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Time-resolved chara...
Time-resolved characterization of primary particle emissions and secondary particle formation from a modern gasoline passenger car
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- Karjalainen, Panu (författare)
- Tampere University of Technology
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- Timonen, Hilkka (författare)
- Finnish Meteorological Institute
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- Saukko, Erkka (författare)
- Tampere University of Technology
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- Kuuluvainen, Heino (författare)
- Tampere University of Technology
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- Saarikoski, Sanna (författare)
- Finnish Meteorological Institute
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- Aakko-Saksa, Pivi (författare)
- VTT Technical Research Center of Finland, Espoo
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- Murtonen, Timo (författare)
- VTT Technical Research Center of Finland, Espoo
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- Bloss, Matthew (författare)
- Finnish Meteorological Institute
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- Dal Maso, Miikka (författare)
- Tampere University of Technology
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- Simonen, Pauli (författare)
- Tampere University of Technology
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- Ahlberg, Erik (författare)
- Lund University,Lunds universitet,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Environmental and Climate Science (CEC),Faculty of Science,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Svenningsson, Birgitta (författare)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Brune, William Henry (författare)
- Pennsylvania State University
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- Hillamo, Risto (författare)
- Finnish Meteorological Institute
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- Keskinen, Jorma (författare)
- Tampere University of Technology
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- Rönkkö, Topi (författare)
- Tampere University of Technology
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(creator_code:org_t)
- 2016-07-14
- 2016
- Engelska 12 s.
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Ingår i: Atmospheric Chemistry and Physics. - : Copernicus GmbH. - 1680-7316 .- 1680-7324. ; 16:13, s. 8559-8570
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://www.atmos-ch...
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https://lup.lub.lu.s...
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https://doi.org/10.5...
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Abstract
Ämnesord
Stäng
- Changes in vehicle emission reduction technologies significantly affect traffic-related emissions in urban areas. In many densely populated areas the amount of traffic is increasing, keeping the emission level high or even increasing. To understand the health effects of traffic-related emissions, both primary (direct) particulate emission and secondary particle formation (from gaseous precursors in the exhaust emissions) need to be characterized. In this study, we used a comprehensive set of measurements to characterize both primary and secondary particulate emissions of a Euro 5 level gasoline passenger car. Our aerosol particle study covers the whole process chain in emission formation, from the tailpipe to the atmosphere, and also takes into account differences in driving patterns. We observed that, in mass terms, the amount of secondary particles was 13 times higher than the amount of primary particles. The formation, composition, number and mass of secondary particles was significantly affected by driving patterns and engine conditions. The highest gaseous and particulate emissions were observed at the beginning of the test cycle when the performance of the engine and the catalyst was below optimal. The key parameter for secondary particle formation was the amount of gaseous hydrocarbons in primary emissions; however, also the primary particle population had an influence.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
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Till lärosätets databas
- Av författaren/redakt...
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Karjalainen, Pan ...
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Timonen, Hilkka
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Saukko, Erkka
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Kuuluvainen, Hei ...
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Saarikoski, Sann ...
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Aakko-Saksa, Piv ...
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visa fler...
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Murtonen, Timo
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Bloss, Matthew
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Dal Maso, Miikka
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Simonen, Pauli
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Ahlberg, Erik
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Svenningsson, Bi ...
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Brune, William H ...
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Hillamo, Risto
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Keskinen, Jorma
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Rönkkö, Topi
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- NATURVETENSKAP
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och Klimatforskning
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NATURVETENSKAP
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Atmospheric Chem ...
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