They calculated seepage velocity and determined that chemicals would trickle down to groundwater in five years, but hexachlorobenzene
had been seeping for decades.
This means that some organic substances like fat molecules, hexachlorobenzene
and naphthalene are decomposed by this plant.
Affected sources are those facilities that generate or produce the following HAPs of concern above the OSHA thresholds: 1,3-butadiene, 1,3-dichloropropene, acetaldehyde, chloroform, ethylene dichloride, hexachlorobenzene
, methylene chloride, quinoline, hydrazine, and compounds of arsenic, cadmium, chromium, lead, manganese, and nickel.
Therefore, the objective of this laboratory-scale study was to investigate the effect of ultrasound and various experimental conditions on clayey soils contaminated with three persistent organic compounds: hexachlorobenzene
(HCB), phenanthrene (PHE) and fluoranthene (FLU).
Mirex (99%), a-chlordane (99%), Xchlordane (99%) and hexachlorobenzene
(HCB) (99%) were EPA standards.
Relationship of lead, mercury, mirex, dichlorodiphenyldichloroethylene, hexachlorobenzene
, and polychlorinated biphenyls to timing of menarche among Akwesasne Mohawk girls.
Distribution of PCB congeners, DDE, hexachlorobenzene
, and methylsulfonyl metabolites of PCB and DDE among various fractions of human blood plasma.
It prohibits and/or limits the production and use of twelve POPs: aldrin, chlordane, dieldrin, endrin, heptachlor, hexachlorobenzene
, mirex toxaphene, polychlorobiphenyls (PCBs), DDT, polychlorodibenzo-p-dioxins and polychlorodibenzofurans.
Analyses included 20 OC pesticides: hexachlorobenzene
(HCB), [alpha]-hexachlorocyclohexane ([alpha]-HCH), lindane ([gamma]-HCH), aldrin, dieldrin, methoxychlor, mirex, sum of endosulfans ([alpha]- and [beta]-endosulfan), sum of chlordanes (heptachlor, heptachlor epoxide, [gamma]-chlordane [[gamma]-CHL], cis-chlordane, trans-nonachlor), and sum of dichlorodiphenyltrichloroethanes (DDT) and metabolites (o, p'- and p, p'- DDD, DDE, DDT), and 24 PCB congeners (8, 18, 28, 29, 44, 50, 52, 66, 77, 87, 101, 104, 105, 118, 126, 128, 138, 153, 170, 180, 187, 195, 206, 209).
Concentrations of organochlorine pesticides and hexachlorobenzene
in the water samples also remained below the established target values in groundwater and limit values set to effluents.
3 million litres of Agent Orange and Agent Purple (both containing deadly dioxins) as well as Agent White, which contains hexachlorobenzene
, from 1956 to 1984.
They show that ministers this week (Tues) ordered that aldrin, chlordane, dieldrin, endrin, heptachlor, hexachlorobenzene
, mirex, toxaphene, polychlorinated biphenyls (PCB), DDT, chlordecone, the sum of alpha, beta- and gamma-HCH, and hexabromobiphenyl be present in wastes at concentrations not exceeding 50 mg/kg.