Methyl bromide emissions from fields partially covered with a high-density polyethylene and a virtually impermeable film
Article Abstract:
Experiments on the use of films to reduce the emissions of methyl bromide used in soil fumigation showed that the virtually impermeable film Hytibar was able to effect a low emission of methyl bromide from fumigated soils compared to high-density polyethylene (HDPE) film. This was evident in the soil samples where the Hytibar covered soil exhibited higher concentrations of methyl bromide compared to the HDPE film. But the effectivity of using the Hytibar film to contain methyl bromide emission could only be achieved if the plots were completely covered for 10 days, allowing the soil to degrade the methyl bromide and prevent its escape into the atmosphere.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Effect of soil factors on methyl bromide volatilization after soil application
Article Abstract:
A series of soil factors was shown to affect methyl bromide (MeBr) behavior in the soil-water-air phases in its volatilization into the atmosphere from soil fumigation and its volatilization rate from the soil surface. These soil factors are soil type, soil water content and bulk density. Results imply that MeBr volatilization rate may differ from one region to another or from one field to another in the same region owing to changes in soil conditions. Soil heterogeneity may also cause volatilization rate to vary from one site to another in the same field. Application and soil management techniques that can minimize volatilization are discussed.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Henry's law constant, volatilization rate, and aquatic half-life of octamethylcyclotetrasiloxane
Article Abstract:
Octamethylcyclotetrasiloxane (OMCTS) is a volatile low molecular weight compound that is used in the manufacture of silicon compounds. The presence of OMCTS poses risks to the environment and therefore, its distribution is strictly monitored. The Henry's law constant and volatilization are useful parameters for determining the distribution and effects of OMCTS in the environment. Experiments and mathematical models to measure OMCTS concentrations are presented.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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