in the global environment: emissions, levels, distributions, trends, and processes.
The representative persistent organic compounds were hexachlorobenzene
(HCB, 99%), a typical polychlorinated hydrocarbon and two polycyclic aromatic hydrocarbons (PAHs): phenanthrene (PHE, 97%) and fluoranthene (FLU, 98%) purchased from Sigma-Aldrich, Germany.
The concentrations of aldrin, dieldrin, endrin, DDT, hexachlorocyclohexane, and hexachlorobenzene
remained below the established target values in all bottom sediments.
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 include materials such as: Aldrin Chlordane DDT Dieldrin Endrin Heptachlor Hexachlorobenzene
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.
The polymerization process used to manufacture a new range of crystal-clear and colored acrylic molding compounds for automotive signal lights uses neither tetrachlorophthalic anhydride (TCPA) nor hexachlorobenzene
Within this sequence, contamination in the sediment increased 10-fold for the pesticide hexachlorobenzene
and 25-fold for mercury.
To the dismay of Beyond Pesticides, penta's revised risk assessment neglects to take into account two highly hazardous constitutents: dioxins and hexachlorobenzene
The Color Pigments Manufacturers Association (CPMA) recently announced that Environment Canada had made a change in its proposed regulation that currently restricts import or manufacture of products containing more than 20 parts per billion (20 ppb) of hexachlorobenzene
(HCB) was also used as a pesticide until 1965 as well as in other products like fireworks.
THE DIRTY DOZEN: aldrin mirex chlordane toxaphene DDT polychlorinated dieldrin biphenols (PCBs) endrin hexachlorobenzene
heptachlor dioxins furans