广州大学城学生PM_(2.5)暴露水平研究  

Exposure assessment of PM_(2.5) for the students in Guangzhou university town

作　　者：王佳[1,2] 郑君瑜[2] 

机构地区：[1]环境保护部华南环境科学研究所环境健康研究中心,广东广州510655 [2]华南理工大学环境与能源学院,广东广州510006

出　　处：《中国环境科学》2013年第S1期137-143,共7页China Environmental Science

基　　金：教育部新世纪优秀人才支持计划(NCET-08-0208)

摘　　要：采用主动采样颗粒物分析仪(pDR-1500)于2012年2~3月对广州大学城学生活动的各典型微环境室内外PM2.5浓度同步监测,同时对大学城学生每日时间-活动模式进行问卷调查,评价大学城学生PM2.5潜在暴露剂量和暴露浓度并从个体特征角度探讨其影响因素.结果表明:大学城学生单位体重、个体PM2.5潜在暴露剂量和日均PM2.5暴露浓度分别是(15.9±3.4)μg/(kg·d),(882.3±241.0)μg/d和(102.8±8.0)μg/m3.室内、室外和交通环境分别占大学城学生单位体重PM2.5潜在暴露剂量的74.3%、24.9%和0.8%.影响大学城学生个体PM2.5潜在暴露剂量的因素为体重】性别】年龄】暴露浓度】工作日/周末;影响大学城学生单位体重PM2.5潜在暴露剂量的因素为暴露浓度】年龄】工作日/周末】性别;专业与二者均没有显著相关关系.Indoor and outdoor PM2.5 were monitored simultaneously using pDR-1500monitors in typical microenvironments in Guangzhou university town from February to March, 2012, and a survey was also conducted to investigate the time-activity patterns of the university students. Potential exposure doses and exposure concentrations of PM2.5 for the students in the university town were estimated and the possible influencing factors were investigated. The potential exposure dose(DI) and daily exposure concentration of PM2.5 for the students in the university town were(882.3±241.0)μg/d and(102.8±8.0)μg/m3, respectively; the potential exposure dose of PM2.5 for the students in the university town per unit of body weight(DW) was(15.9±3.4)μg/(kg·d). PM2.5 exposure doses for the students in the university town was contributed by indoor, outdoor and traffic environments by 74.3%, 24.9% and 0.8%, respectively. The influencing factors on the DI were shown as: body weight > gender > age > exposure concentration > weekdays/weekends, while the influencing factors on the DW were shown as: exposure concentration > age > weekdays/weekends > gender. However, major was not a significant factor on the potential exposure doses of PM2.5.

关 键 词：PM2.5 暴露评价 时间-活动模式 大学生 

分 类 号：X503.1[环境科学与工程—环境工程]