Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site
Abstract Positive Matrix Factorization was used for source apportionment of 2-hour online metals (Xact625i; PM2.5) and elemental and organic carbon (EC/OC analyser; PM1) data at an urban traffic site in Prague, Czech Republic, for two month-long periods in spring (February–March) and winter (Novembe...
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| Format: | Article |
| Language: | English |
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Springer
2024-05-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.240058 |
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| author | Laurence C. Windell Petra Pokorná Jaroslav Schwarz Petr Vodička Philip K. Hopke Naděžda Zíková Radek Lhotka Jakub Ondráček Petr Roztočil Michal Vojtišek Vladimír Ždímal |
| author_facet | Laurence C. Windell Petra Pokorná Jaroslav Schwarz Petr Vodička Philip K. Hopke Naděžda Zíková Radek Lhotka Jakub Ondráček Petr Roztočil Michal Vojtišek Vladimír Ždímal |
| author_sort | Laurence C. Windell |
| collection | DOAJ |
| description | Abstract Positive Matrix Factorization was used for source apportionment of 2-hour online metals (Xact625i; PM2.5) and elemental and organic carbon (EC/OC analyser; PM1) data at an urban traffic site in Prague, Czech Republic, for two month-long periods in spring (February–March) and winter (November–December), 2020 (400 samples). Five factors were obtained for spring: Local heating (39%), Soil/road dust (21%), Secondary inorganic aerosol (20%), Traffic (12%), and Road salt (9%), while four factors were resolved for winter: Local heating (20%), Soil/road dust (31%), Secondary inorganic aerosol (SIA; 36%), and Traffic (13%). Aside from SIA, the sources were of local origins. Air mass back trajectories calculated by HYSPLIT and concentration weighted trajectories (CWT) were used to identify long-distance sources. Greater PM concentrations during winter (~3 times greater) were attributed to both lower boundary layer heights and more abundant air masses from Central Europe, compared to more marine air masses during spring. |
| format | Article |
| id | doaj-art-d4e0765e9cdc4e1daa2151ce76e848a9 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-d4e0765e9cdc4e1daa2151ce76e848a92025-02-09T12:24:25ZengSpringerAerosol and Air Quality Research1680-85842071-14092024-05-0124811710.4209/aaqr.240058Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic SiteLaurence C. Windell0Petra Pokorná1Jaroslav Schwarz2Petr Vodička3Philip K. Hopke4Naděžda Zíková5Radek Lhotka6Jakub Ondráček7Petr Roztočil8Michal Vojtišek9Vladimír Ždímal10Aerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesDepartment of Public Health Sciences, University of Rochester School of Medicine and DentistryAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of SciencesAbstract Positive Matrix Factorization was used for source apportionment of 2-hour online metals (Xact625i; PM2.5) and elemental and organic carbon (EC/OC analyser; PM1) data at an urban traffic site in Prague, Czech Republic, for two month-long periods in spring (February–March) and winter (November–December), 2020 (400 samples). Five factors were obtained for spring: Local heating (39%), Soil/road dust (21%), Secondary inorganic aerosol (20%), Traffic (12%), and Road salt (9%), while four factors were resolved for winter: Local heating (20%), Soil/road dust (31%), Secondary inorganic aerosol (SIA; 36%), and Traffic (13%). Aside from SIA, the sources were of local origins. Air mass back trajectories calculated by HYSPLIT and concentration weighted trajectories (CWT) were used to identify long-distance sources. Greater PM concentrations during winter (~3 times greater) were attributed to both lower boundary layer heights and more abundant air masses from Central Europe, compared to more marine air masses during spring.https://doi.org/10.4209/aaqr.240058PMFOnlineXactEC/OC |
| spellingShingle | Laurence C. Windell Petra Pokorná Jaroslav Schwarz Petr Vodička Philip K. Hopke Naděžda Zíková Radek Lhotka Jakub Ondráček Petr Roztočil Michal Vojtišek Vladimír Ždímal Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site Aerosol and Air Quality Research PMF Online Xact EC/OC |
| title | Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site |
| title_full | Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site |
| title_fullStr | Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site |
| title_full_unstemmed | Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site |
| title_short | Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site |
| title_sort | highly time resolved elemental source apportionment at a prague urban traffic site |
| topic | PMF Online Xact EC/OC |
| url | https://doi.org/10.4209/aaqr.240058 |
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