Monday, 10 April 2017 12:55

Ambient and indoor air suspended particulate matter in Helwan homes

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Ambient and indoor air suspended particulate matter in Helwan homes
Alia Abd El-Shakoura, Ahmad Salem El-Ebiarieb, Yasser Hassan Ibrahima, Ahmad Esmat Abdel Moniemb, Asmaa Mohamed El-Mekawya
a Air Pollution Department, National Research Centre, Giza, Egypt
b Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt
Address for correspondence:
Asmaa Mohamed El-Mekawy, Air Pollution Department, Division of Environmental Research, National Research Centre, 33 EL Bohouth St., Dokki, P. O. 12622, Giza, Egypt. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.; Fax: +20 2 33370931; Tel: +20 2 33371362
Abstract:
Suspended Particulate Matter (SPM) measurements in both indoor and outdoor air of residential homes, located in four residential sectors of Helwan city, south Cairo, Egypt, were conducted during one year (Sep. 2010 to Aug. 2011). The highest ambient SPM level was determined in site 2 (Helwan city center/commercial/residential area) reaching 320.32±87.01 μg/m3. The mean annual concentration of SPM in the atmosphere of Helwan city was 256.13 μg/m3. The maximum annual mean concentration of SPM in the indoor air was recorded at site 4 (Torra/ popular residential area), reaching 202.75±47.2 μg/m3. The mean annual concentration of SPM in all of the investigated homes in Helwan city was 152.25μg/m3. Indoor annual mean concentration of SPM was higher than outdoor (I/O ratio) at site 3 during autumn season reaching 1.03 which indicate the role of indoor sources of pollution at this site. In conclusion the study clarifies the impact of indoor and outdoor sources of air pollution on air quality inside homes and their effects on residences.

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