Organochlorine pesticide residues in muscle of Citellus dauricus in vicinity of Harbin city

Objective To explore the content and distrubution of hexachlorocyclohexane(HCH),dichlorodiphenyltrichloroethane(DDT),heptamul,heptachlor epoxide,dieldrin,endrin,and drinox in muscle of Citellus dauricus.Methods We captured a total of 50 wild ground Citellus dauricus in Harbin city and 2 grams thigh muscle were collected from each Citellus dauricus.Cyclohexane and ethyl acetate (1:1) were used to extract the pepticides.Then the extractions were purified and fixed to 1 ml for gas chromatography dtetciton.Results β-HCH and p.p'-DDD were not detected in the samples.The contents of HCH,DDT,heptamul,heptachlor epoxide,dieldrin,endrin,and drinox were 1.617 8-6.030 4 μg/g,10.031 5-25.896 6 μg/g,4.641 3-10.319 0 μg/g,0.034 6-1.203 7 μg/g,0.812 2-47.480 7 μg/g,0.036 2-3.358 6 μg/g,and 0.050 3-1.725 3 μg/g,respectively.Conclusion There are still pollutions of organochlorine pepticide residues in the area of Harbin city.