Half of the study population had detectable [gamma]-HCH in serum, followed by p,p'-DDT (42.8%), [beta]-HCH (41.3%), p,p'-DDE (39.5%), heptachlor
(32.9%), a-HCH (30.9%), and endrin (30.6%).
Dieldrin and heptachlor
epoxide were measured by Dewailly et al.
Trace levels of a-HCH, Y-HCH, endosulfan I, endosulfan II, endosulfan sulfate, heptachlor
epoxide, p,p'-DDE, chlorpyrifos, cypermethrin and cyfluthrin were detected in water with the averages of (0.77-0.114, 1.15-1.26, 0.78-1.31, 0.80-1.44, 0.15-1.04, 0.91-1.24, 0.84-1.53, 0.60-1.44, 0.12-1.03, 0.26-1.04 and 0.11-0.23) ng/l, respectively.
The greatest mean values were measured for MeHg (1100 [micro]g x [kg.sup.-1]) and [summation]-DDX (600 [micro]g x [kg.sup.-1]), followed by methoxychlor (240 [micro]g x [kg.sup.-1]), [summation]-chlordane (72 [micro]g x [kg.sup.-1]), heptachlor
(70 [micro]g x [kg.sup.-1]), [summation]-HCH (54 [micro]g x [kg.sup.-1]) and HCB (48 [micro]g x [kg.sup.-1]).
The tested OCPs included pp-DDT and its metabolites pp-DDD and pp-DDE; hexachlorohexanes (HCHs) including [alpha] HCH and [gamma] HCH; heptachlor
epoxide; aldrin and endrin; chlordane, methoxychlor, and HCB.
The mixed standard of OCPs (methoxychlor, [alpha]-endosulfan, [beta]-endosulfan, [alpha]-, [beta]-, [gamma]-, and [delta]-hexachlorocyclohexane (HCH), heptachlor
, dieldrin, aldrin, endrin, endosulfan sulphate, p,p'-DDE, p,p'-DDD, p,p'-DDT, and gamma-chlordane) was obtained from Supelco (PA, USA).
Despite numerous attempts to kill the complaint over multiple years, SACE's contention--that potentially dangerous carcinogenic chemicals, including heptachlor
and tetrachloroethylene, could possibly leak into drinking water--stood.
However, OCPs (lindane, aldrin, heptachlor
, epoxide, HCB, eldrin, chlordane and DDT) were present above the recommended limit established by FAO/WHO .
The approach is a combination of "interspecies chemical warfare" and "physical barriers." Back in the old days, we had fabulous termiticides called chlordane and heptachlor
. What made them so fabulous was that the little buggers--the termites--couldn't detect their presence and they would wander through them and die.
They were also lower than the 0.30 [micro]g/g HCB, 0.05 [micro]g/g chlordane, 0.04 [micro]g/g heptachlor
, 0.06 [micro]g/g aldrin, and 0.36 [micro]g/g total endosulfan reported for honey samples from Kahramanmaras, Turkey .
The twenty-five OCPs (AccuStandard, Inc., NY, US) used in this study were as follows: aldrin; cis-chlordane; trans-chlordane; oxychlordane; o,p -DDD; p,p'-DDD; o,p'-DDE; p,p'-DDE; o,p'-DDT; p,p'-DDT; dieldrin; endosulfan I; endosulfan II (ES II); endrin; [alpha]-hexachlorocyclohexane ([alpha]-HCH); [beta]-HCH; [gamma]-HCH; 5-HCH; heptachlor
; cis-heptachlor epoxide (cHCP); trans-heptachlor epoxide (tHCP); hexachlorobenzene (HCB); isodrin; methoxychlor (MOC); and mirex.
Two major chlordanerelated transformation products, heptachlor
epoxide and oxychlordane, represented an average of 73 and 76% of [SIGMA]CHL in moose liver in Dehcho and South Slave samples, respectively.