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DOI	10.1016/j.atmosenv.2024.120365
	Characteristics and origins of fine particulate amines at a coastal mountain site in northern China in spring
	Liu, Mingxuan; Wang, Xinfeng; Liu, Zhiyi; Jiang, Yueru; Li, Min; Zhang, Ji; Sun, Yue; Zhu, Yujiao; Xue, Likun; Wang, Wenxing
发表日期	2024
ISSN	1352-2310
EISSN	1873-2844
起始页码	321
卷号	321
英文摘要	Low-molecular-weight amines are the most abundant amine compounds in the atmosphere and they affect new particle formation, aerosol properties, climate change and human health. To understand the chemical composition, diurnal variation, influences of terrestrial and marine emissions, and potential sources of fine particulate amines in the coastal area in northern China, field sampling and measurements was conducted at coastal Mt. Lao in the spring of 2021. The total concentration of amines in PM2.5 was around 60 ng m- 3 on average. Dimethylamine was the most abundant compound with mean fraction of 27.2% in the quantified 16 amines, followed by diethylamine (19.6%) and ethanolamine (12.6%). Elevated concentrations of amines usually appeared with high levels of CO, SO2, NOx, and/or moderately high humidity. Amines exhibited higher concentrations during the daytime than nighttime at the mountain site, due to more intense anthropogenic activities at daytime. The concentration peak in the late afternoon is ascribed to relatively strong anthropogenic emissions and enhanced gas-to-particle partitioning. Furthermore, comparison between terrestrial- and marine-airmass dominated samples shows that most amines primarily came from terrestrial activities, while TMA was mainly from marine sources. Source apportionment with the positive matrix factorization model identified seven major sources including agricultural emissions, industrial production, biomass burning, coal combustion, marine emissions, traffic emissions and crustal dusts. Notably, high contributions from agricultural source and biomass burning were observed at this coastal mountain site, indicating differential compositions and origins of particulate amines in different seasons and locations.
英文关键词	Amines; Variation characteristics; Land-sea interaction; Source apportionment; Coastal area
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001170670900001
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300611
作者单位	Shandong University
推荐引用方式 GB/T 7714	Liu, Mingxuan,Wang, Xinfeng,Liu, Zhiyi,et al. Characteristics and origins of fine particulate amines at a coastal mountain site in northern China in spring[J],2024,321.
APA	Liu, Mingxuan.,Wang, Xinfeng.,Liu, Zhiyi.,Jiang, Yueru.,Li, Min.,...&Wang, Wenxing.(2024).Characteristics and origins of fine particulate amines at a coastal mountain site in northern China in spring.ATMOSPHERIC ENVIRONMENT,321.
MLA	Liu, Mingxuan,et al."Characteristics and origins of fine particulate amines at a coastal mountain site in northern China in spring".ATMOSPHERIC ENVIRONMENT 321(2024).