A large reduction in airborne particle number concentrations at the time of the introduction of "sulphur free" diesel and the London Low Emission Zone

被引：73

作者：

Jones, Alan M. ^{[1
]}

Harrison, Roy M. ^{[1
,3
]}

Barratt, Benjamin ^{[2
]}

Fuller, Gary ^{[2
]}

机构：

[1] Univ Birmingham, Sch Geog Earth & Environm Sci, Div Environm Hlth & Risk Management, Birmingham B15 2TT, W Midlands, England

[2] Kings Coll London, Environm Res Grp, London SE1 9NH, England

[3] King Abdulaziz Univ, Ctr Excellence Environm Studies, Jeddah 21589, Saudi Arabia

来源：

ATMOSPHERIC ENVIRONMENT | 2012年 / 50卷

关键词：

Particulate matter; Particle number count; Sulphur free fuel; Low Emission Zone; PARTICULATE MATTER EMISSIONS; ULTRAFINE PARTICLES; CATALYTIC-CONVERTER; AIR-POLLUTION; FUEL; VEHICLES; HEALTH; URBAN; MASS; HIGHWAY;

D O I：

10.1016/j.atmosenv.2011.12.050

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Hourly measurements of airborne particle number concentration (a metric dominated by ultrafine particles) at two sites in London and a site in Birmingham show that over a period of a few months in late 2007 concentrations were reduced by between 30 and 59%. At the London kerbside site particle number emissions from vehicles were reduced by 65% compared to emissions of NOx. These reductions occurred at the same time as the introduction of "sulphur free" diesel fuel and the London Low Emission Zone for heavy goods vehicles, and in view of the reduction in Birmingham and the limited change in vehicle technologies at that time, is probably primarily due to the change in fuel sulphur. There is an absence of any similar reduction in the concentration of the regulated air quality mass metrics which may provide an opportunity for further evaluating the effects of ultrafine particle concentrations on human health. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：129 / 138

页数：10