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调查对象和方法一、调查对象:1.污染区:选启新、城子庄小学的10～13岁学生,共258名,男130名,女128名;位于钢厂、焦化厂、水泥厂和电厂附近,经多指标检测是唐山市大气污染严重的地区。2.清洁区:选陵园和学院南路小学的10～13岁学生,共258名,男130名,女128名,位于255医院、矿冶学院附近,周围没有大的厂矿企业,经多指标检测属新建清洁居民区。二、调查方法:采取整群抽样法,按教科书规定标准化方法的要求留取唾液,进行唾液溶菌酶含量的检测。
Survey objects and methods 1, the survey: 1. Pollution zone: selected new, Chengzhuang Zhuang primary school 10 to 13-year-old students, a total of 258, 130 men and 128 women; located in steel mills, coking plants, cement plants and Near the power plant, the multi-index detection is an area with serious air pollution in Tangshan City. 2. Clean Area: Select the cemetery and College South Primary School 10 to 13-year-old students, a total of 258, 130 men and 128 women, located in 255 hospitals, Institute of Mining and Metallurgy, surrounded by no large factories and mines, the multi-index test Is a new clean residential area. Second, the survey method: cluster sampling method, according to the provisions of the textbook standardized method of saliva, saliva lysozyme content detection.