Identification of brake wear particles and derivation of a quantitative tracer for brake dust at a major road

Research output: Contribution to journalArticle

Standard

Identification of brake wear particles and derivation of a quantitative tracer for brake dust at a major road. / Gietl, Johanna; Lawrence, R; Thorpe, AJ; Harrison, Roy.

In: Atmospheric Environment, Vol. 44, No. 2, 01.01.2010, p. 141-146.

Research output: Contribution to journalArticle

Harvard

APA

Vancouver

Author

Bibtex

@article{9da1f312767641f3877da8903a4f890f,
title = "Identification of brake wear particles and derivation of a quantitative tracer for brake dust at a major road",
abstract = "Traffic-generated air pollutant emissions can be classified into exhaust and non-exhaust emissions. Increased attention is focussing on non-exhaust emissions as exhaust emissions are progressively limited by regulations. To characterise metal-rich emission from abrasion processes, size-segregated analysis of atmospheric aerosol particles sampled with micro-orifice uniform deposit impactors (MOUDI) in March 2007 in London was performed. The samples were collected at a roadside and a background site and were analysed for Al, Ba, Cu, Fe, Sb, Ti, V, Zn, Ca2+, K+, Mg2+, Na+, and NH4+ Most components showed a clear roadside increment, which was evident as a higher mass concentration and a change in the size distribution. In particular, Fe, Cu, Ba, and Sb correlated highly, indicative of a common traffic-related source. Using complementary information on the fleet composition, vehicle number and average speed, the brake wear emission was calculated using the EMEP/CORINAIR emission database. The total PM10 and barium emission of the traffic was determined by ratio to NOx whose source strength was estimated from published emission factors. Barium was found to comprise 1.1% of brake wear (PM10) particles from the traffic fleet as a whole, allowing its use as a quantitative tracer of brake wear emissions at other traffic-influenced sites. (C) 2009 Elsevier Ltd. All rights reserved.",
keywords = "Urban roadside, Barium, Size-segregated analysis, Brake wear, Trace metals, London",
author = "Johanna Gietl and R Lawrence and AJ Thorpe and Roy Harrison",
year = "2010",
month = jan,
day = "1",
doi = "10.1016/j.atmosenv.2009.10.016",
language = "English",
volume = "44",
pages = "141--146",
journal = "Atmospheric Environment",
issn = "1352-2310",
publisher = "Elsevier",
number = "2",

}

RIS

TY - JOUR

T1 - Identification of brake wear particles and derivation of a quantitative tracer for brake dust at a major road

AU - Gietl, Johanna

AU - Lawrence, R

AU - Thorpe, AJ

AU - Harrison, Roy

PY - 2010/1/1

Y1 - 2010/1/1

N2 - Traffic-generated air pollutant emissions can be classified into exhaust and non-exhaust emissions. Increased attention is focussing on non-exhaust emissions as exhaust emissions are progressively limited by regulations. To characterise metal-rich emission from abrasion processes, size-segregated analysis of atmospheric aerosol particles sampled with micro-orifice uniform deposit impactors (MOUDI) in March 2007 in London was performed. The samples were collected at a roadside and a background site and were analysed for Al, Ba, Cu, Fe, Sb, Ti, V, Zn, Ca2+, K+, Mg2+, Na+, and NH4+ Most components showed a clear roadside increment, which was evident as a higher mass concentration and a change in the size distribution. In particular, Fe, Cu, Ba, and Sb correlated highly, indicative of a common traffic-related source. Using complementary information on the fleet composition, vehicle number and average speed, the brake wear emission was calculated using the EMEP/CORINAIR emission database. The total PM10 and barium emission of the traffic was determined by ratio to NOx whose source strength was estimated from published emission factors. Barium was found to comprise 1.1% of brake wear (PM10) particles from the traffic fleet as a whole, allowing its use as a quantitative tracer of brake wear emissions at other traffic-influenced sites. (C) 2009 Elsevier Ltd. All rights reserved.

AB - Traffic-generated air pollutant emissions can be classified into exhaust and non-exhaust emissions. Increased attention is focussing on non-exhaust emissions as exhaust emissions are progressively limited by regulations. To characterise metal-rich emission from abrasion processes, size-segregated analysis of atmospheric aerosol particles sampled with micro-orifice uniform deposit impactors (MOUDI) in March 2007 in London was performed. The samples were collected at a roadside and a background site and were analysed for Al, Ba, Cu, Fe, Sb, Ti, V, Zn, Ca2+, K+, Mg2+, Na+, and NH4+ Most components showed a clear roadside increment, which was evident as a higher mass concentration and a change in the size distribution. In particular, Fe, Cu, Ba, and Sb correlated highly, indicative of a common traffic-related source. Using complementary information on the fleet composition, vehicle number and average speed, the brake wear emission was calculated using the EMEP/CORINAIR emission database. The total PM10 and barium emission of the traffic was determined by ratio to NOx whose source strength was estimated from published emission factors. Barium was found to comprise 1.1% of brake wear (PM10) particles from the traffic fleet as a whole, allowing its use as a quantitative tracer of brake wear emissions at other traffic-influenced sites. (C) 2009 Elsevier Ltd. All rights reserved.

KW - Urban roadside

KW - Barium

KW - Size-segregated analysis

KW - Brake wear

KW - Trace metals

KW - London

U2 - 10.1016/j.atmosenv.2009.10.016

DO - 10.1016/j.atmosenv.2009.10.016

M3 - Article

VL - 44

SP - 141

EP - 146

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

IS - 2

ER -