Moreover, ultrasound irradiation treatment was found to be more effective to polycyclic aromatics hydrocarbon than polychlorinated hydrocarbon like hexachlorobenzene
, which may be attributed to the different chemical composition of these contaminants.
Seasonal comparisons of specific health parameters and mean concentrations of tissue contaminants (selenium and metals in kidney, in [mu]g/g wet weight, and hexachlorobenzene
[HCB] in peri-renal fat, in ng/g wet weight) in caribou from the George River herd, Labrador, in 2001.
1 [micro]g/L (tetrachloromethane) (5) (4) DDT <10 ng/L <10 ng/L (5) (2) Drins Aldrin <5 ng/L <10 ng/L Dieldrin <5 ng/L <10 ng/L Endrin <5 ng/L <10 ng/L (5) (2) Hexachlorobenzene
, HCB <10 ng/L <10 ng/L (5) (2) Chloroform <0.
Reports of dangerous levels of polychlorinated biphenyls (PCBs), DDT, dieldrin, chlordane and hexachlorobenzene
(plus insecticides, antiseptics, antibiotics, dyes and hormones) in farmed salmon are abundant.
We analyzed samples for hexachlorobenzene
(HCB), trans nonachlor, heptachlor epoxide, 1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene (p,p'-DDE), dieldrin, and polychlorinated biphenyls (PCBs 153, 138, and 180).
Nine of the 12 (aldrin, endrin, dieldrin, chlordane, dichloro-diphenyl-trichloroethane (DDT), heptachlor, hexachlorobenzene
, mirex, and toxaphene) are pesticides that have been targeted for elimination by NGOs around the world since the early 1980s.
com, an independent group that posts quality reviews of commercial products on its Web site, found 9 of 22 ginseng products met their criteria for quality and purity Unacceptable levels of the pesticides quinrozene and hexachlorobenzene
were found in eight, while two contained unacceptable levels of lead.
Table 1 List of the Sixteen Substances Initially Included in the CLRTAP POPs Protocol Annex Pesticides Industrial Unintentional chemicals by-products I Aldrin Hexabromobiphenyl Chlordane PCBs Chlordecone DDT Dieldrin Endrin Heptachlor Hexachlorobenzene
Mirex Toxaphene II HCH/Lindane DDT PCBs III Dioxins Furans Hexachlorobenzene
PAHs Source: Adapted from Annex I-III of the protocol.
1945 1-2 million (fungicide and by-product of pesticide production) Mirex[TM] (insecticide 1959 No data and flame retardant) Toxaphene[TM] (insecticide 1948 1.
Twelve POPs have been identified under the convention including DDT, chlordane, mirex, PCBs, hexachlorobenzene
, dioxins and furans.
Pond-raised catfish, trout, and crayfish met Food and Drug Administration standards set for PCBs, DDT, chlordane, dieldrin, hexachlorobenzene
, heptachlor expoxide, and several other pesticides.
The other organic pollutants subject to control are DDT, aldrin, chlordane, dieldrin, endrin, heptachlor, mirex, hexachlorobenzene