Predicting the effect of moisture on vapor-phase sorption of volatile organic compounds to soils
Article Abstract:
An equilibrium partitioning model accurately predicts the effect of soil moisture content on vapor-phase sorption. Sorption from the vapor phase is an important factor controlling the transport of volatile organic compounds in the unsaturated zone, making accurate description of sorption from the vapor phase to soil in the unsaturated zone essential in predicting the fate of these contaminants. These results were gleaned by measuring the vapor-phase sorption of several VOCs onto seven soils at oven- and air-dried, typical field moisture and water-saturated conditions.
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:
Comparison of analytical methods for determination of volatile organic compounds in soils
Article Abstract:
Research was done at the US Army's Cold Regions Research and Engineering Laboratory comparing aqueous extraction headspace/gas chromatography and purge-and-trap gas chromatography/mass spectrometry as techniques for establishing whether soil samples contain volatile organic compounds. Given that significant differences between the two methods were only found in two cases, the aqueous extraction method would be considered advantageous for its speed and cost effectiveness.
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:
Sorption of volatile organic chemicals in plant surfaces
Article Abstract:
The absorption of several volatile organic compounds (VOC) into the cuticle surrounding a plant's surface is investigated and showed that the sorption is a function of the cuticular matrix as well as the concentration of the VOC at the gas phase. Other factors which bear on the sorption of VOCs in the cuticular matrix are equilibriation kinetics of the compounds and the metabolism of the plant.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Method development and field measurements for polar volatile organic compounds in ambient air. Monitoring methods for polycyclic aromatic hydrocarbons and their distribution in house dust and track-in soil
- Abstracts: Modeling the rate of cadmium and selenite adsorption on micro- and mesoporous transition aluminas. Kinetics of oxidation of selenite to selenate in the presence of oxygen, titania, and light
- Abstracts: Sorption of toxic organic compounds on wastewater solids: mechanism and modeling. Impact of chlorophenols and chloroanilines on the kinetics of acetoclastic methanogenesis
- Abstracts: Symmetries and civilizations. Galileo's cicada. Dining on ammonia
- Abstracts: Health of a continent. United Kingdom to set air quality emission standards. Europe to target vehicle emissions in new air quality strategies