中国北京城市大气中有机氯农药的水平、季节性变化及潜在来源。

Levels, seasonal patterns, and potential sources of organochlorine pesticides in the urban atmosphere of Beijing, China.

机构信息

State Environmental Protection Key Laboratory of Dioxin Pollution Control, National Research Center for Environmental Analysis and Measurement, No. 1 Yuhuinanlu, Chaoyang District, Beijing, 100029, China.

出版信息

Arch Environ Contam Toxicol. 2011 Aug;61(2):159-65. doi: 10.1007/s00244-010-9612-4. Epub 2010 Oct 16.

DOI:10.1007/s00244-010-9612-4

PMID:20953782

Abstract

Air samples collected monthly on the roof of a building in Beijing were analyzed for the levels, seasonal patterns, and potential sources of organochlorine pesticides (OCPs). A high-volume air sampler with polyurethane foam and quartz fiber filters was used to collect monthly samples from November 2005 to April 2009. Hexachlorobenzene (HCB) and DDT isomers were the most abundant organochlorinated pesticides in the Beijing atmosphere. Higher OCP concentrations were generally found in summer, except for HCB. Coal combustion, waste incineration, and fuel combustion were assumed to be the potential HCB emission sources. Significant input of either of these OCPs during our study period was considered very unlikely.

摘要

每月在北京一栋建筑物屋顶采集的空气样本，其所含的有机氯农药（OCPs）的含量、季节性变化模式和潜在来源都经过了分析。2005 年 11 月至 2009 年 4 月，我们使用一个带有聚氨酯泡沫和石英纤维过滤器的大容量空气采样器来采集每月样本。六氯苯（HCB）和滴滴涕异构体是北京大气中最丰富的有机氯农药。除 HCB 外，一般来说 OCP 浓度在夏季较高。煤燃烧、废物焚烧和燃料燃烧被认为是 HCB 的潜在排放源。在我们的研究期间，这些 OCPs 中的任何一种都不太可能大量输入。