Scholarlink

<p>Characterization of PM<sub>2.5</sub> in coastal atmosphere has important implications for apportion their sources, and developing measures to control air pollution. Herein, the collected data have been examined to define PM<sub>2.5</sub> sources, and their contributions and to estimate the influence of ambient PM<sub>2.5</sub> transport. airborne metal concentrations in three urban-coastal locations in Jeddah, were analyzed. Forty-four PM<sub>2.5</sub> samples were collected for three months. ICP-MS was used for quantification of 15 metals. EF, Backward Trajectories and PCA were used to identify and apportion of PM<sub>2.5</sub> sources. PM<sub>2.5</sub> concentration was 22.2, 18.9, and 14.2 μgm<sup>-3</sup> for studied locations, respectively. These values agree with the daily standards with one to three days violation. Al and Fe are main components followed by Pb and Cu. The main source of Al and Fe is likely soil re-suspension. Fe and Cu are attributed to either fly ash from coal and/or heavy oil combustion. low Pb concentration in Alkhomra relative to its values in the other two locations indicate that its source is likely traffic. High EF values for Pb, Cu, Zn, V and Ni suggest traffic emissions, tire wear, incineration, fossil fuel combustion. Na source is earth crust. Backward Trajectory helps to explain the regional and the local contributions that affect air quality and duplicate the concentrations of PM<sub>2.5</sub>. PCA defined four possible principal sources. These interpretations are supported by the elemental correlation matrix. This study has presented a more in-depth insight into using the trace metals as tracers to verify the emissions sources.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Characterization of PM2.5 Trace Metals from the Urban-Coastal Area of Jeddah, Saudi Arabia

  • 期刊论文

  • 发表日期：

    2025年6月4日

查看全文
  • A. S. Abdelmaksoud,
  • R. F. Halawani,
  • F.M. Almehmadi,
  • A. N. Quicksall

摘要

Characterization of PM2.5 in coastal atmosphere has important implications for apportion their sources, and developing measures to control air pollution. Herein, the collected data have been examined to define PM2.5 sources, and their contributions and to estimate the influence of ambient PM2.5 transport. airborne metal concentrations in three urban-coastal locations in Jeddah, were analyzed. Forty-four PM2.5 samples were collected for three months. ICP-MS was used for quantification of 15 metals. EF, Backward Trajectories and PCA were used to identify and apportion of PM2.5 sources. PM2.5 concentration was 22.2, 18.9, and 14.2 μgm-3 for studied locations, respectively. These values agree with the daily standards with one to three days violation. Al and Fe are main components followed by Pb and Cu. The main source of Al and Fe is likely soil re-suspension. Fe and Cu are attributed to either fly ash from coal and/or heavy oil combustion. low Pb concentration in Alkhomra relative to its values in the other two locations indicate that its source is likely traffic. High EF values for Pb, Cu, Zn, V and Ni suggest traffic emissions, tire wear, incineration, fossil fuel combustion. Na source is earth crust. Backward Trajectory helps to explain the regional and the local contributions that affect air quality and duplicate the concentrations of PM2.5. PCA defined four possible principal sources. These interpretations are supported by the elemental correlation matrix. This study has presented a more in-depth insight into using the trace metals as tracers to verify the emissions sources.