干旱区生态环境知识资源中心(Arid): Potential influence of fine aerosol chemistry on the optical properties in a semi-arid region

Arid

DOI	10.1016/j.envres.2022.114678
	Potential influence of fine aerosol chemistry on the optical properties in a semi-arid region
	Tian, Pengfei; Zhang, Naiyue; Li, Jiayun; Fan, Xiaolu; Guan, Xu; Lu, Yuting; Shi, Jinsen; Chang, Yi; Zhang, Lei
通讯作者	Li, JY
来源期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
EISSN	1096-0953
出版年	2023
卷号	216
英文摘要	The current understanding regarding the potential influence of aerosol chemistry on the optical properties does not satisfy accurate evaluation of aerosol radiative effects and precise determination of aerosol sources. We conducted a comprehensive study of the potential influence of aerosol chemistry on the optical properties in a semi-arid region based on various observations. Organic matter was the main contributor to the scattering co-efficients followed by secondary inorganic aerosols in all seasons. We further related aerosol absorption to elemental carbon, organic matter, and mineral dust. Results showed that organic matter and mineral dust contributed to >40% of the aerosol absorption in the ultraviolet wavelengths. Therefore, it is necessary to consider the absorption of organic matter and mineral dust in addition to that of elemental carbon. We further investigated the potential influence of chemical composition, especially of organic matter and mineral dust on the optical parameters. Mineral dust contributed to higher absorption efficiency and lower scattering efficiency in winter. The absorption angstrom ngstro center dot m exponent (AAE) was mostly sensitive to organic matter and mineral dust in winter and spring, respectively; it was relatively high (i.e., 1.68) in winter and moderate (i.e., 1.42) in spring. Unlike in the other seasons, mineral dust contributed to higher mass absorption efficiency in winter. This work reveals the complexity of the relationship between aerosol chemistry and optical properties, and especially the influence of organic matter and mineral dust on aerosol absorption. The results are highly important regarding both regional air pollution and climate.
英文关键词	Optical properties Aerosol chemistry PM2 5 Mineral dust Organic matter
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000904581500003
WOS关键词	YANGTZE-RIVER DELTA ; CHEMICAL-COMPOSITION ; LIGHT EXTINCTION ; BROWN CARBON ; BLACK CARBON ; ATMOSPHERIC AEROSOL ; PARTICULATE MATTER ; URBAN AREA ; PM2.5 ; ABSORPTION
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396204
推荐引用方式 GB/T 7714	Tian, Pengfei,Zhang, Naiyue,Li, Jiayun,et al. Potential influence of fine aerosol chemistry on the optical properties in a semi-arid region[J],2023,216.
APA	Tian, Pengfei.,Zhang, Naiyue.,Li, Jiayun.,Fan, Xiaolu.,Guan, Xu.,...&Zhang, Lei.(2023).Potential influence of fine aerosol chemistry on the optical properties in a semi-arid region.ENVIRONMENTAL RESEARCH,216.
MLA	Tian, Pengfei,et al."Potential influence of fine aerosol chemistry on the optical properties in a semi-arid region".ENVIRONMENTAL RESEARCH 216(2023).