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采用现场调查方法,对自贡市不同燃料及建筑类型室内空气污染现状进行研究。结果表明燃煤户室内各污染物浓度高于燃气户,两者比值以二氧化硫(14.80)及硫化氢(7.60)高。苯并(a)芘最大日平均值燃气户(6.90μg/100m3)接近燃煤户(7.25μg/100m3)的污染水平。由于受建筑类型的影响,楼房户厨房与卧室的浓度比值大于平房户,其中二氧化硫(3.83)、苯并(a)芘(3.71)、一氧化碳(2.55)最大。说明平房卧室污染重于楼房卧室。燃气户室内的氮氧化物污染与国内部份城市相比,尚处于低水平。
By means of on-site investigation, the status quo of indoor air pollution of different fuels and construction types in Zigong City was studied. The results show that the concentration of pollutants in coal combustion households is higher than that of gas households, and the ratio of the two is high with sulfur dioxide (14.80) and hydrogen sulfide (7.60). The maximum daily average of benzene (a) pyrene gas households (6.90μg / 100m3) is close to the pollution level of coal-fired households (7.25μg / 100m3). Due to the influence of the type of building, the concentration ratio of kitchen to bedroom in houses is larger than that in cottages, of which sulfur dioxide (3.83), benzo (a) pyrene (3.71) and carbon monoxide (2.55) are the largest. Bungalow bedroom pollution is more important than the building bedroom. Compared with some domestic cities, the nitrogen oxides pollution in the gas households is still at a low level.