生态与农村环境学报 ›› 2016, Vol. 32 ›› Issue (5): 729-734.doi: 10.11934/j.issn.1673-4831.2016.05.007

• 区域环境与发展 • 上一篇    下一篇

江阴市大气PM2.5中有机氯农药的残留水平、空间分布及来源分析

张晓雨1,2, 周晓静1,2, 赵欣2, 吉贵祥2, 单艳红2, 林玉锁2, 吕伟明3, 颜慧3, 李霞3, 刘莉4, 朱海亮1   

  1. 1. 南京大学生命科学学院, 江苏 南京 210046;
    2. 环境保护部南京环境科学研究所, 江苏 南京 210042;
    3. 江阴环境监测站, 江苏 江阴 214431;
    4. 徐州市环境监测中心站, 江苏 徐州 221006
  • 收稿日期:2015-11-13 出版日期:2016-09-25 发布日期:2016-10-08
  • 通讯作者: 赵欣,E-mail:jszhaoxin@qq.com;朱海亮,E-mail:zhuhl@nju.edu.cn E-mail:jszhaoxin@qq.com;zhuhl@nju.edu.cn
  • 作者简介:张晓雨(1989-),女,山东滕州人,硕士生,主要研究方向为生态毒理学。E-mail:zhangxy8839@163.com
  • 基金资助:

    环保公益性行业科研专项(201409081,201509020);徐州市科技计划专项(XM13B104)

Residue Level, Spatial Distribution and Source of Organochlorine Pesticides in Atmospheric PM25 in Jiangyin City

ZHANG Xiao-yu1,2, ZHOU Xiao-jing1,2, ZHAO Xin2, JI Gui-xiang2, SHAN Yan-hong2, LIN Yu-suo2, LV Wei-ming3, YAN Hui3, LI Xia3, LIU Li4, ZHU Hai-liang1   

  1. 1. School of Life Science, Nanjing University, Nanjing 210046, China;
    2. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China;
    3. Jiangyin Environmental Monitoring Station, Jiangyin 214431, China;
    4. Xuzhou Environmental Monitoring Central Station, Xuzhou 221006, China
  • Received:2015-11-13 Online:2016-09-25 Published:2016-10-08

摘要:

于2013年秋季利用大流量采样器采集了江苏省江阴市大气PM2.5样品,使用气相色谱质谱连用仪(GC-MS)检测了19种有机氯农药(OCPs),对其残留水平、空间分布及来源进行分析。结果显示,江阴市大气PM2.5中19种OCPs的总质量浓度平均值为2.84 ng·m-3,主要成分为HCHs、DDTs、工业氯丹以及甲氧氯,分别占OCPs总量的48.2%、19.7%、12.3%和12.5%。与国内外其他地区比较,江阴市大气中有机氯农药污染水平属中等偏上。OCPs空间分布趋势表现为环境监测中心OCPs污染水平最高,而申港公园污染水平最低。来源分析表明,江阴市大气PM2.5中DDTs和氯丹均来源于历史残留;HCHs既来源于工业HCHs的历史残留,同时又存在大量林丹的输入。

关键词: 有机氯农药(OCPs), PM2.5, 空间分布, 来源分析, 江阴市

Abstract:

Atmospheric PM2.5 samples were collected in different functional areas of Jiangyin, Jiangsu Province with high volume sampler in the autumn of 2013, for analysis of concentrations of 19 kinds of organochlorine pesticides (OCPs) with GC-MS in an attempt to determine residue level, spatial distribution and source of the pollutants. Results show that the mean total concentration of ∑OCPs in PM2.5 was 2.84 ng·m-3. Among the 19 kinds of OCPs, HCHs, DDTs, chlordanes and methoxychlor were the dominant ones in the PM2.5, accounting for 48.2%, 19.7%, 12.3% and 12.5%, respectively. Compared with the atmospheres in other regions either domestic or abroad, the one in Jiangyin was moderate by the upper side in OCPs pollution level. The OCPs spatial distribution tendency map shows that the pollution level is the highest in the Environmental Monitoring Center, and the lowest in the Shengang Park. Source analysis reveals that DDTs and chlordane in the PM2.5 came from historical residue pollution, while HCHs did from both historical residue of industrial HCHs and recent input of large volumes of lindane.

Key words: organochlorine pesticides, PM2.5, spatial distribution, source ananlysis, Jiangyin City

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