Screening of Soil Genotoxicity at an E-waste Processing Area Using SOS/umu Test
利用SOS/umu测试评价某电子垃圾处理地土壤的遗传毒性

Contamination caused by primitive E-waste processing activities is one of environmental concerns in China. A total of 23 surface soil organic extracts from an E-waste processing area in Southern China were analyzed to screen and assess direct and indirect genotoxicity levels using SOS/umu test. When exposed to a given amount of extract (corresponding to 100mg?well-1), only several samples showed positive response for direct genotoxicity, but a majority of soil samples showed indirect gentoxicities. Compared with control soils, there was accumulation of indirect mutagens in soils which might be the consequences of primitive E-waste processing activities.