亚洲大陆流出羽中气溶胶磷的来源解析

利用西风盛行时在青岛采集的总悬浮颗粒物（TSP）样品，分析其中总P （TP）和溶解态P （DP）浓度与气团后向轨迹的关系，采用正定矩阵因子分析（PMF）和潜在源贡献因子分析（PSCF）方法解析TP和DP的来源及其潜在贡献区域.结果表明：青岛气溶胶中TP主要来自地壳源的贡献（45%）；其次是机动车排放源（22%）、燃烧源（21%）和工业源（12%）；海盐源的贡献最小（<1%）.但DP主要来自人为源的贡献，其中机动车排放源的贡献为35%，燃烧源和/或二次源为28%、工业源为25%；地壳源和海盐源等自然源的贡献分别为9%和1%.相同来源的TP和DP其潜在贡献区域相似，但DP的贡献区域范围更广.地壳源P （TP和DP）的贡献区域集中在沙尘从源地向我国近海传输的路径上，海盐源P的贡献区域位于黄、渤海，工业源P的贡献区域主要为河南、山东以及蒙古国南部等地区，燃烧源/二次源P的主要贡献区域为山东南部和江苏北部区域，机动车排放源P的贡献区域则主要为北京、天津、山东、江苏等区域.

Source appointment of aerosol phosphorus in Asian continental outflow

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.