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通过对605名液化石油气作业工人的调查表明,工人接触浓度为1500～2000mg/m~3时,出现某些神衰症状的发生率明显增高,其他各项指标均与接触浓度及接触工龄没有关系。急性吸入毒性研究,大小鼠的最大耐受浓度大于277362.27mg/m~3,急性阈浓度大于170389.95mg/m~3。恒河猴和小鼠的慢性阈浓度均为31000mg/m~3。Ames试验阴性。建议液化石油气的最高容许浓度为1000mg/m~3,经全国劳动卫生标准分委员会审议通过。
According to the survey of 605 LPG workers, the incidence of certain symptoms of Shenyin appears to be significantly higher when workers exposed to 1500-2000mg / m3, while other indicators are not related to the exposure concentration and the length of service relationship. Acute inhalation toxicity studies showed that the maximum tolerated concentration of rats and rats was more than 277362.27mg / m ~ 3 and the acute threshold concentration was more than 170389.95mg / m ~ 3. Chronic monkeys and mice with a threshold concentration of 31000mg / m ~ 3. Ames test negative. Proposed liquefied petroleum gas maximum allowable concentration of 1000mg / m ~ 3, the National Labor and Sanitation Standards Sub-Committee examined and approved.