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KMID : 1024520070160121463
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Journal of the Environmental Sciences
2007 Volume.16 No. 12 p.1463 ~ p.1468
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Transformation for 1,3-Dichloropene of Soil Fumigant in Water and Soil
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Kim Jung-Ho
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Abstract
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Emission of methyl bromide(MeBr) of soil fumigant was implicated in stratospheric ozone depletion. To determine the environmental fate for 1,3-dichloropene(1,3-D) of alternatives fumigants for MeBr, this paper researched the transformation for 1,3-D in water and soil. Half lives of cis-1,3-D in water with first-order kinetics are 9.9day and 1.7day at , half lives of trans-1,3-D are 8.6day and 1.5day at , respectively. Transformation for 1,3-D in water at high temperature faster then at low temperature. Hydrolysis for 1,3-D in water are unaffected at , but hydrolysis for 1,3-D at pH 11.5 higher then at . Half lives of cis-1,3-D in soil are 11.5day and 7.7day at 3% and 10% of soil moisture, half lives of trans-1,3-D are 9.9day and 6.9day at 3% and 10% of soil moisture, respectively. Transformation for 1,3-D in water increased with increasing soil moisture. Transformation for trans-1,3-D isomer are more rapid then cis-1,3-D isomer in water and soil. This research has identified that transformation for 1,3-dichloropropene are affected by temperature, pH, soil moisture, and isomer of cis and trans in water and soil.
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KEYWORD
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Fumigant, Volatile Organic compounds, ozone-depleting chemicals, Methyl bromide, 1, 3-dichloropropene, Transformation
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