Title: Two-stroke scooters are a dominant source of air pollution in many cities
Authors: PLATT StephenEL HADDAD ImadPIEBER SimoneHUANG RujinZARDINI ALESSANDROCLAIROTTE MICHAELSUAREZ BERTOA RICARDOBARMET P.PFAFFENBERGER LWOLF RobertSLOWIK JayFULLER S.jKALBERER MarkusCHIRICO RobertoDommen J.ASTORGA-LLORENS MariaZIMMERMANN R.MARCHAND NicholasHELLEBUST StigTEMIME-ROUSSEL BriceBALTENSPERGER UrsPREVOT A.s.h.
Citation: NATURE COMMUNICATIONS vol. 5 p. 3749
Publisher: NATURE PUBLISHING GROUP
Publication Year: 2014
JRC N°: JRC88425
ISSN: 2041-1723
URI: http://www.nature.com/ncomms/2014/140513/ncomms4749/full/ncomms4749.html
http://publications.jrc.ec.europa.eu/repository/handle/JRC88425
DOI: 10.1038/ncomms4749
Type: Articles in periodicals and books
Abstract: Fossil fuel powered vehicles emit significant primary PM, e.g. black carbon and primary organic aerosol (POA), and produce secondary organic aerosol (SOA), via atmospheric oxidation of precursor gases in the exhaust. We quantify, for the first time, secondary organic aerosol production from two-stroke (2S) scooters. Passenger cars and trucks, particularly diesel vehicles, are thought to be the main vehicular PM sources8. This needs re-thinking, as we show for the first time that elevated PM levels can be a consequence of ‘asymmetric pollution’ from two-stroke (2S) scooters; vehicles that constitute a small fraction of the fleet, but can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to 1000s of times higher than from other vehicle classes. Further, we demonstrate that oxidation processes producing SOA from vehicle exhaust also produce potentially toxic ‘reactive oxygen species’.
JRC Directorate:Energy, Transport and Climate

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.