The University of Southampton
University of Southampton Institutional Repository

Roadside particulate and trace element concentrations at four London sites

Williams, Ian D., McCrae, Ian S., Ward, Neil I. and Richmond, Nigel A. (1998) Roadside particulate and trace element concentrations at four London sites International Journal of Vehicle Design, 20, pp. 21-29. (doi:10.1504/IJVD.1998.001847).

Record type: Article


Measurements of black smoke (BS), total suspended particulates (TSP) and selected trace element concentrations were made at two locations (four sites) in London, UK. One location was in Ealing, West London, the other was in Wood Green, North London. At each location, a residential and commercial roadside site was identified and monitored. The black smoke measurements were taken over 24-hour periods via a British standard 8-port smoke sampler situated inside a mobile laboratory. The TSP measurements were taken during peak traffic periods and 24-hour periods using glass fibre filters and high volume sampling pumps. At one site (the residential site at Wood Green), the TSP samples were analysed for 17 elements Pb, Zn, Br, Mg, Al, V, Fe, Sb, Mo, Co, Ni, Cu, Mn, Cr, Ba, Sn and Pt. After gravimetric analysis, the trace elements were extracted from the filter papers and analysed using inductively coupled plasma-source mass spectrometry. Two methods of extracting the trace elements were investigated, and the most efficient technique, the ''nitric-perchloric'', was used. Quantitative determinations of BS were made for a total of 98 and 115 days at the Ealing and Wood Green locations respectively during 1991/92. The average concentrations determined at the residential locations were 18.3 (Ealing) and 20.5 (Wood Green) µg/m³, respectively, and for the commercial sites the corresponding values were 30.6 and 69.5 µg/m³.

The daily TSP values at the four sites are also reported and compared with measurements taken during the morning and afternoon rush hours. The particulate values reported here are discussed and compared with previously reported measurements in the UK. A total of 55 filter papers from the residential site at Wood Green were extracted for trace element analysis and the results are reported. Sufficient samples were collected to allow the data to be divided into morning, afternoon and 24-hour time periods, allowing comparison of the trends with the TSP data. The total and individual contributions of the trace elements to the particulate mass have been calculated and the most abundant trace elements (Zn, Pb, Br, Fe, Al, Mg) identified.

Full text not available from this repository.

More information

Published date: 1998
Keywords: black smoke, inductively coupled plasma-source mass spectrometry, pm10, total suspended particulates, trace elements


Local EPrints ID: 74698
ISSN: 1741-5314
PURE UUID: 181ff9c8-fbaa-4598-9369-5a67455f9d74
ORCID for Ian D. Williams: ORCID iD

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:45

Export record



Author: Ian D. Williams ORCID iD
Author: Ian S. McCrae
Author: Neil I. Ward
Author: Nigel A. Richmond

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.