干旱区生态环境知识资源中心(Arid): Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment

Arid

DOI	10.3389/fenvs.2021.666678
	Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment
	Hamdan, Nasser M.; Alawadhi, Hussain; Shameer, Mohamed
通讯作者	Hamdan, NM (corresponding author), Amer Univ Sharjah, Dept Phys, Sharjah, U Arab Emirates. ; Hamdan, NM (corresponding author), Univ Sharjah, Ctr Adv Mat Res, Sharjah, U Arab Emirates.
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2021
卷号	9
英文摘要	We have conducted a comprehensive sampling campaign of PM10 pollutants at a site next to a major highway, using standard protocols. Particulate matter (PM) total mass, elemental and chemical/mineral compositions of the fine and coarse fractions of traffic-related PM pollutants were determined using several complementary techniques, including gravimetric analysis, x-ray fluorescence, scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction. The PM mass concentrations show that PM10 is within acceptable international standards except during dust storms within the sampled periods. Desert dust, crustal minerals, and sea salts are the major natural sources of PM10 pollution. Examples of these minerals are quartz [SiO2], calcite [CaCO3], gypsum [CaSO4 center dot 2H(2)O], palygorskite [(Mg,Al)(2)Si4O10(OH)center dot(4)(H2O], chlorite-serpentine [(Mg,Fe)(6)AlSi3O10(OH)(8)], halite [NaCl] and nitratine [NaNO3]. Anthropogenic mineral-based pollutants, such as mascagnite [(NH4)(2)SO4] and koktaite [(NH4)(2)Ca(SO4)(2)center dot H2O], were also observed to contribute to PM10. Trace elements such as Zn, Cu, Fe, Cr and Mn that are markers for traffic sources, Ni and V that are markers for heavy oil combustion, and Pb, which is attributed to industrial emissions, were also identified in PM10. Seasonal variation of the average total mass concentrations and the average mass concentration of elements emitted from natural sources show that the hot season is associated with higher pollution levels compared to the cold season due to increased dust events in the spring and summer. Correlation coefficients between elements have identified elements originating from common sources such as dust storms (e.g., Si, Ca, Al, Fe, Ti, Mn) and sea breeze (Cl and Na), in addition to anthropogenic elements. Enrichment factors calculations have identified elements that mainly have crustal origins, and elements that are partially or highly enriched by humans. Anthropogenic elements were more enriched during the cold season due to reduced human activities in the summer.
英文关键词	PM10 chemical composition anthropogenic sources traffic site aerosol pollution seasonal variation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000652500600001
WOS关键词	CHARACTERIZING MINERAL DUSTS ; LONG-TERM EXPOSURE ; PARTICULATE MATTER ; SOURCE APPORTIONMENT ; AIR-POLLUTION ; CHEMICAL-CHARACTERIZATION ; PM2.5 ; RISKS ; URBAN ; FINE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350299
作者单位	[Hamdan, Nasser M.] Amer Univ Sharjah, Dept Phys, Sharjah, U Arab Emirates; [Hamdan, Nasser M.; Alawadhi, Hussain; Shameer, Mohamed] Univ Sharjah, Ctr Adv Mat Res, Sharjah, U Arab Emirates
推荐引用方式 GB/T 7714	Hamdan, Nasser M.,Alawadhi, Hussain,Shameer, Mohamed. Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment[J],2021,9.
APA	Hamdan, Nasser M.,Alawadhi, Hussain,&Shameer, Mohamed.(2021).Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment.FRONTIERS IN ENVIRONMENTAL SCIENCE,9.
MLA	Hamdan, Nasser M.,et al."Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment".FRONTIERS IN ENVIRONMENTAL SCIENCE 9(2021).