Laboratory of Meteorology, Department of Physics, University of Ioannina, 45110 Ioannina, Greece.
Laboratory of Meteorology, Department of Physics, University of Ioannina, 45110 Ioannina, Greece.
Environ Pollut. 2014 Jul;190:91-100. doi: 10.1016/j.envpol.2014.03.019. Epub 2014 Apr 15.
This paper aims to decompose the profile of particulates in Karlsruhe and Potsdam (Germany), focusing on the localization of PM potential transboundary sources. An air mass cluster analysis was implemented, followed by a study of air mass residence time on a grid of a 0.5° × 0.5° resolution. Particulate/gaseous daily air pollution and meteorological data were used to indicate PM local sources. Four Principal Component Analysis (PCA) components were produced: traffic, photochemical, industrial/domestic and particulate. PM2.5/PM10 ratio seasonal trends, indicated production of PMCOARSE (PM10-PM2.5) from secondary sources in Potsdam during warm period (WP). The residing areas of incoming slow moving air masses are potential transboundary PM sources. For Karlsruhe those areas were mainly around the city. An air mass residence time secondary peak was observed over Stuttgart. For Potsdam, areas with increased dwelling time of the arriving air parcels were detected particularly above E/SE Germany.
本文旨在剖析德国卡尔斯鲁厄和波茨坦地区的颗粒物分布特征，重点关注潜在跨境传输源的定位。采用大气团聚类分析方法，结合 0.5°×0.5°分辨率格网的大气停留时间研究，利用颗粒物/气态日污染和气象数据指示 PM 本地源。生成了四个主成分分析（PCA）分量：交通、光化学、工业/家庭和颗粒物。PM2.5/PM10 比值的季节性趋势表明，在温暖期（WP）波茨坦的二次源产生了 PMCOARSE（PM10-PM2.5）。进入的缓慢移动大气团的停留区是潜在的跨境 PM 源。对于卡尔斯鲁厄，这些区域主要集中在城市周围。在斯图加特上空观测到大气停留时间的二次高峰。对于波茨坦，特别是在德国东部和东南部上空，检测到到达气团停留时间增加的区域。
