토양 물리화학적 특성에 따른 Phorate 및 그 대사물질의 잔류양상
Residue Patterns of Phorate and Its Metabolites Based on Soil Physicochemical Properties
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초록
Phorate is one of the most widely used granular pesticides applied to soil in Korea. However, due to its characteristic of increased toxicity as it metabolizes, there is a need for further research on the behavior of its metabolites, which is currently insufficient. To prevent cases of non-compliance in agricultural products and to mitigate pesticide runoff into the environment, an accurate study of its fate is essential. This study analyzed the half-lives, physicochemical properties, and heavy metal content of soils collected from three agricultural sites in Korea, using these factors to assess the residue patterns of phorate and its metabolites. Results from a laboratory soil persistence test showed that while the parent compound of phorate rapidly metabolizes, its metabolites, such as phorate-sulfoxide and phorate-sulfone, were observed to increase. Additionally, different half-life patterns were identified in soils with varying physicochemical properties and heavy metal contents, suggesting that factors such as clay content and saturation influence the degradation rates of phorate.
Abstract
Phorate is one of the most widely used granular pesticides applied to soil in Korea. However, due to its characteristic of increased toxicity as it metabolizes, there is a need for further research on the behavior of its metabolites, which is currently insufficient. To prevent cases of non-compliance in agricultural products and to mitigate pesticide runoff into the environment, an accurate study of its fate is essential. This study analyzed the half-lives, physicochemical properties, and heavy metal content of soils collected from three agricultural sites in Korea, using these factors to assess the residue patterns of phorate and its metabolites. Results from a laboratory soil persistence test showed that while the parent compound of phorate rapidly metabolizes, its metabolites, such as phorate-sulfoxide and phorate-sulfone, were observed to increase. Additionally, different half-life patterns were identified in soils with varying physicochemical properties and heavy metal contents, suggesting that factors such as clay content and saturation influence the degradation rates of phorate.
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