土壤提取液中汽油的毒性研究  

TOXICITY OF GASOLINE IN SOIL EXTRACTING SOLUTION

作　　者：丁克强[1] 骆永明[1] 刘世亮[1] 李振高[1] 

机构地区：[1]中国科学院南京土壤研究所,南京210008

出　　处：《土壤》2003年第1期41-44,共4页Soils

基　　金：国家自然科学基金重点项目(40031010和49831070);国家重点基础研究发展规划项目(G1999011807);中国科学院南京土壤研究所土壤与环境联合开放研究实验室项目资助。

摘　　要：本文利用发光细菌法研究了土壤水提取液中2种汽油(90#和93#)的生物毒性.提取液中90#和93#汽油分别在63.2～90.1mg/L和62.7～91.1 mg/L范围内有较高的生物毒性,并随浓度的升高而增强,90#和93#汽油的土壤水提液EC50值分别为83.5 mg/L和83.7 mg/L,在土壤中的临界值为2308 mg/kg和3678 mg/kg.这些结果为发光细菌毒性测定方法在石油产品污染土壤生物毒性评价中应用提供了可能性.Biological toxicity of two kinds of gasoline (90# and 93# ) in soil extracting solution was studied with the help of luminous bacteria. It was high when the concentration of 90# and 93# in the soil extracting solution reached 63.2~90.1 mg/L and 62.7~91.1 mg/L, respectively, and increased with the concentration. EC50 of 90# and 93# in the soil extracting solution was 83.5 mg/L and 83.7 mg/L, respectively. The critical concentration of 90# and 93# in the soil was 2308 mg/kg and 3678 mg/kg, respectively. The results of the study make possible the application of the method of using luminous bacteria to assess biological toxicity of petro-products polluting the soil.

关 键 词：汽油 土壤污染 发光细菌法 生物毒性 测定方法 

分 类 号：X53[环境科学与工程—环境工程]