钢铁厂及其周围土壤中二噁(口英)和多氯联苯污染物的分布规律研究
Environmental Monitoring in China(2010)
Abstract
利用同位素稀释高分辨气相色谱-高分辨质谱(HRGC/HRMS)的分析方法研究了东北某钢铁厂及其周围生活区、背景对照区土壤中二噁(口英)和多氯联苯污染物的污染水平和分布规律.结果表明,土壤中二噁(口英)的浓度和毒性当量分别为26pg/g(6.02~109pg/g)、0.72pg I-TEQ g-1(0.008~5.43pg I-TEQ g-1).土壤中多氯联苯的浓度为955pg/g(268~3504pg/g),毒性当量值达0.07pg TEQ g-1(0.006~0.33pg TEQ g-1).该区域土壤中的二噁(口英)和多氯联苯浓度明显低于一般国家居住地的土壤控制标准,处于较低的污染水平.
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Key words
Soil,Rron and steel making plant,PCBs,HRGC /HRMS,PCDD /Fs
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