The levels and variation of 131I contamination in forage grass and milks in Urumqi area following the Chernobyl nuclear power plant accident are reported.

• 本文报道了苏联切尔诺贝利核电站事故释放的~(131)I对乌鲁木齐地区牧草、奶类的污染水平及动态变化规律。