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作者对某厂接触氨的407名工人(磷化车间247名,合成车间160名)的慢性鼻炎的发病情况进行了调查,并与240名无氨接触史的职工进行对照。79～82年空气中氨浓度的测定:磷化车间为l7.0～42.0mg/m~3(仅个别月份超标);合成车间为15.7～7.0mg/m~3。调查结果表明:接触组慢性鼻炎总患病人数为189人(46.44％),对照组为55人(22.91％),经统计学处理,两组差异非常显著(P<0.01)。其中接氨组患慢性单纯性鼻炎53人(13.05％),对照组23
The authors investigated the incidence of chronic rhinitis among 407 workers exposed to ammonia in a factory (Phosphatizing Workshop, 160 Synthetic Workshop) and contrasted with 240 non-ammonia exposure workers. Determination of ammonia concentration in air from 79 to 82 years: Phosphate plant was l7.0 ~ 42.0mg / m ~ 3 (only a few months exceeded); Synthetic plant was 15.7 ~ 7.0mg / m ~ 3. The results showed that the total number of chronic rhinitis in the contact group was 189 (46.44%) and 55 (22.91%) in the control group, and the difference was significant (P <0.01). Among them, 53 patients (13.05%) with chronic simple rhinitis received ammonia group and 23 in control group