摘要
人体对大气颗粒物的真实暴露包括室外直接暴露及由室外穿透进入室内所形成的暴露。穿透行为影响颗粒物浓度、组成和粒径分布,研究颗粒物室内外关系有助于理解和纠正由此带来的"暴露误差"。该文综述了质量平衡模型、统计模型和源解析受体模型等方法在研究颗粒物(组分)室内外关系中的应用及关键问题。二重源解析技术为解析室内颗粒物来源提供了新思路,该文阐述了其存在问题和发展趋势。
Personal exposure to ambient airborne particulate matter is composed by exposure to indoor particulate matter （PM） of outdoor origin and direct outdoor exposure. After penetrating into indoors, outdoor PM generally showed changed characteristics, including mass concentration, size distribution as well as components, which are contributing to the exposure measurement errors when ambient concentrations are used as real exposure for human epidemiological studies. This paper reviewed adopted methods in studying indoor-outdoor relationships for PM and its various components, mainly including mass balance model, statistic model and receptor model for source apportionment, to better understand existing exposure error and improve exposure-risk assessment of ambient particulate matter. Meanwhile, several factors influencing indoor PM concentration of outdoor origin were pointed out by parameter analysis. In addition, nested source apportionment technique was introduced to offer a new option for further study on indoor PM sources.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2010年第8期737-741,共5页
Journal of Environment and Health
基金
国家环保公益性行业专项(200709048)
关键词
空气污染
颗粒物
室内外关系
质量平衡模型
穿透
室内源解析
Air pollution
Particulate matter
Indoor-outdoor relationship
Mass balance model
Penetration
Indoor source apportionment
