In 1992,contents of HCH and DDT in eight kinds of foods were monitored in 355 samples from five provinces and cities.

• 1992年5省市对8类主要食品355件中六六六、滴滴涕含量栓测结果，六六六检出率为69%25，符合我国食品卫生标准，合格率99.；44%25；