期刊论文

Xue, N.-D.

中文

中国环境科学

1000-6923

2012

32

7

1250-1256

10.3969/j.issn.1000-6923.2012.07.016

201109017-2:环保公益性行业科研专项重大项目 863;2012AA06A304:国家高技术研究发展计划（863计划）

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对227个黄淮平原农田表层土壤样品中16种多环芳烃(PAHs)含量进行了调查,并对其致癌风险和来源等进行了分析.结果表明,有15种PAHs被普遍检出,各单体检出率在23.3％～ 100％之间(苊烯未检出).土壤中PAHs总量(∑PAHs15)为33.44～1 246μg/kg,平均值为152.4±166.2μg/kg,且以4环及4环以上PAHs为主,其中16.7％的样品中PAHs含量达到了污染水平(＞200μg/kg),与国内外其他地区相比,黄淮平原农田土壤中PAHs含量处于相对较低水平.黄淮平原农田土壤7种致癌性PAHs毒性当量浓度(TEQBap)占总毒性当量浓度的98.27％,其中苯并(a)芘(Bap)潜在致癌风险最大.同分异构体比值法和主成分分析结果表明黄淮平原农田土壤...

Levels, carcinogenic risks and sources of sixteen polycyclic aromatic hydrocarbons (PAHs) were analyzed in 227 surface farmland soil samples collected from Huanghuai Plain. The results showed that 15 PAHs (except for acenaphthylene) were generally detected, and the detection ratios ranged from 23.3% to 100%. The total concentrations of 16 PAHs (∑PAH 15 ) varied from 33.44 μg/kg to 1246 μg/kg, with a mean value of 152.4±166.2 μg/kg, while four and more rings PAHs were the majority dominant components of ∑PAH 15 . Compared with those in oth...