亚洲大陆流出羽中气溶胶磷的来源解析

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Abstract Using 112 total suspended particulate (TSP) samples collected in Qingdao under the prevailing westerly wind, the variations in the total P (TP) and the dissolved P (DP) concentrations were related to the air mass backward trajectories during the sample collections. In addition, Positive Definite Matrix Factor Analysis (PMF) and Potential Source Contributing Factor Analysis (PSCF) were applied to apportion the TP and DP and to resolve their potential contributing regions. The TP mainly came from crustal sources (45%); followed by vehicle emissions (22%), combustion (21%) and industrial sources (12%); sea salt emissions had the minimum contribution (<1%). However, the DP mainly came from the anthropogenic sources, including 35% contribution from vehicle emissions, 28% contribution from combustion sources and/or secondary acidified particulate insoluble P during the long-range transport, and 25% contribution from industrial sources. The contributions from natural sources such as mineral dust and sea salt aerosols were approximately 9% and 1% respectively. In each type of TP and DP origin, the potential contribution regions of TP and DP were similar. However, the potential contribution regions of DP covered large areas. For the P (TP and DP) derived from the crustal, its potential contributors were distributed along the transport path of dust from the deserts to coastal area; for sea-salt P, the contributors were from the Yellow Sea and Bohai Sea. The potential industrial contributors of TP and DP were mainly from Henan, Shandong and southern Mongolia. The contributors from combustion or secondary emissions were mainly from southern Shandong and northern Jiangsu while their contributors from vehicle emissions were mainly distributed in Beijing, Tianjin, Shandong, and Jiangsu.

Key words： phosphorus (P) aerosols source apportionment positive definite matrix factor analysis (PMF) potential source contributing factor analysis (PSCF)

Received: 25 March 2022

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X513

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	GU Han
	SHI Jin-hui
	GAO Hui-wang
	YAO Xiao-hong

Cite this article:

GU Han,SHI Jin-hui,GAO Hui-wang等. Source appointment of aerosol phosphorus in Asian continental outflow[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(10): 4501-4508.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I10/4501

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