Abstract:In rural Xuanwei County, Yunnan province, women had the highest rates of the lung cancer compared with other regions in China. In order to clarify the relationship between indoor particulate matter mass concentration and lung cancer, samples were colleted in January and March, 2011. The membrane filter weighing method was used to analyze the mass concentration. The results show that the ratio of PM10 mass concentration indoor /outside (I/O) were in the range of 1.74~2.78, which indicated that indoor air pollution in Xuanwei County mainly originated from indoor pollution. The PM10 mass concentration was obviously higher during cooking than other periods and showed that cooking had a serious impact on indoor pollution. Moreover, the indoor PM10 concentrations were diverse in different fuel-using homes, with the coal-burning homes to be the highest, followed by homes used honeycomb briquette, firewood and electricity. The indoor PM2.5 mass concentrations in different fuel homes were: coal > firewood > electricity. The average indoor PM10 concentration in the homes burning coal and honeycomb briquette were higher than the national standard for the indoor air quality (150μg/m3), while the values in homes using firewood and electricity were lower than the national standard for the indoor air quality (150μg/m3). This indicated that pollution of the homes burning coal and honeycomb briquette was more serious than the homes using firewood and electricity. The average indoor PM2.5 concentrations of homes burning coal were higher than the national standard for ambient air quality (75μg/m3), while the homes using firewood and electricity were lower than the national standard for ambient air quality (75μg/m3). It indicates that fine particle pollution of the homes burning coal was heavy, but the homes using firewood and electricity were less polluted.
樊景森, 邵龙义, 王静, 王建英, 李泽熙. 云南宣威燃煤室内可吸入颗粒物质量浓度变化特征[J]. 中国环境科学, 2012, 32(8): 1379-1383.
FAN Jing-Sen, SHAO Long-Yi, WANG Jing, WANG Jian-Ying, LI Ze-Xi. Variations in mass concentrations of indoor inhalable particulates in the coal-burning indoor air in Xuanwei County, Yunnan province. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(8): 1379-1383.