|
Title:
|
|
Ultrafine particles and carbon from road traffic emissions : a literature study [TNO-MA-161]
|
|
|
|
Author(s):
|
|
|
|
|
|
Published by:
|
Publication date:
|
|
ECN
|
1-3-2000
|
|
|
|
ECN report number:
|
Document type:
|
|
ECN-C--00-037
|
ECN publication
|
|
|
|
Number of pages:
|
Full text:
|
|
38
|
Download PDF
|
Abstract:
ECN and TNO carried out a literature search on the relation betweenultrafine particles/carbon emitted by road traffic and their off-road
concentrations after dispersion. Background of the study is the correlation
of respiratory health effects with the levels of particulate matter in urban
environments. This association may be caused by various characteristics of
the particulates: the number of ultrafine particles, the mass concentration
of PM2.5 and PM10 or the chemical composition. In this report, an attempt is
made to quantify the contribution of road traffic to the number of ultrafine
particles and the amount of carbon. 'Black-smoke', for which a large national
data set is available, was used as a proxy for carbon. A search was made for
information on a relation between the number of ultrafine particles and
levels of black smoke. Therefore the study was initiated along two lines,
separately described in parts A and B: Part A is devoted to a description of
the knowledge on ultrafine particles, while Part B is focused on a more
quantitative assessment of carbon levels and emissions. The study was funded
by the Ministry of Housing, Physical Planning and Environment and performed
in the period November 1999 - February 2000. 37 refs.
Back to List