attributed to the seasonal usage of pesticides,combustion, volatilization of aged OCPs from soil, water, plants, and long-range atmospheric transport.