【摘要】 太原市不同居室类型冬季燃煤时室内污染物浓度较高。改用煤气后，ＮＯｘ升高１．４～５倍，ＳＯ２降低０．６倍，ＴＳＰ降低了２倍，Ｂ（ａ）Ｐ降低了０．３～０．７倍，ＣＯ变化不大。更多还原

【Abstract】 When coal was used as domestic fuel in winter in various typies of houses in Taiyuan City, the concentration of indoor air pollutants,Nox,SO2,CO and TSP was higher.After gas was used, concentration of NOx increased at 1.4-5 times,but concentration of SO2 and TSP decreased more than 0. 6 times and 2 times respectively. Concentration of CO had no obvious change.更多还原