工业毒物最高容许浓度研究动向 近年来世界卫生组织(WHO)提出了制订容许浓度的“两步法”。第一步是制订以健康为基准的建议标准,第二步是依据本国的情况,就工程技术、经济水平、工人接触时间等因素订出实用的卫生标准。就是说,首先要依据毒物的毒理实验,志愿者试验和现场流行病学资料,主要从保护工人本身及其下一代的健康为出发点,确定其容许限值。世界卫生组织已发表了铅、汞、镉、锰、甲苯、二甲苯、二硫化碳、三氯乙烯、马拉硫磷、西维因、林丹、二硝基邻甲酚、棉尘等的职业性接触限值。迄今各国已制订的毒物卫生标准达一千余个。西德的卫生标 The highest allowable concentration of industrial toxicant research trends In recent years, the World Health Organization (WHO) proposed the development of allowable concentration of “two-step method.” The first step is to formulate health-based recommendations. The second step is to formulate practical hygiene standards based on factors such as engineering skills, economic level and worker exposure time. That is to say, we must first determine the allowable limit based on toxicological toxicology experiments, volunteer tests and on-site epidemiological data, mainly from the point of protecting the health of workers themselves and their next generation. WHO has published occupational exposure to lead, mercury, cadmium, manganese, toluene, xylene, carbon disulfide, trichlorethylene, malathion, cevyline, lindane, dinitro-o-cresol, cotton dust and the like Limits. Up to now, more than a thousand poison health standards have been formulated in various countries. West Germany’s health standard