摘要
目的探讨室外环境与室内人员活动/行为对大学生公寓内细颗粒物PM2.5污染的影响,为保护大学生身体健康提供科学依据。方法对北京市大兴区某高校校园9间大学生公寓室内外PM2.5浓度实时连续监测7 d,同时对大学生的时间—行为活动模式进行问卷调查。结果公寓是大学生最主要的室内活动场所,每天在公寓内的时间为13.30h,占55.4%。公寓内PM2.5日均体积质量比范围为39.3~584.1μg/m^3,超标率为66.7%~85.7%;室外PM2.5日均体积质量比范围为76.5~493.2μg/m^3,超标率为100%;室内外日均PM2.5体积质量比I/O比均值为0.84。相关分析结果表明,公寓内PM2.5浓度与室外浓度、室内外温差、室外相对湿度、风速的相关均有统计学意义(r值分别为0.792,-0.535,0.634,-0.547,P值均<0.01)。公寓内人员活动/行为影响室内PM2.5浓度和I/O比(P值均<0.05)。结论在室外环境条件和室内人员的综合影响下,大学生公寓内PM2.5污染严重。应采取适当措施降低大学生公寓内PM2.5暴露水平。
Objective This study was to explore the influence of outdoor environment and indoor personnel activities/behavior on PM2.5 pollution in college student apartments, and to provide scientific reference for protecting physical health of college students. Methods Indoor and outdoor PM2.5 concentrations was measured for 7 days in 9 college student apartments in Daxing District of Beijing; meanwhile, the time-behavior pattern of college students was investigated by the questionnaire. Results The apartment is the most important indoor environment for college students, and they spent 13.30 h per day staying in the apartment, accounting for 55.4%. The range of indoor PM2.5 24 h-average concentration was 39.3-584.1 μg/m-3, the over-standard rate is from 66.7% to 85.7%; Outdoor PM2. 5 24 h-average concentration was in the range of 76. 5-493. 2 μg/m-3, the over-standard rate is100%; the average of I/O ratio for indoor and outdoor PM2.5 24 h-average concentration was 0.84 during sampling period. SPSS statistical analysis results showed that indoor PM2. 5 concentration was significantly correlated with outdoor PM2. 5 concentration,the temperature difference between indoor and outdoor, outdoor relative humidity and wind speed（ r = 0. 792,-0. 535,-0. 634,-0.547, P〈0.01）; the influence of indoor personnel activities/behavior on indoor PM2.5 concentration and I/O ratio was also important（ P〈0.05）. Conclusion Influenced by outdoor environment and indoor personnel, indoor PM2.5 pollution is serious in college student apartments. People should take appropriate measures to reduce indoor PM2. 5 pollution in the college student apartments.
出处
《中国学校卫生》
CAS
北大核心
2017年第7期1063-1065,共3页
Chinese Journal of School Health
基金
北京市教委科技计划项目(KM201410016014)
北京建筑大学科学研究基金项目(331613017)
关键词
环境污染
因素分析
统计学
公共卫生
学生
Environmental pollution
Factor analysis
statistical
Public health
Students
