Spatial Modeling of PAHs in Lichens for Fingerprinting of Multisource Atmospheric Pollution

SOFIA AUGUSTO; CRISTINA MAGUAS; JOAO MATOS; MARIA JOAO PEREIRA; AMILCAR SOARES; CRISTINA BRANQUINHO

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Spatial Modeling of PAHs in Lichens for Fingerprinting of Multisource Atmospheric Pollution

机译：多源大气污染指纹图谱中地衣中多环芳烃的空间建模

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PAHs are toxic compounds emitted by several anthropogenic sources, which have a great impact on human health. We show, for the first time, how spatial models based on PAHs intercepted by lichens can be used for fingerprinting multisource atmospheric pollution in a regional area. Urban-industrial areas showed the highest atmospheric deposition of PAHs followed by urban > industrial > agricultural > forest. Multivariate analysis of lichen data showed, for the first time, a clear distinction between various sources of PAHs in the same area: urban are dominated by 4-ring PAHs, forest by 3-ring PAHs, and industrial by 5- and 6-ring PAHs or by 2-ring PAHs (petrogenic or pyrogenic, respectively). Heavy metals were also used for supporting the fingerprinting of PAH sources, reinforcing the industrial origin of 5- and 6-ring PAHs and revealing their particular nature. The spatial structure of the models for different PAHs seems to be dependent on the following factors: size and hydrophilic character of different PAHs, type of emission sources (point or nonpoint), and dispersion associated with particulates of different sizes. Based on the long-term integration of PAHs in lichens, these spatial models will significantly improve our knowledge on the impact of PAH chronic-exposure to humans and ecosystems.

机译：多环芳烃是几种人为来源释放的有毒化合物，对人体健康有很大影响。我们首次展示了基于地衣截获的PAHs的空间模型如何用于区域区域多源大气污染的指纹识别。城市工业区的PAHs在大气中的沉积最高，其次是城市>工业>农业>森林。地衣数据的多变量分析首次显示，同一地区的多种PAHs来源之间存在明显的区别：城市以4环PAH为主，森林以3环PAH为主，工业以5环和6环为主多环芳烃或2环多环芳烃（分别为成烃或生热）。重金属还用于支持PAH来源的指纹识别，增强了5环和6环PAH的工业来源，并揭示了它们的特殊性质。不同PAH的模型的空间结构似乎取决于以下因素：不同PAH的大小和亲水特性，排放源类型（点或非点）以及与不同大小颗粒相关的分散。基于PAHs在地衣中的长期整合，这些空间模型将大大提高我们对PAH长期暴露对人类和生态系统影响的认识。

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来源
《Environmental Science & Technology》 |2009年第20期|7762-7769|共8页
作者
SOFIA AUGUSTO; CRISTINA MAGUAS; JOAO MATOS; MARIA JOAO PEREIRA; AMILCAR SOARES; CRISTINA BRANQUINHO;
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作者单位

Faculty of Sciences, Centre for Environmental Biology (CBA), University of Lisbon, FCUL, Campo Grande, Bloco C2, Piso 5, 1749-016 Lisboa, Portugal;

Faculty of Sciences, Centre for Environmental Biology (CBA), University of Lisbon, FCUL, Campo Grande, Bloco C2, Piso 5, 1749-016 Lisboa, Portugal;

Portuguese Environmental Protection Agency (APA), Rua da Murgueira, 9/9°, 2611-865 Amadora.,Portugal;

Centre for Natural Resources and the Environment (CERENA), IST, UTL, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;

Centre for Natural Resources and the Environment (CERENA), IST, UTL, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;

Faculty of Sciences, Centre for Environmental Biology (CBA), University of Lisbon, FCUL, Campo Grande, Bloco C2, Piso 5, 1749-016 Lisboa, Portugal;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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Spatial Modeling of PAHs in Lichens for Fingerprinting of Multisource Atmospheric Pollution

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