Semivolatile behaviour and filter sampling artifacts for dicarboxylic acids during summer campaigns at three forested sites in Europe
The sampling artifacts for C(2)-C(5) dicarboxylic acids (DCAs) were studied by collecting high-volume PM(2.5) samples using front and back quartz-fibre filters. The filters were analysed for carbonaceous components, and for inorganic cationic and anionic and organic anionic species. Back/front filte...
Main Authors: | , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2011
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Subjects: | |
Online Access: | https://biblio.ugent.be/publication/2073695 http://hdl.handle.net/1854/LU-2073695 https://biblio.ugent.be/publication/2073695/file/2073702 |
Summary: | The sampling artifacts for C(2)-C(5) dicarboxylic acids (DCAs) were studied by collecting high-volume PM(2.5) samples using front and back quartz-fibre filters. The filters were analysed for carbonaceous components, and for inorganic cationic and anionic and organic anionic species. Back/front filter ratios were determined for the C(2)-C(5) DCAs, but also for methanesulphonate (MSA(-)), the various inorganic species, and the carbonaceous components. The sampling artifacts for the inorganic species were small (< 5%) with the exception of those for nitrate. The median back/front filter ratios for MSA(-) and the C(2)-C(5)DCAs increased in the following order: oxalate (1.5%)-succinate (3%)-MSA(-) (4%)-malonate (2%-9%)-glutarate (7%-26%). Most of these ratios are smaller than those that were obtained for organic carbon, total carbon, and especially water-soluble organic carbon. Our back/front ratios for the C(2)-C(5) DCAs are lower to much lower than those found in other studies. |
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