School of Public Health, University of Adelaide, Australia.
Faculty of Applied Sciences, Universiti Teknologi MARA, Malaysia.
Ind Health. 2018 Apr 7;56(2):166-170. doi: 10.2486/indhealth.2017-0157. Epub 2017 Dec 2.
Elbow length PVC gloves are often recommended for protection against organophosphorus pesticide (OP) exposure in agriculture. However, performance may be reduced due to high temperature, UV exposure and abrasion. We sought to assess these impacts for two OPs under normal use and reasonable worst-case scenarios. Glove permeation tests were conducted using ASTM cells with two PVC glove brands at 23°C and 45°C for up to 8 h. Technical grade dichlorvos and formulated diazinon were used undiluted and at application strength. Breakthough of undiluted dichlorvos occurred at both 23°C and 45°C, but only at 45°C for application strength. Breakthrough of diazinon was not achieved, except when undiluted at 45°C. UV-exposed and abraded gloves showed reduced performance, with the effect being approximately two-fold for dichlorvos. Only small differences were noted between glove brands. Extra precautions should be taken when handling concentrated OPs at high temperature, or when using abraded or sunlight-exposed gloves.
肘部长度的 PVC 手套通常被推荐用于农业中防止接触有机磷农药 (OP)。然而，由于高温、紫外线暴露和磨损，其性能可能会降低。我们试图在正常使用和合理的最坏情况下评估这两种 OP 的影响。使用 ASTM 细胞在 23°C 和 45°C 下对两种 PVC 手套品牌进行了长达 8 小时的渗透测试。未稀释和按应用强度使用了技术级敌敌畏和配方乐果。在 23°C 和 45°C 下，未稀释的敌敌畏均发生了突破，但仅在 45°C 下达到应用强度时才发生了突破。除了在 45°C 下未稀释的情况外，乐果没有达到突破。紫外线暴露和磨损的手套表现出性能降低，敌敌畏的效果约为两倍。在品牌之间只注意到了微小的差异。在高温下处理浓缩 OP 时，或者使用磨损或阳光暴露的手套时，应采取额外的预防措施。
