To unambiguously identify spilled oils and petroleum products and to link them to the known
sources are extremely important in settling questions of environmental impact and legal …

Throughout the world, organic and inorganic substances leach intothe subsurface as a
result of human activities and accidents. There, the chemicals pose director indirect threats …

The determination of compound-specific stable isotope ratios is a promising new tool to
assess biodegradation of organic compounds in groundwater. In this study, the occurrence …

Enhanced analytical capabilities and separation techniques, improved detection limits, and
accessibility of instrumentation have led to massive strides in the use of isotopes to assess …

This study investigates the carbon isotope systematics of benzene, toluene, ethylbenzene,
and xylene monoaromatic hydrocarbons (BTEX) with regard to an improved understanding …

At many sites contaminated with petroleum hydrocarbons, methanogenesis is a significant
degradation pathway. Techniques to estimate CH4 production, consumption, and transport …

Stable isotope fractionation during vaporization of trichloroethylene has been measured,
with possible application as a technique to investigate subsurface behavior. The equilibrium …

A study was designed to determine if the intrinsic bioremediation of gas condensate
hydrocarbons represented an important fate process in a shallow aquifer underlying a …

This study applied an integrated method for evaluating the effectiveness and mechanism of
natural attenuation (NA) of petroleum-hydrocarbon contaminated groundwater. Site …

In order to gain regulatory approval for source zone natural attenuation (SZNA) at
hydrocarbon-contaminated sites, knowledge regarding the extent of the contamination, its …