The chlorinated ethenes, vinyl chloride, vinylidine chloride, trichloroethylene, and tetrachloroethylene have been detected in groundwater throughout the united states. vinyl chloride and vinylidine chloride originate from industrial waste disposal sites as waste products of plastic manufacturing… More

Ground water at some air force facilities has become contaminated with jet fuel. this material is comprised of over 200 components, most of which are straight and branched-chain hydrocarbons having between five and fifteen carbon atoms. since organisms known to degrade similar compounds are… More

This program is designed to develop an outline hplc or fia organohalogen photoelectroanalyzer. many organohalogens have biological properties, including carcinogenesis, mutagenesis, and/or teratogenesis. new and improved methodsof trace analysis for such compounds will assist the regulatory… More

Low molecular weight chlorinated hydrocarbons are widespreadenvironmental contaminants and are of concern because of their toxic and carcinogenic properties. they are persistent in soils and groundwater, resist degradation in biological wastewater treatment systems, and are expensive to remove from… More

Coal tar is a by-product of the coal gasification process used between 1880 and 1950 to produce a natural gas substitute. it is estimated that several billion gallons of this material were land-disposed at over 1500 sites in the united states. the tar contains seventeen polynuclear aromatic… More

Coal tar is a by-product of the coal gasification process used between 1820 and 1950 to produce a natural gas substitute. it is estimated that several billion gallons of this material were land-disposed at over 1500 sites in the u.s. the tar contains polynuclear aromatic hydrocarbons (pah) which… More

Chlorinated solvents such as tetrachloroethylene, have been spilled and disposed of on soil and have been transported to the ground water, causing widespread aquifer contamination. these compounds are of concern because of their toxicity and suspected carcinogenicity. chlorinated solvents having… More