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对生活在烧煤气、液化气和煤等不同燃料环境中的11～13岁学龄儿童进行了SO_2个体接触量的监测。结果表明,在三种燃料中,燃煤产生的SO_2对居室内空气污染最严重,已超过大气污染水平。在该环境中生活的小学生,SO_2个体接触平均浓度达到0.563mg/m~3,明显高于燃气组儿童。
The SO 2 individual exposure monitoring was conducted for 11-13-year-old school-age children living in different fuel environments such as coal gas, liquefied gas and coal. The results show that among the three kinds of fuels, SO 2 produced by coal combustion has the most serious indoor air pollution, exceeding the level of air pollution. In the primary school students living in this environment, the average contact concentration of SO 2 reached 0.563 mg / m 3, which was significantly higher than that of gas group children.