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Determination of the Environmental Fate and Transport of Methyl Bromide Entry ID: USDA0574 |
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Summary
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Abstract:
The primary objective of "Determination of the Environmental Fate and Transport of Methyl Bromide" is to determine soil reactions, the transport characteristics, volatile emissions and mass partitioning of methyl bromide to assess the environmental impacts of the agricultural use of methyl bromide. This research will provide the necessary information to determine, scientifically, the environmental effects from the agricultural use of methyl bromide. Collection Organization: University of California, Riverside Collection Methodology: Field experiments have been conducted to quantity methyl bromide emissions. The field studies were conducted on a 10-acre plot; the plot was covered with a tarp for the first experiment, and the soil left bare for the second experiment. The results of the first experiment, in which a mass balance was conducted, indicated that approximately 40% of the applied methyl bromide volatilized into the atmosphere. Very preliminary analyses of the data from the second (non-tarped) experiment indicate that approximately 30-40% of the applied methyl bromide volatilzed. Laboratory column studies have demonstrated that methyl bromide emissions can be siginificantly reduced by the addition of water to soil. Collection Frequency: Ongoing. Update Characteristics: Ongoing. LANGUAGE: English ACCESS/AVAILABILITY: Data Center: University of California, Riverside Dissemination Media: Available in hard copy publications. Access Instructions: Contact the data center Access Restrictions: None |
| N: 42.51 | S: 32.02 | E: -113.61 | W: -124.9 |
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Temporal Coverage
| Start Date: 1993-01-01 |
| Stop Date: 1996-12-31 |
Location Keywords
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CONTINENT
> NORTH AMERICA
> UNITED STATES OF AMERICA
> CALIFORNIA
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Science Keywords
| AGRICULTURE >AGRICULTURAL CHEMICALS >PESTICIDES [Definition] |
| AGRICULTURE >SOILS >SOIL ABSORPTION [Definition] |
| AGRICULTURE >SOILS >SOIL MOISTURE/WATER CONTENT [Definition] |
| ATMOSPHERE >AIR QUALITY >EMISSIONS [Definition] |
| ATMOSPHERE >ATMOSPHERIC CHEMISTRY >TRACE GASES/TRACE SPECIES >METHYL BROMIDE [Definition] |
| LAND SURFACE >SOILS >SOIL ABSORPTION [Definition] |
| LAND SURFACE >SOILS >SOIL CHEMISTRY [Definition] |
| ATMOSPHERE >ATMOSPHERIC CHEMISTRY >HALOCARBONS AND HALOGENS >METHYL BROMIDE [Definition] |
ISO Topic Category
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FARMING
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE ENVIRONMENT GEOSCIENTIFIC INFORMATION |
Quality
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Standard scientific protocols used; EPA Best Lab Practices standards applied where possible in analysis. |
Keywords
| AGRICULTURE AND FOOD SECURITY |
| Agriculture And Food Security > Agricultural Production > Agricultural Chemicals |
| Environmental Protection > Pollution > Air Pollution |
| Land And Freshwater Resources > Soils > Soil Chemistry |
| CROP MANAGEMENT |
| ENVIRONMENTAL POLLUTION HAZARDS |
| HUMAN AND ENVIRONMENTAL HEALTH |
| METHYL BROMIDE |
| SOIL ABSORPTION |
| SOIL CONTAMINATION |
| SOIL FUMIGATION |
| SOIL POLLUTION |
| SOIL TRANSPORT |
| VOLATILIZATION |
Originating Center
| UCR |
Data Center
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Environmental Science, College of Natural and Agricultural Sciences, University of California, Riverside
[Information]
Data Center URL: http://envisci.ucr.edu/
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U.S. Salinity Laboratory, Agricultural Research Service, U. S. Department of Agriculture
[Information]
Data Center URL: http://www.ars.usda.gov/pwa/riverside/gebjsl
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Personnel
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MARYLYNN
V.
YATES Role: TECHNICAL CONTACT Phone: 909-787-5488 Fax: 909-787-2954 Email: mvyates at ucrac1.ucr.edu Contact Address: University of California College of Agricultural Sciences Soil and Environmental Sciences 135 Bourns Hall City: Riverside Province or State: CA Postal Code: 92521 Country: USA |
Publications/References
ADDITIONAL REFERENCES:
Gan, J., Yates, S.R., Spencer, W.F. and Yates, M.V. 1994.
Automated headspace analysis of fumigants 1,3-dichloropropene
and methyl isothiocyanate on charcoal sampling tubes. J.
Chromatography A 684:121-131.
Gan, J., Yates, S.R., Anderson, M.A., Spencer, W.F., Ernst,
F.F., and Yates, M.V. 1994. Effects of soil properties on
degradation and sorption of methyl bromide in soils. Chemosphere
29:2685-2700.
Gan, J., Yates, S.R., Spencer, W.F., and Yates, M.V.
Optimization of analysis of methyl bromide on charcoal sampling
tubes. J. Agric. and Food Chem., in press.
Yates, S.R., Ernst, F.F., Gan, J., and Spencer, W.F..
Quantifying methyl bromide losses from agricultural fields.
Gan, J., Yates, S.R., Spencer, W.F. and Yates, M.V. 1994.
Automated headspace analysis of fumigants 1,3-dichloropropene
and methyl isothiocyanate on charcoal sampling tubes. J.
Chromatography A 684:121-131.
Gan, J., Yates, S.R., Anderson, M.A., Spencer, W.F., Ernst,
F.F., and Yates, M.V. 1994. Effects of soil properties on
degradation and sorption of methyl bromide in soils. Chemosphere
29:2685-2700.
Gan, J., Yates, S.R., Spencer, W.F., and Yates, M.V.
Optimization of analysis of methyl bromide on charcoal sampling
tubes. J. Agric. and Food Chem., in press.
Yates, S.R., Ernst, F.F., Gan, J., and Spencer, W.F..
Quantifying methyl bromide losses from agricultural fields.
Creation and Review Dates
DIF Creation Date:
2005-09-12
Last DIF Revision Date:
2007-06-29
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