文章基本信息

标题：Chemical Composition, Characterization and Factors Affecting Household Dust (<20 µm) in Greater Cairo, Egypt
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作者：Salwa K. Hassan ; Ahmed A. El-Abssawy ; Mamdouh I. Khoder 等
期刊名称：Open Journal of Air Pollution
印刷版ISSN：2169-2653
电子版ISSN：2169-2661
出版年度：2015
卷号：04
期号：04
页码：184-197
DOI：10.4236/ojap.2015.44016
语种：English
出版社：Scientific Research Publishing
摘要：Adverse health and environmental effects of household dust are derived from their chemical composition and properties. In this study, household, stairs and entryway dust ( , , Cl- , , Na+, K+, Ca2+ and Mg2+ in the household and entryway dust was found in urban area. was abundant in household, entryway and stairs dust followed by Cl- and . Its average concentrations were 21.38, 14.57 and 15.83 mg/g, respectively. The household/entryway (I/O) concentration ratios of measured ion components indicate that these species might derive from indoor sources, although outdoor sources could be present as well. pH values of household, stairs and entryway dust ranged from 6.43 to 8.53, indicating that these dusts brought a large amount of crustal species, and might alleviate the tendency of acidification. The relationships between the concentrations of acidic components ( and ) and basic components (, Ca2+ and Mg2+) in household, stairs and entryway dust confirm that the acidity of dust is neutralized. Ca2+ and in household and stairs dust and Ca2+ and Mg2+ in entryway dust are the most dominant neutralization substances.
关键词：Household;Stairs and Entryway Dust;Chemical Composition and Characterization;Greater Cairo;Egypt