›› 2013, Vol. 25 ›› Issue (1): 0-129.

• 论文 •    

杭州西湖表层水体中有机氯农药的时空分布特征

杨洪达1,2,王祥云2,邓勋飞3,赵长山1,章虎2,徐浩2,王新全2,*   

  1. 1东北农业大学 农学院,黑龙江 哈尔滨 150030;2浙江省农业科学院 农产品质量标准研究所,农业部农药残留检测重点实验室,省部共建国家重点实验室培育基地“浙江省植物有害生物防控重点实验室”,浙江 杭州 310021;3浙江省农业科学院 数字农业研究所,浙江 杭州 310021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-01-25 发布日期:2013-01-25

Spatial and temporal distribution of organochlorine pesticides in surface water of West Lake of Hangzhou

YANG Hongda;WANG Xiangyun;DENG Xunfei;ZHAO Chanshan;ZHANG Hu;XYU Hao;WANG Xinquan;*   

  1. 1Agricultural College, Northeast Agricultural University, Harbin 150030, China; 2State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control; MOA Key Lab for Pesticide Residue Detection; Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; 3Institute of Digital Agriculture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-01-25 Published:2013-01-25

摘要: 在夏、冬季采集杭州西湖19个点位表层水体,采用气相色谱(GC\|ECD)内标法对18种有机氯农药的含量进行了分析测定。结果表明,夏、冬季杭州西湖表层水体中OCPs总含量范围分别为24.86~159.80 ng·L-1和20.88~96.24 ng·L-1,平均值分别为75.09和43.60 ng·L-1。OCPs的含量随季节变化,夏季水体中OCPs的含量高于冬季的含量。杭州西湖表层水体中OCPs的含量次序为:∑DDTs>∑HCHs>∑其他OCPs,且水体中DDTs和HCHs污染主要来源于环境中早期残留。夏、冬季杭州西湖表层水体中有机氯农药污染与其他地区相比,污染情况相对较低,各点位表层水体中HCHs和DDTs含量均未超过地表水环境质量标准。

关键词: 有机氯农药, 杭州西湖, 表层水体, 时空分布特征

Abstract: The 19 surface water samples were collected from the West Lake of Hangzhou in summer and winter. The concentrations of 18 organochlorine pesticides(OCPs) in the samples were determined by GC\|ECD with the internal standard method. The results showed that the total concentrations of OCPs in surface water from the West Lake of Hangzhou in both summer and winter were in the ranges of 2486-15980 ng·L-1(with a mean of 75.09 ng·L-1) and 20.88-96.24 ng·L-1 (with a mean of 43.60 ng·L-1). The concentration of OCPs was seasonal and the level of OCPs in summer was higher than that in winter. The orders as the total concentrations of OCPs in surface water from the West Lake of Hangzhou were: DDTs>HCHs>other OCPs, and DDTs and HCHs were mainly the early residues in environment. Compared with other regions, the concentration of OCPs in surface water from the West Lake of Hangzhou was lower. The concentration of DDTs and HCHs in surface waters did not exceed the limit of surface water environment quality of China.

Key words: organochlorine pesticides, spatial and temporal distribution, surface water, West Lake of Hangzhou