摘要
目的 研究制订车间空气中氰氨化钙（石灰氮）的卫生标准。 方法 研究建立了粉尘中氰氨化钙的测定方法，对生产场所作了空气浓度监测， 并对接触工人的健康状况作了横断面调查。结果 空气中氰氨化钙平均浓度低 于３．７１ｍｇ／ｍ情况下长期接触，经内科、皮肤科、五官科检查，除了普遍存在“ 醉酒反应”外，未发现与接触氰氨化钙有关的损害。结论 建议氰氨化钙的最 高容许浓度为３ｍｇ／ｍ，８ｈ时间加权平均浓度也是３ｍｇ／ｍ。
Objective To study and construct a hygienic standard of the calcium cyanamide in workshop air. Methods We established the procedure to determine calcium cyanamide in the dust. The concentrations of calcium cyanamide were measured which conducted for 4 manufacturing workshops; also we investigated the sign and symptom of workers who had exposed to calcium cyanamide. Results Workers exposure to less than 3.71mg/m of mean concentration permanently, of them any significant sign or symptom have not been observed, but a 'drunken response to alcohol' had occurred prevalently. Conclusion The recommended maximum allowable concentration is 3mg/m, the TWA is 3mg/m 8h.
出处
《职业卫生与应急救援》
2001年第3期118-120,共3页
Occupational Health and Emergency Rescue
基金
全国卫生标准委员会经费资助(劳科字93-010号)
