Thirty male SD rats were randomly devided into tw o groups,15 in an exposed group dynamically inhaling a constant concentration of (43mg/m3± 4mg/m3)cooking oil fume(COF),and 15 in a ne gative control group inhaling heated(24～28 ℃)air.Effect of COF on the go nads and levels of trace elements were observed on the 20th,40 th,and 60th day after exposure in the rats,respectively.Body weig ht and ratio of gonad to body weight in the exposed rats appeared a decreasing t rend on the 40 th and 60 th day after exposure to COF.The coef ficients of visc...
