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江苏省茶园和农田土壤中拟除虫菊酯类农药残留监测与污染特征分析
高占啟, 胡冠九, 王荟, 毕凤稚, 王骏飞
江苏省环境监测中心
摘要:
采集江苏省10个市的茶园和农田表层土壤样品,采用气相色谱-三重四级杆质谱仪分析样品中12种拟除虫菊酯类农药的含量和组成。结果表明,江苏省茶园和农田土壤中广泛检出拟除虫菊酯类农药,总含量分别在27.1-50.7 ng/g、56.9-97.0 ng/g范围。研究区域的拟除虫菊酯类农药含量存在差异,但组成相近,均是高效氯氟氰菊酯和联苯菊酯的比例较高。与国内其他地区土壤相比,江苏省茶园和农田土壤中拟除虫菊酯含量处于中等水平。
关键词:  拟除虫菊酯类农药, 土壤,茶园,农田,残留监测,污染特征,江苏.
DOI:
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基金项目:江苏省环境监测科研基金项目
Monitoring and pollution characteristics of pyrethroid pesticides in tea-planted and agricultural soils in Jiangsu Province
Abstract:
The tea-planted and agricultural surface soil samples in 10 cities of Jiangsu Province were collected for residue monitoring of pyrethroid pesticides. The content and composition of 12 pyrethroid pesticides were analyzed to investigate their pollution characteristics in the collected soil samples. The result show that pyrethroid pesticides were widely detected in tea-planted and agricultural soils in Jiangsu Province. The total contents of pyrethroid pesticides contents in the collected soil samples were in the ranges of 27.1-50.7 ng/g and 56.9-97.0 ng/g, respectively. There were differences in the contents of pyrethroid pesticides in the different regions of Jiangsu Province, but the composition was similar. Lambda-cyhalothrin and bifenthrin were the dominant species. Compared with that of other areas in China, the content of pyrethroids in tea-planted and agricultural soils in Jiangsu Province was at a moderate level.
Key words:  Pyrethroid pesticides, Tea-planted soil  Agricultural soil  Residue monitoring  Pollution characteristics  Jiangsu.