星级宾馆室内空气PM_(10)和PM_(2.5)的污染水平及影响因素  

Pollution of particulate matter(PM_(10),PM_(2.5)) and influencing factors in star-rated hotels

作　　者：王巍[1] 李若岚[1] 柴义[1] 张晓雪[1] 张振伟[1] 李博洋[1] 吕彦[1] 潘小川[2] 

机构地区：[1]北京市西城区疾病预防控制中心环境卫生科,北京100120 [2]北京大学公共卫生学院

出　　处：《环境与健康杂志》2015年第10期890-891,共2页Journal of Environment and Health

基　　金：北京市西城区区委组织部优秀人才培养项目(C1321)

摘　　要：目的了解星级宾馆室内颗粒物污染水平,分析室内颗粒物浓度的影响因素。方法选择北京市西城区四、五星级宾馆共6家,于2014年春、夏、秋、冬季分别进行1次采样,监测室内外空气PM_(10)、PM_(2.5)浓度。结果调查的星级宾馆客房室内空气PM_(10)、PM_(2.5)平均浓度均低于标准限值。室外大气颗粒物浓度高于室内,PM_(2.5)在PM_(10)中所占比例低于室内,差异有统计学意义(P<0.05)。不同楼层客房的空气颗粒物浓度差异无统计学意义(P>0.05)。不同季节客房的室内PM_(10)、PM_(2.5)浓度不同,秋季污染物浓度较高;开窗后客房室内颗粒物浓度高于开窗前,差异均有统计学意义(P<0.05)。结论本次调查的宾馆室内颗粒物浓度与楼层无关,秋季污染物浓度高于其他季节。在室内无污染源的情况下,室内颗粒物污染主要来源于室外。Objective To understand the pollution levels of particulate matter（PM10, PM2.5） in star-rated hotels and the influencing factors. Methods Six four-star or five-star hotels in Xicheng district in Beijing were chosen in this study, indoor and outdoor PM10 and PM2.5 was monitored in different seasons in 2014. Results The average concentrations of outdoor PM10 and PM2.5 was higher than that of indoor（P〈0.05）. The ratio of indoor PM2.5 in PM10 was higher compared with outdoor（P〈0.05）. The average concentrations of PM10 and PM2.5and the ratio of PM2.5 in PM10 indoor was no significant difference between different floors.The average concentrations in different seasons were not the same. The average concentrations of indoor PM10 and PM2.5 were increased by opening windows. Conclusion The concentrations of indoor PM10 and PM2.5 are not related with floors, the average concentration in autumn was higher than those in other three seasons. When there is no indoor pollution source, the particulate matters mainly come from outside.

关 键 词：空气污染 室内 颗粒物 季节 

分 类 号：R122.2[医药卫生—环境卫生学]