作者
Alessandro A Zardini, Stephen M Platt, Michael Clairotte, Imad El Haddad, Brice Temime-Roussel, Nicolas Marchand, Irena Ježek, Luka Drinovec, Griša Močnik, Jay G Slowik, Urbano Manfredi, André SH Prévôt, Urs Baltensperger, Covadonga Astorga
发表日期
2014/9/1
期刊
Atmospheric Environment
卷号
94
页码范围
307-315
出版商
Pergamon
简介
Regulated and unregulated emissions from a 2-stroke and a 4-stroke scooter were characterized during a legislative driving cycle in a certified laboratory. Scooter exhaust was analyzed at the tailpipe, in a dilution tunnel, and partly collected in a mobile smog chamber for photochemical ageing. We present evidence that the photochemically aged exhaust from a 2-stroke and a 4-stroke scooter produces considerable amounts of secondary organic aerosol: from 1.5 to 22.0 mg/km, and from 5.5 to 6.6 mg/km, respectively. Tests were repeated after replacing the standard petrol and synthetic lube oil with an alkylate fuel (with low content of aromatic compounds) and ultra-clean lube oil (low ash forming potential). We observed emission reduction (with some exceptions) for several gaseous and particulate phase species, in particular for carbon monoxide (from 8% up to 38% and from 31% to 50%, for the 2-stroke and the 4 …
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