Organic compound characterization and source apportionment of indoor and outdoor quasi-ultrafine particulate matter in retirement homes of the Los Angeles Basin.
Organic compound characterization and source apportionment of indoor and outdoor quasi-ultrafine particulate matter in retirement homes of the Los Angeles Basin.
复制标题
DOI：
10.1111/j.1600-0668.2009.00620.x
复制
发表时间：
2010-02
期刊：
影响因子：
5.8
通讯作者：
Sioutas C
中科院分区：
文献类型：
--
作者：
Arhami M;Minguillón MC;Polidori A;Schauer JJ;Delfino RJ;Sioutas C
作为心血管健康和空气污染研究 (CHAPS) 的一部分，在加利福尼亚州洛杉矶盆地的四个退休社区的室内和室外环境中测量了准超细颗粒物 (PM0.25) 及其成分。本文重点研究准超细 PM 的来源、有机成分以及室内外关系的表征。大多数测得的多环芳烃、藿烷和甾烷的平均室内/室外比率接近或略低于1，相应的室内外相关系数（R）始终为正，且大部分为中等强度（多环芳烃的中位R为0.60，藿烷和甾烷的中位R为0.74）。这可能反映了室外源对室内多环芳烃、藿烷和甾烷的可能影响。相反，室内正构烷烃和正构烷酸可能受到室内来源的影响。化学质量平衡 (CMB) 模型适用于准超细 PM 的室内和室外特定化学测量。在所有室内和室外颗粒物的分配来源中，车辆排放是对所有地点测量的 PM0.25 质量浓度影响最大的来源（平均 24-47%）。
Quasi-ultrafine PM (PM0.25) and its components were measured in indoor and outdoor environments at four retirement communities in the Los Angeles basin, CA, as part of the Cardiovascular Health and Air Pollution Study (CHAPS). The present paper focuses on the characterization of the sources, organic constituents and indoor and outdoor relationships of quasi-ultrafine PM. The average indoor/outdoor ratios of most of the measured PAHs, hopanes and steranes were close to- or slightly lower than 1, and the corresponding indoor-outdoor correlation coefficients (R) were always positive and, for the most part, moderately strong (median R was 0.60 for PAHs and 0.74 for hopanes and steranes). This may reflect the possible impact of outdoor sources on indoor PAHs, hopanes and steranes. Conversely, indoor n-alkanes and n-alkanoic acids were likely to be influenced by indoor sources. A Chemical Mass Balance (CMB) model was applied to both indoor and outdoor speciated chemical measurements of quasi-ultrafine PM. Among all apportioned sources of both indoor and outdoor particles, vehicular emissions was the one contributing the most to the PM0.25 mass concentration measured at all sites (24–47% on average).
登录
查看更多内容
影响因子：
11.4
作者：
Fraser, MP;Cass, GR;Rasmussen, RA
通讯作者：
Rasmussen, RA
超铁颗粒在空气颗粒质量与心血管健康之间关联中的潜在作用。
影响因子：
10.4
作者：
Delfino RJ;Sioutas C;Malik S
通讯作者：
Malik S
影响因子：
5
作者：
Kuhn, T;Biswas, S;Sioutas, C
通讯作者：
Sioutas, C
影响因子：
11.4
作者：
Arhami, M;Kuhn, T;Sioutas, C
通讯作者：
Sioutas, C
影响因子：
11.4
作者：
Hughes, LS;Allen, JO;Cass, GR
通讯作者：
Cass, GR