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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Assessment of the Exposure of Workers to the Insecticide Imidacloprid during Application on Various Field Crops by a Hand-Held Power Sprayer
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Assessment of the Exposure of Workers to the Insecticide Imidacloprid during Application on Various Field Crops by a Hand-Held Power Sprayer

机译：手持式动力喷雾器在各种田间作物施药期间工人接触杀虫剂吡虫啉的评估

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Exposure assessment and risk assessment for imidacloprid were conducted for agricultural workers through mixing/loading and application with a power sprayer in four kinds of crop fields. The spray suspension was prepared with 10% wettable powder (250 g) for 5 min and applied on field crops for 1 h. A patch method and a personal air sampler with XAD-2 resin were used to monitor the dermal and inhalation exposure, respectively. In mixing/loading, the total dermal exposure on the whole body was 0.2 (cucumber) to 2.0 (apple) mg and the most exposed part of body was the hand (48—100% of total exposure). During the application of imidacloprid, whole dermal exposure was in the range of 2.9 (apple) to 9.5 (green pepper) mg. The primary sites exposed to pesticides were legs (51—79% of total exposure) in cucumber, green pepper, and paddy fields, whereas the primary sites were hands (35% of total exposure) in the apple field. The inhalation exposure was determined to be 0.2 (paddy) to 2.8 (cucumber) μg and 0.2 (paddy) to 3.0 (cucumber) μg during mixing/loading and application, respectively. The absorbable quantity of exposure and the margin of safety were determined for risk assessment. Workers were exposed through inhalation as 23—93 and 2—11% of the absorbable quantity of exposure during mixing and application, respectively. The margin of safety of all cases was much higher than 1, indicating the lowest possibility of risk.
机译：通过混合/装载并使用动力喷雾器在四种农作物田间对农业工人进行吡虫啉的暴露评估和风险评估。用10％可湿性粉剂（250克）制备喷雾悬浮液5分钟，并在田间作物上施用1小时。使用贴片法和带有XAD-2树脂的个人空气采样器分别监测皮肤和吸入暴露。在混合/装载过程中，整个皮肤的总皮肤暴露量为0.2（黄瓜）至2.0（苹果）mg，身体最暴露的部分是手（占总暴露量的48-100％）。在施用吡虫啉期间，整个皮肤暴露量为2.9（苹果）至9.5（青椒）mg。在黄瓜，青椒和稻田中，接触农药的主要部位是腿（占总暴露量的51-79％），而在苹果田中，主要接触部位是手（占总暴露量的35％）。在混合/加料和施用期间，吸入暴露分别确定为0.2（水稻）至2.8（黄瓜）μg和0.2（水稻）至3.0（黄瓜）μg。确定暴露的可吸收量和安全裕度，以进行风险评估。在混合和使用过程中，工人通过吸入分别暴露了可吸收暴露量的23-93％和2-11％。所有病例的安全系数均远高于1，表明发生风险的可能性最低。

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