Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area
Concentration and composition of the fine particulate matter (PM) was measured using various online methods for 13 months in an urban, background area in Helsinki, Finland. Seasonal differences were found for ions and carbonaceous compounds. Biomass burning was found to increase inorganic ion and el...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/160095 2024-01-07T09:42:29+01:00 Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area Timonen, Hilkka Aurela, Minna Carbone, Samara Saarnio, Karri Frey, Anna Saarikoski, Sanna Teinilä, Kimmo Kulmala, Markku Hillamo, Risto Department of Physics 2016-02-08T11:40:02Z 16 application/pdf http://hdl.handle.net/10138/160095 eng eng Finnish Environment Institute Financial support from the Graduate School in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change (University of Helsinki) and European Union (EUCAARI, contract no. 036833-2) is gratefully acknowledged. The research was also supported by the Academy of Finland Center of Excellence program (project number 1118615). Timonen , H , Aurela , M , Carbone , S , Saarnio , K , Frey , A , Saarikoski , S , Teinilä , K , Kulmala , M & Hillamo , R 2014 , ' Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area ' , Boreal Environment Research , vol. 19 , no. Suppl. B , pp. 71-86 . 84906973326 96e08882-55b0-4363-868d-db6d2210af20 http://hdl.handle.net/10138/160095 000342654100006 other openAccess info:eu-repo/semantics/openAccess FINE PARTICULATE MATTER INTO-LIQUID SAMPLER CHEMICAL-COMPOSITION ELEMENTAL CARBON AIR-POLLUTION BLACK CARBON LONG-RANGE AIRBORNE MEASUREMENTS SIZE DISTRIBUTIONS ORGANIC-CARBON 1172 Environmental sciences Article publishedVersion 2016 ftunivhelsihelda 2023-12-14T00:08:21Z Concentration and composition of the fine particulate matter (PM) was measured using various online methods for 13 months in an urban, background area in Helsinki, Finland. Seasonal differences were found for ions and carbonaceous compounds. Biomass burning was found to increase inorganic ion and elemental carbon (EC) concentrations in winter, whereas organic carbon (OC) contribution was highest during summer due to secondary aerosol formation. Diurnal cycles, with maxima between 06:00 and 09:00, were recorded for EC and nitrate due to traffic emissions. In addition, the concentrations measured with the online and offline PM sampling devices were compared using regression analysis. In general, a good agreement (r(2) = 0.60-0.95) was found. During the year-long measurements, on average 65% of PM2.5 was identified by submicron chemical analyses (ions, OC, EC). As compared with filter measurements, the high resolution measurements provided important data on short pollution plumes and diurnal changes. Peer reviewed Article in Journal/Newspaper Boreal Environment Research HELDA – University of Helsinki Open Repository |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
FINE PARTICULATE MATTER INTO-LIQUID SAMPLER CHEMICAL-COMPOSITION ELEMENTAL CARBON AIR-POLLUTION BLACK CARBON LONG-RANGE AIRBORNE MEASUREMENTS SIZE DISTRIBUTIONS ORGANIC-CARBON 1172 Environmental sciences |
spellingShingle |
FINE PARTICULATE MATTER INTO-LIQUID SAMPLER CHEMICAL-COMPOSITION ELEMENTAL CARBON AIR-POLLUTION BLACK CARBON LONG-RANGE AIRBORNE MEASUREMENTS SIZE DISTRIBUTIONS ORGANIC-CARBON 1172 Environmental sciences Timonen, Hilkka Aurela, Minna Carbone, Samara Saarnio, Karri Frey, Anna Saarikoski, Sanna Teinilä, Kimmo Kulmala, Markku Hillamo, Risto Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area |
topic_facet |
FINE PARTICULATE MATTER INTO-LIQUID SAMPLER CHEMICAL-COMPOSITION ELEMENTAL CARBON AIR-POLLUTION BLACK CARBON LONG-RANGE AIRBORNE MEASUREMENTS SIZE DISTRIBUTIONS ORGANIC-CARBON 1172 Environmental sciences |
description |
Concentration and composition of the fine particulate matter (PM) was measured using various online methods for 13 months in an urban, background area in Helsinki, Finland. Seasonal differences were found for ions and carbonaceous compounds. Biomass burning was found to increase inorganic ion and elemental carbon (EC) concentrations in winter, whereas organic carbon (OC) contribution was highest during summer due to secondary aerosol formation. Diurnal cycles, with maxima between 06:00 and 09:00, were recorded for EC and nitrate due to traffic emissions. In addition, the concentrations measured with the online and offline PM sampling devices were compared using regression analysis. In general, a good agreement (r(2) = 0.60-0.95) was found. During the year-long measurements, on average 65% of PM2.5 was identified by submicron chemical analyses (ions, OC, EC). As compared with filter measurements, the high resolution measurements provided important data on short pollution plumes and diurnal changes. Peer reviewed |
author2 |
Department of Physics |
format |
Article in Journal/Newspaper |
author |
Timonen, Hilkka Aurela, Minna Carbone, Samara Saarnio, Karri Frey, Anna Saarikoski, Sanna Teinilä, Kimmo Kulmala, Markku Hillamo, Risto |
author_facet |
Timonen, Hilkka Aurela, Minna Carbone, Samara Saarnio, Karri Frey, Anna Saarikoski, Sanna Teinilä, Kimmo Kulmala, Markku Hillamo, Risto |
author_sort |
Timonen, Hilkka |
title |
Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area |
title_short |
Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area |
title_full |
Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area |
title_fullStr |
Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area |
title_full_unstemmed |
Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area |
title_sort |
seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area |
publisher |
Finnish Environment Institute |
publishDate |
2016 |
url |
http://hdl.handle.net/10138/160095 |
genre |
Boreal Environment Research |
genre_facet |
Boreal Environment Research |
op_relation |
Financial support from the Graduate School in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change (University of Helsinki) and European Union (EUCAARI, contract no. 036833-2) is gratefully acknowledged. The research was also supported by the Academy of Finland Center of Excellence program (project number 1118615). Timonen , H , Aurela , M , Carbone , S , Saarnio , K , Frey , A , Saarikoski , S , Teinilä , K , Kulmala , M & Hillamo , R 2014 , ' Seasonal and diurnal changes in inorganic ions, carbonaceous matter and mass in ambient aerosol particles in an urban, background area ' , Boreal Environment Research , vol. 19 , no. Suppl. B , pp. 71-86 . 84906973326 96e08882-55b0-4363-868d-db6d2210af20 http://hdl.handle.net/10138/160095 000342654100006 |
op_rights |
other openAccess info:eu-repo/semantics/openAccess |
_version_ |
1787423461048582144 |