【摘要】 为了解中国北方农村地区冬季室内外PM_2.5污染特征,选择河北唐山某农村燃煤与非燃煤室内外PM_2.5进行实验研究。结果表明:（1）燃煤采样点室内外PM_2.5分别为47.9³70.0、14.8¹45.0μg/m³,非燃煤采样点室内外PM_2.5分别为13.6²17.0、10.9¹31.0μg/m³。（2）室内外PM_2.5浓度具有一定的相关性。（3）采样期间的20d内,根据《环境空气质量标准》（GB 3095—2012）二级标准(PM_2.524h均值限值为75μg/m³),燃煤采样点室外PM_2.5超标率为10%,而非燃煤采样点为5%;根据GB 3095—2012一级标准(PM_2.524h均值限值为35μg/m³),燃煤采样点室外PM_2.5超标率为35%,而非燃煤采样点为20%;根据《建筑通风效果测试与评价标准》（JGJ/T 309—2013）规定室内PM_2.5的日均值应小于75μg/m³,燃煤采样点室内PM_2.5超标率为65%,而非燃煤采样点为35%。更多还原

【Abstract】 In order to understand the pollution characteristics of indoor and outdoor PM_2.5 in the rural areas of Northern China,one of rurals in Tangshan was studied as the sampling site.The results showed that:（1）the indoor and outdoor PM_2.5 in the coal-fired sample points were 47.9-370.0 and 14.8-145.0μg/m³.The indoor and outdoor PM_2.5 in the non-coal-fired sample points were 13.6-217.0 and 10.9-131.0μg/m³.（2）The concentrations of indoor and outdoor PM_2.5 had a certain corelation.（3）During the sampling period（20 d）,10% of the outdoor PM_2.5 in the coalfired sample points exceeded the second standard of"Environmental air quality standard"（GB 3095-2012）(PM_2.524 h mean limit was 75 g/m³),and 5% of that in the non-coal-fired sample points;35% of the outdoor PM_2.5 in the coalfired sample points exceeded the first standard of GB 3095-2012(PM_2.524 hmean limit was 35 g/m³),and 20% of that in the non-coal-fired sample points;65% of the indoor PM_2.5 in the coal-fired sample points exceeded "The standard of the measurement and evaluation for efficiency of buiding ventilation"（JGJ/T 309-2013）(PM_2.5 daily mean values was less than 75 g/m³),and 35% of that in the non-coal-fired sample points.更多还原