大气萘、邻苯二甲酸酐和顺丁烯二酸酐污染及刺激作用

Air Pollution of Naphthalene, Phthalic Anhydride and Maleic Anhydride and Their Irritation

某化工厂排出的萘、邻苯二甲酸酐和顺丁烯二酸酐等刺激性气体污染了某地区大气环境,并超过苏联的卫生标准。该气体对人眼和呼吸道具有刺激作用,距该厂100米以内居民流泪、呛人、刺眼等症状发生较多。建议我国在建立这种刺激性气体卫生标准时,除应进行大气监测外,还应考虑到污染物对人的刺激作用阈。

Naphthalene, phthalic anhydriae ana Maleic anhydride gasses were emitted from a chemical factory and irritated neibouring inhabitant. We detected these substances in the leeward direction of 300 m far from the factory, and found that the maximum concentration and mean daily Concentration of naphthalene was 0.007 and 0.020 mg/m3, for the maleic anhydride, it was 0.39 and 0.55 mg/m3. These concentrations all exceeded the standard of USSR and irritated the eyes and upper respiratory tract and made a bad hygienic condition to the neighbouring inhabitant. The severe polluted radius was 500 m, when in the bad meteorologic circumstance, the polluted radius will be no less than 1 km.