Estimating the equilibrium aqueous concentrations of polynuclear aromatic hydrocarbons in complex mixtures
Article Abstract:
The presence of polynuclear aromatic hydrocarbons in the soil can affect people's health and the environment. The principles of equilibrium chemistry were related to the distribution of nonpolar solutes between organic matter and water. A two-phase liquid-liquid equilibrium model was used, and the aqueous concentrations of field-contaminated soils were measured in batch equilibrium experiments. The results reveal that the composition of organic matter has a significant effect on the solute concentrations in water.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Reactions of polynuclear aromatic hydrocarbons on soil
Article Abstract:
An investigation of the interactions between polynuclear aromatic hydrocarbons and soils was conducted as a function of moisture content and time. The recovery of anthracene in dry soils was very low. It was unrecoverable in Ellerslie soil after about 6 d. Pyrene and phenanthrene exhibited similar behavior. Addition of water to the soil inhibited the reactions, indicating that water and anthracene compete for access to active sites on mineral surfaces.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
On-line coupled LC-GC-ITD/MS for the identification of alkylated, oxygenated, and nitrated polycyclic aromatic compounds in urban air particulate extracts
Article Abstract:
A new technique for identifying alkylated, oxygenated and nitrated polycyclic aromatic compounds in urban air particulate samples is demonstrated. The method combines high-pressure normal-phase liquid chromatography with a high-resolution gas chromatograph with an ion trap detector mass spectrometer. The new technique was able to identify many substituted polycyclic aromatic compounds.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Processes affecting the fate of monoaromatic hydrocarbons in an aquifer contaminated by crude oil. Effects of light intensity on the phototoxicity of flouranthene to a benthic macroinvertebrate
- Abstracts: EU proposes tighter rules on ozone depleters. Estimating tropospheric lifetimes and ozone-depletion potentials of one-and two-carbon hydrofluorocarbons and hydrochlorofluorocarbons
- Abstracts: The implementation of technology transfer in Sino-foreign joint ventures. Foreign direct investment and spillovers of technology
- Abstracts: Plasticity in the thickness direction of paperboard under combined shear and normal loading. Modeling the Influence of drying conditions on the stress buildup during drying of paperboard
- Abstracts: Atmospheric mercury speciation: concentrations and behavior of reactive gaseous mercury in ambient air. Predictive methods