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目的了解当前住宅室内空气PM2.5和PM10的污染水平及其与室外大气浓度的关系。方法选择10户市区常住家庭,采用单孔多段冲击式颗粒物采样仪进行室内外空气PM2.5、PM10浓度的同时监测。结果非采暖期室内空气PM2.5和PM10的浓度范围分别为27.0～272.9μgm3和42.9～309.6μgm3;采暖期分别为20.7～251.4μgm3和34.0～283.9μgm3。PM2.5与PM10浓度之间呈良好的直线相关关系。室内外颗粒物浓度的相关关系在非采暖期和采暖期有所不同。结论住宅室内空气颗粒物污染比较严重,今后应进一步研究室内颗粒物的污染规律,探讨颗粒物对人群健康的影响。
Objective To understand the pollution level of indoor residential air PM2.5 and PM10 and its relationship with outdoor atmospheric concentration. Methods Ten households in urban areas were selected for permanent monitoring of PM2.5 and PM10 concentrations in indoor and outdoor air using a single-hole multistage impact particle sampler. Results The concentrations of PM2.5 and PM10 in indoor air during non-heating period were 27.0 ~ 272.9μgm3 and 42.9 ~ 309.6μgm3, respectively. The heating periods were 20.7 ~ 251.4μgm3 and 34.0 ~ 283.9μgm3, respectively. PM2.5 and PM10 concentrations showed a good linear correlation between. Indoor and outdoor particulate matter concentration in the non-heating period and heating period are different. Conclusion Indoor residential air pollution is more serious. In the future, indoor air pollution should be further studied and the effect of particulate matter on human health should be explored.