id:"swepub:oai:DiVA.org:su-10756"
Search: id:"swepub:oai:DiVA.org:su-10756" > Estimation and vali...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Ketzel, M. (author)
Estimation and validation of PM2.5/PM10 exhaust and non-exhaust emission factors for practical street pollution modelling
- Article/chapterEnglish2007
Publisher, publication year, extent ...
- Elsevier BV,2007
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-10756
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-10756URI
- https://doi.org/10.1016/j.atmosenv.2007.09.005DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- In order to carry out efficient traffic and air quality management, validated models and PM emission estimates are needed. This paper compares current available emission factor estimates for PM10 and PM2.5 from emission databases and different emission models, and validates these against eight high quality street pollution measurements in Denmark, Sweden, Germany, Finland and Austria.The data sets show large variation of the PM concentration and emission factors with season and with location. Consistently at all roads the PM10 and PM2.5 emission factors are lower in the summer month than the rest of the year. For example, PM10 emission factors are in average 5–45% lower during the month 6–10 compared to the annual average.The range of observed total emission factors (including non-exhaust emissions) for the different sites during summer conditions are 80–130 mg km−1 for PM10, 30–60 mg km−1 for PM2.5 and 20–50 mg km−1 for the exhaust emissions.We present two different strategies regarding modelling of PM emissions: (1) For Nordic conditions with strong seasonal variations due to studded tyres and the use of sand/salt as anti-skid treatment a time varying emission model is needed. An empirical model accounting for these Nordic conditions was previously developed in Sweden. (2) For other roads with a less pronounced seasonal variation (e.g. in Denmark, Germany, Austria) methods using a constant emission factor maybe appropriate. Two models are presented here.Further, we apply the different emission models to data sets outside the original countries. For example, we apply the “Swedish” model for two streets without studded tyre usage and the “German” model for Nordic data sets. The “Swedish” empirical model performs best for streets with studded tyre use, but was not able to improve the correlation versus measurements in comparison to using constant emission factors for the Danish side. The “German” method performed well for the streets without clear seasonal variation and reproduces the summer conditions for streets with pronounced seasonal variation. However, the seasonal variation of PM emission factors can be important even for countries not using studded tyres, e.g. in areas with cold weather and snow events using sand and de-icing materials. Here a constant emission factor probably will under-estimate the 90-percentiles and therefore a time varying emission model need to be used or developed for such areas.All emission factor models consistently indicate that a large part (about 50–85% depending on the location) of the total PM10 emissions originates from non-exhaust emissions. This implies that reduction measures for the exhaust part of the vehicle emissions will only have a limited effect on ambient PM10 levels.
Subject headings and genre
- NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
- Environmental science
Added entries (persons, corporate bodies, meetings, titles ...)
- Omstedt, G. (author)
- Johansson, ChristerStockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)(Swepub:su)chjoh (author)
- Düring, I. (author)
- Pohojola, M. (author)
- Oettl, D. (author)
- Gidhagen, L. (author)
- Wåhlin, P. (author)
- Lohmeyer, A. (author)
- Haakana, M. (author)
- Berkowicz, R. (author)
- Stockholms universitetInstitutionen för tillämpad miljövetenskap (ITM) (creator_code:org_t)
Related titles
- In:Atmos. Environ.: Elsevier BV41, s. 9370-9385
- In:Atmospheric Environment: Elsevier BV41, s. 9370-93851352-2310
Internet link
Find in a library
- Atmos. Environ. (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Ketzel, M.
- Omstedt, G.
- Johansson, Chris ...
- Düring, I.
- Pohojola, M.
- Oettl, D.
- show more...
- Gidhagen, L.
- Wåhlin, P.
- Lohmeyer, A.
- Haakana, M.
- Berkowicz, R.
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
- Articles in the publication
- Atmos. Environ.
- Atmospheric Envi ...
- By the university
- Stockholm University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
