石油污染物在羊草中的残留

以油田外围未受污染的羊草作对照,分析了大庆油田开采区受落地原油污染的草原土壤及其上生长的羊草中的挥发酚、石油烃、芳烃和苯并a]芘4种污染物的质量分数。结果表明,受到石油污染后,土壤中石油污染物质量分数可以达到土壤背景值的几十倍,污染的和清洁对照的羊草中4种污染物质量分数的差异极显著。在低背景值情况下,挥发酚和苯并a]芘在羊草中的残留率分别达到13.54%和6.87%。污染羊草中的挥发酚、石油烃和苯并a]芘3种污染物的残留量与土壤中的质量分数之间有着显著的线性关系。

Pollutant Residue of Crude Oil in Aneurolepidium chinensis

An experiment was conducted to analyse the contents of volatile phenol,petroleum hydrocarbons,aromatic hydrocarbon and benzo(a)pyrene in the soil polluted by crude oil and in Aneurolepidium chinensis grown on it in the exploited areas of Daqing Oil Field using the unpolluted areas around Daqing Oil Field as a check.Result shows that the contents of the crude oil pollutants in the polluted soil can be several decuples over the background values,and the differences in pollutant contents between the polluted and the unpolluted A.chinensis are very obvious.Under low background values,the residual rates of volatile phenol and benzo(a)pyrene in A.chinensis are 13.54% and 6.87%,respectively.The contents of volatile phenol,petroleum hydrocarbons and benzo(a)pyrene in the polluted soil have remarkable linearity relationships with their contents in A.chinensis grown on the soil.