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Title: Dioxinlike properties of a trichloroethylene combustion-generated aerosol

Journal Article · · Environmental Health Perspectives
; ;  [1]
  1. Univ. of California, Davis, CA (United States); and others

Conventional chemical analyses of incineration by-products identify compounds of known toxicity but often fail to indicate the presence of other chemicals that may pose health risks. In a previous report, extracts from soot aerosols formed during incomplete combustion of trichloroethylene (TCE) and pyrolysis of plastics exhibited a dioxinlike response when subjected to a keratinocyte assay. To verify this dioxinlike effect, the complete extract, its polar and nonpolar fractions, some containing primarily halogenated aromatic hydrocarbons, were evaluated for toxicity using an embryo assay, for antiestrogenicity using primary liver cell cultures, and for the ability to transform the aryl hydrocarbon receptor into its DNA binding form using liver cytosol in a gel retardation assay. Each of these assays detect dioxinlike effects. Medaka (Oryzias latipes) embryos and primary liver cell cultures of rainbow trout (Oncorhynchus mykiss) were exposed to concentrations of extract ranging from 0.05 to 45 {mu}g/l. 67 refs., 7 figs., 3 tabs.

Sponsoring Organization:
USDOE
OSTI ID:
471879
Journal Information:
Environmental Health Perspectives, Vol. 104, Issue 7; Other Information: PBD: Jul 1996
Country of Publication:
United States
Language:
English