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Atmosphere 2015, 6(7), 879-890; doi:10.3390/atmos6070879

Insights into Indoor/Outdoor PM Concentration Ratios due to Dust Storms in an Arid Region

1
Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
2
Department of Public Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
*
Author to whom correspondence should be addressed.
Academic Editor: Pasquale Avino
Received: 13 May 2015 / Revised: 11 June 2015 / Accepted: 17 June 2015 / Published: 25 June 2015
(This article belongs to the Special Issue Indoor and Outdoor Air Quality)
View Full-Text   |   Download PDF [3435 KB, uploaded 25 June 2015]   |  

Abstract

Dust storms have impacts on both human and physical environments, associated with an increase in atmospheric particulate matter (PM) concentrations. Most studies on exposure to PM have focused on the outdoor air, while information on indoor pollution, is still lacking. The aim of this study was to examine the impact of desert dust events on PM concentrations in indoor environments. A total of over 200 real time measurements of PM were conducted in houses in the Negev Desert during dust storms. Indoor and outdoor PM concentrations were characterized, as well as the relationships between the two datasets. The findings indicated that atmospheric PM10 concentrations can increase from 20–120 μg·m−3 on non-dust days to more than 1500 μg·m−3 during dust events. Indoor concentrations can reach as high as 1000 μg·m−3. The calculated indoor/outdoor (I/O) PM ratio ranged from 0.79 for low-level storms to 0.58 during stronger events. Indoor PM concentrations were found to be dependent on the dust storm intensity (low, medium, high) and duration with a time lag. The information obtained in this study is critical for assessment of policy interventions to reduce exposure risk and health effects due dust storms. View Full-Text
Keywords: PM; indoor; outdoor; dust storms; spatial distribution; arid areas PM; indoor; outdoor; dust storms; spatial distribution; arid areas
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Krasnov, H.; Katra, I.; Friger, M.D. Insights into Indoor/Outdoor PM Concentration Ratios due to Dust Storms in an Arid Region. Atmosphere 2015, 6, 879-890.

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