on day 2 , contamination with lindane , aldrin , heptachlor epoxide and heptachlor averaged 43.8 , 23.5 , 25.4 and 7.4 ng/g fat , respectively , and the levels showed a linear decrease on subsequent days in all cases except that of heptachlor , for which no significant negative correlation with time could be demonstrated .
C0019220
heptachlor epoxide
C0019219
heptachlor