The micronucleus test with Vicia faba root tip cell was used to study the water pollution of Sanhai in Beijing with 21 and 22 samples respectively in 2003 and 2004.

• 2003和2004年于北京三海(西海、后海和前海)分别采集21、22个样品,利用蚕豆根尖微核技术对水体的污染状况进行了遗传毒性分析。