开阳县某黄磷厂是规模较大的生产厂，该厂于1988年动工兴建，到1995年底已达年产量22000吨。现有职1429人，大部分在没有尘毒防护下作业，因此受到不同程度的危害。我们于1996年底在该厂5个测定地点对黄磷、磷化氢、五氧化二磷、氟化氢、粉尘含量进行了监测，结果有4个点的黄磷 A yellow phosphorus plant in Kaiyang County is a large-scale production plant that started construction in 1988 and has reached an annual output of 22,000 tons by the end of 1995. Existing staff of 1429 people, most of the work in the absence of dust and poison protection, and therefore subject to varying degrees of harm. We monitored the contents of yellow phosphorus, phosphine, phosphorus pentoxide, hydrogen fluoride, and dust at the five sites of the plant at the end of 1996. As a result, there were 4 points of yellow phosphorus