Cargando…

Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars

Carbonaceous particulate matter (PM), comprising black carbon (BC), primary organic aerosol (POA) and secondary organic aerosol (SOA, from atmospheric aging of precursors), is a highly toxic vehicle exhaust component. Therefore, understanding vehicle pollution requires knowledge of both primary emis...

Descripción completa

Detalles Bibliográficos
Autores principales: Platt, S. M., El Haddad, I., Pieber, S. M., Zardini, A. A., Suarez-Bertoa, R., Clairotte, M., Daellenbach, K. R., Huang, R.-J., Slowik, J. G., Hellebust, S., Temime-Roussel, B., Marchand, N., de Gouw, J., Jimenez, J. L., Hayes, P. L., Robinson, A. L., Baltensperger, U., Astorga, C., Prévôt, A. S. H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509693/
https://www.ncbi.nlm.nih.gov/pubmed/28706240
http://dx.doi.org/10.1038/s41598-017-03714-9
_version_ 1783250053158141952
author Platt, S. M.
El Haddad, I.
Pieber, S. M.
Zardini, A. A.
Suarez-Bertoa, R.
Clairotte, M.
Daellenbach, K. R.
Huang, R.-J.
Slowik, J. G.
Hellebust, S.
Temime-Roussel, B.
Marchand, N.
de Gouw, J.
Jimenez, J. L.
Hayes, P. L.
Robinson, A. L.
Baltensperger, U.
Astorga, C.
Prévôt, A. S. H.
author_facet Platt, S. M.
El Haddad, I.
Pieber, S. M.
Zardini, A. A.
Suarez-Bertoa, R.
Clairotte, M.
Daellenbach, K. R.
Huang, R.-J.
Slowik, J. G.
Hellebust, S.
Temime-Roussel, B.
Marchand, N.
de Gouw, J.
Jimenez, J. L.
Hayes, P. L.
Robinson, A. L.
Baltensperger, U.
Astorga, C.
Prévôt, A. S. H.
author_sort Platt, S. M.
collection PubMed
description Carbonaceous particulate matter (PM), comprising black carbon (BC), primary organic aerosol (POA) and secondary organic aerosol (SOA, from atmospheric aging of precursors), is a highly toxic vehicle exhaust component. Therefore, understanding vehicle pollution requires knowledge of both primary emissions, and how these emissions age in the atmosphere. We provide a systematic examination of carbonaceous PM emissions and parameterisation of SOA formation from modern diesel and gasoline cars at different temperatures (22, −7 °C) during controlled laboratory experiments. Carbonaceous PM emission and SOA formation is markedly higher from gasoline than diesel particle filter (DPF) and catalyst-equipped diesel cars, more so at −7 °C, contrasting with nitrogen oxides (NO(X)). Higher SOA formation from gasoline cars and primary emission reductions for diesels implies gasoline cars will increasingly dominate vehicular total carbonaceous PM, though older non-DPF-equipped diesels will continue to dominate the primary fraction for some time. Supported by state-of-the-art source apportionment of ambient fossil fuel derived PM, our results show that whether gasoline or diesel cars are more polluting depends on the pollutant in question, i.e. that diesel cars are not necessarily worse polluters than gasoline cars.
format Online
Article
Text
id pubmed-5509693
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-55096932017-07-17 Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars Platt, S. M. El Haddad, I. Pieber, S. M. Zardini, A. A. Suarez-Bertoa, R. Clairotte, M. Daellenbach, K. R. Huang, R.-J. Slowik, J. G. Hellebust, S. Temime-Roussel, B. Marchand, N. de Gouw, J. Jimenez, J. L. Hayes, P. L. Robinson, A. L. Baltensperger, U. Astorga, C. Prévôt, A. S. H. Sci Rep Article Carbonaceous particulate matter (PM), comprising black carbon (BC), primary organic aerosol (POA) and secondary organic aerosol (SOA, from atmospheric aging of precursors), is a highly toxic vehicle exhaust component. Therefore, understanding vehicle pollution requires knowledge of both primary emissions, and how these emissions age in the atmosphere. We provide a systematic examination of carbonaceous PM emissions and parameterisation of SOA formation from modern diesel and gasoline cars at different temperatures (22, −7 °C) during controlled laboratory experiments. Carbonaceous PM emission and SOA formation is markedly higher from gasoline than diesel particle filter (DPF) and catalyst-equipped diesel cars, more so at −7 °C, contrasting with nitrogen oxides (NO(X)). Higher SOA formation from gasoline cars and primary emission reductions for diesels implies gasoline cars will increasingly dominate vehicular total carbonaceous PM, though older non-DPF-equipped diesels will continue to dominate the primary fraction for some time. Supported by state-of-the-art source apportionment of ambient fossil fuel derived PM, our results show that whether gasoline or diesel cars are more polluting depends on the pollutant in question, i.e. that diesel cars are not necessarily worse polluters than gasoline cars. Nature Publishing Group UK 2017-07-13 /pmc/articles/PMC5509693/ /pubmed/28706240 http://dx.doi.org/10.1038/s41598-017-03714-9 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Platt, S. M.
El Haddad, I.
Pieber, S. M.
Zardini, A. A.
Suarez-Bertoa, R.
Clairotte, M.
Daellenbach, K. R.
Huang, R.-J.
Slowik, J. G.
Hellebust, S.
Temime-Roussel, B.
Marchand, N.
de Gouw, J.
Jimenez, J. L.
Hayes, P. L.
Robinson, A. L.
Baltensperger, U.
Astorga, C.
Prévôt, A. S. H.
Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars
title Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars
title_full Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars
title_fullStr Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars
title_full_unstemmed Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars
title_short Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars
title_sort gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509693/
https://www.ncbi.nlm.nih.gov/pubmed/28706240
http://dx.doi.org/10.1038/s41598-017-03714-9
work_keys_str_mv AT plattsm gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT elhaddadi gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT piebersm gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT zardiniaa gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT suarezbertoar gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT clairottem gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT daellenbachkr gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT huangrj gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT slowikjg gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT hellebusts gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT temimerousselb gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT marchandn gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT degouwj gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT jimenezjl gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT hayespl gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT robinsonal gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT baltenspergeru gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT astorgac gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars
AT prevotash gasolinecarsproducemorecarbonaceousparticulatematterthanmodernfilterequippeddieselcars