Bois, "Toxicokinetics of inhaled trichloroethylene and
tetrachloroethylene in humans at 1 ppm: empirical results and comparisons with previous studies," Toxicological Sciences, vol.
[6] Enzien, M.V., Picardal, F., Hazen, T.C., Arnold R.G., and Fliermans, C.B., 1994, "Reductive dechlorination of trichloroethylene and
tetrachloroethylene under aerobic conditions in a sediment column," Appl.
Test VOCs and Their Properties Chemical Chemical Molecular Category Name Formula MW Alkane n-Hexane [C.sub.6][H.sub.14] 86.2 Alkane n-Decane [C.sub.10][H.sub.22] 142.3 Aromatic Toluene [C.sub.7][H.sub.8] 92.1 Chlorocarbon
Tetrachloroethylene [C.sub.2][Cl.sub.4] 165.8 Ketone 2-Butanone [C.sub.4][H.sub.8]O 72.1 Alcohol Isobutanol [C.sub.4][H.sub.10]O 74.1 Terpene d-Limonene [C.sub.10][H.sub.16] 136.2 VP at Chemical BP 25[dedrees]C ASHRAE Ci Category ([degrees]C) (mm Hg) Std.
Some countries also called for discharges of synthetic substances such as trichloroethylene and
tetrachloroethylene to be included in annex I.
Groundwater contaminants include many different industrial and agricultural chemicals and fuels, including a host of other petroleum hydrocarbons; a wide range of chlorinated compounds such as
tetrachloroethylene (PCE), perchlorate and vinyl chloride (PC), carbon tetrachloride, pesticides and industrial solvents; and a long list of metals including arsenic, mercury, lead, chromium and others.
More than 10 years ago, a 2000 gpm carbon removal system was installed to remove volatile organic compounds--trichloroethylene,
tetrachloroethylene, and carbon tetrachloride--and other organics from the system.
Iron particles have already been trialled for the treatment of contaminated groundwater at Port Botany in Sydney where a large iron particle barrier has been installed to destroy chlorinated solvents including 1,2-dichloroethane and
tetrachloroethylene. *Dr David Garman, + 61 2 9385 5008, d.garman@unsw.edu.au
Among the VOCs that Adgate and his team studied were chloroform, a by-product of chlorination that's released from household water; d-limonene and a- and b-pinene, common deodorizing chemicals that produce scents of lemon and pine; para-dichlorobenzene, an air freshener and pesticide; and
tetrachloroethylene, which emanates from dry-cleaned clothing.
The 11 solvents which would be precluded from landfill disposal are: benzene, carbon tetrachloride, chlorobenzene, cresols, MEK, trichloroethylene, 2-nitropropane, nitrobenzene, pyridine,
tetrachloroethylene and methylene chloride.
The city also detected harmful substances in the soil in the area, including
tetrachloroethylene exceeding standards by 1,800 times and dioxin at 86 times the standard.
Tetrachloroethylene is used as a cleaning agent, and it's thought to cause cancer.