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在地中海西南部 (阿尔及利亚) 的PM₁₀离子物种来源

Abdelkader Lemou^1,2,3, Lyes Rabhi^4,5,6, Riad Ladji^4,5

¹Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), Zone Industrielle, BP 384 Bou-Ismail, Tipaza, Algeria. madjid.des@hotmail.com.

Environmental science and pollution research international

|July 30, 2024

概括

这项研究测量了阿尔及利亚海岸PM10颗粒中的主要离子,揭示了季节性生物质燃烧的影响. 化物和等关键离子占主导地位,与地中海火灾有关.

科学领域:

大气化学和气溶科学
环境监测和环境分析

背景情况:

颗粒物 (PM10) 组成对于了解空气质量和大气过程至关重要.
地中海沿海地区经历了由各种排放源影响的复杂气溶动态.

研究的目的:

调查PM10中主要水溶性离子的季节性和年度变化.
确定PM10成分的来源和运输,特别是生物质燃烧 (BB) 气溶.
在一个偏远的地中海沿海地区 (阿尔及利亚的Bou-Ismail) 分析PM10的化学成分.

主要方法:

在两年时间内 (2011年7月至2013年8月) 采集的PM10样本的详细化学分析.
测量关键的水溶性离子:MSA,Cl-,NO3-,SO42-,Na+,NH4+,K+,Mg2+和Ca2+.这些离子在水溶性离子中是最重要的.
与地中海地区生物质燃烧事件绘制 (热点和火灾) 的相关性分析.

主要成果:

在PM10中,水溶性离子总度有很大的差异,从3.3μg/m3到49.6μg/m3.
年平均质量度按照以下顺序进行:Cl- > Na+ > SO42- > Mg2+ > NO3- > Ca2+ > K+ > NH4+ > 氧酸盐.
非海盐 (nss-K+) 表示生物质在冬季,夏季和秋季燃烧的影响,与撒丁岛和科西卡的火灾有关.

结论:

生物质燃烧是地中海PM10成分的重要贡献者,跨境运输影响了阿尔及利亚沿海空气质量.
了解PM10离子的季节性变化对于地中海沿海地区有效的空气污染管理至关重要.

关键词:

气溶是一种气溶.离子离子是一种离子.在PM10中,PM10是什么?海盐:海盐是一种海盐.地中海西南部 (阿尔及利亚)

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