Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest
Both primary biological aerosol particles (PBAPs) and oxidation products of biogenic volatile organic compounds (BVOCs) contribute significantly to organic aerosols (OAs) in forested regions. However, little is known about their relative importance in diurnal timescales. Here, we report biomarker...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2016-06-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://www.atmos-chem-phys.net/16/7497/2016/acp-16-7497-2016.pdf |
| _version_ | 1818110347267014656 |
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| author | C. Zhu C. Zhu C. Zhu K. Kawamura K. Kawamura Y. Fukuda Y. Fukuda M. Mochida M. Mochida Y. Iwamoto Y. Iwamoto |
| author_facet | C. Zhu C. Zhu C. Zhu K. Kawamura K. Kawamura Y. Fukuda Y. Fukuda M. Mochida M. Mochida Y. Iwamoto Y. Iwamoto |
| author_sort | C. Zhu |
| collection | DOAJ |
| description | Both primary biological aerosol particles (PBAPs) and oxidation products of
biogenic volatile organic compounds (BVOCs) contribute significantly to
organic aerosols (OAs) in forested regions. However, little is known about their
relative importance in diurnal timescales. Here, we report biomarkers of
PBAP and secondary organic aerosols (SOAs) for their diurnal variability in a
temperate coniferous forest in Wakayama, Japan. Tracers of fungal spores,
trehalose, arabitol and mannitol, showed significantly higher levels in
nighttime than daytime (<i>p</i> < 0.05), resulting from the nocturnal
sporulation under near-saturated relative humidity. On the contrary, BVOC
oxidation products showed higher levels in daytime than nighttime,
indicating substantial photochemical SOA formation. Using tracer-based
methods, we estimated that fungal spores account for 45 % of organic
carbon (OC) in nighttime and 22 % in daytime, whereas BVOC oxidation
products account for 15 and 19 %, respectively. To our knowledge, we
present for the first time highly time-resolved results that fungal spores
overwhelmed BVOC oxidation products in contributing to OA especially in
nighttime. This study emphasizes the importance of both PBAPs and SOAs in
forming forest organic aerosols. |
| first_indexed | 2024-12-11T02:45:42Z |
| format | Article |
| id | doaj.art-019ded19fcbd45f48ead731afcae315e |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-11T02:45:42Z |
| publishDate | 2016-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-019ded19fcbd45f48ead731afcae315e2022-12-22T01:23:25ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242016-06-01167497750610.5194/acp-16-7497-2016Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forestC. Zhu0C. Zhu1C. Zhu2K. Kawamura3K. Kawamura4Y. Fukuda5Y. Fukuda6M. Mochida7M. Mochida8Y. Iwamoto9Y. Iwamoto10Institute of Low Temperature Science, Hokkaido University, Sapporo 0600819, JapanCMA Key Laboratory of Aerosol-Cloud-Precipitation, Nanjing University of Information Science and Technology, Nanjing 210044, Chinanow at: Department of Environmental Geochemical Cycle Research, Japan Agency for Marine–Earth Science and Technology, Yokohama 2360001, JapanInstitute of Low Temperature Science, Hokkaido University, Sapporo 0600819, Japannow at: Chubu Institute for Advanced Studies, Chubu University, Kasugai 4878501, JapanInstitute of Low Temperature Science, Hokkaido University, Sapporo 0600819, JapanGraduate School of Environmental Science, Hokkaido University, Sapporo 0600810, JapanInstitute of Advanced Research, Nagoya University, Nagoya 4648601, Japannow at: Graduate School of Environmental Studies, Nagoya University, Nagoya 4648601, Japan Institute of Advanced Research, Nagoya University, Nagoya 4648601, Japannow at: Faculty of Science Division I, Tokyo University of Science, Tokyo 1628601, JapanBoth primary biological aerosol particles (PBAPs) and oxidation products of biogenic volatile organic compounds (BVOCs) contribute significantly to organic aerosols (OAs) in forested regions. However, little is known about their relative importance in diurnal timescales. Here, we report biomarkers of PBAP and secondary organic aerosols (SOAs) for their diurnal variability in a temperate coniferous forest in Wakayama, Japan. Tracers of fungal spores, trehalose, arabitol and mannitol, showed significantly higher levels in nighttime than daytime (<i>p</i> < 0.05), resulting from the nocturnal sporulation under near-saturated relative humidity. On the contrary, BVOC oxidation products showed higher levels in daytime than nighttime, indicating substantial photochemical SOA formation. Using tracer-based methods, we estimated that fungal spores account for 45 % of organic carbon (OC) in nighttime and 22 % in daytime, whereas BVOC oxidation products account for 15 and 19 %, respectively. To our knowledge, we present for the first time highly time-resolved results that fungal spores overwhelmed BVOC oxidation products in contributing to OA especially in nighttime. This study emphasizes the importance of both PBAPs and SOAs in forming forest organic aerosols.https://www.atmos-chem-phys.net/16/7497/2016/acp-16-7497-2016.pdf |
| spellingShingle | C. Zhu C. Zhu C. Zhu K. Kawamura K. Kawamura Y. Fukuda Y. Fukuda M. Mochida M. Mochida Y. Iwamoto Y. Iwamoto Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest Atmospheric Chemistry and Physics |
| title | Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest |
| title_full | Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest |
| title_fullStr | Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest |
| title_full_unstemmed | Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest |
| title_short | Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest |
| title_sort | fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest |
| url | https://www.atmos-chem-phys.net/16/7497/2016/acp-16-7497-2016.pdf |
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