Increased indoor PM concentrations controlled by atmospheric dust events and urban factors

被引：39

作者：

Krasnov, Helena ^{[1
]}

Katra, Itzhak ^{[1
]}

Novack, Victor ^{[2
]}

Vodonos, Alina ^{[2
,3
]}

Friger, Michael D. ^{[3
]}

机构：

[1] Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-84105 Beer Sheva, Israel

[2] Soroka Univ, Med Ctr, Clin Res Ctr, IL-84105 Beer Sheva, Israel

[3] Ben Gurion Univ Negev, Fac Hlth Sci, Dept Publ Hlth, IL-84105 Beer Sheva, Israel

来源：

BUILDING AND ENVIRONMENT | 2015年 / 87卷

关键词：

Dust storms; Indoor; Outdoor; PM; Air quality; RESOLVED PARTICULATE DATA; AIR-QUALITY; COARSE PARTICLES; DAILY MORTALITY; SAHARAN DUST; PM2.5; CONCENTRATIONS; MEDITERRANEAN BASIN; TEMPORAL VARIATIONS; FINE PARTICLES; DESERT DUST;

D O I：

10.1016/j.buildenv.2015.01.035

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Dust storms are a common phenomenon, with significant impact on air pollution. Quantitative information on the influence of dust storms on particulate matter (PM) in the indoor environment is still lacking. Real-time PM10 and PM2.5 levels were measured simultaneously in outdoor and indoor air during dust events. A two-step multivariate analysis revealed factors controlling the PM levels. The results showed that during dust events average outdoor concentrations for PM10 and PM2.5 may reach 551 mu g m(-3) and 299 mu g m(-3), respectively. Indoor PM10 and PM2.5 levels may reach concentrations of 517 mu g m(-3) and 282 mu g m(-3), respectively. The analysis revealed a significant contribution of dust events to the indoor PM levels. The decreased in PM2.5/PM10 ratio in both environments during dust storms, indicating on 82% infiltration of the PM2.5 fraction into houses. The results serve to improve our understanding of dust storm, which may have implications for air quality and health issues. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：169 / 176

页数：8

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