Ultrafine particles in cities
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Ultrafine particles in cities. / Kumar, Prashant; Morawska, L.; Birmili, W.; Paasonen, P.; Hu, M.; Kulmala, M.; Harrison, R.M.; Norford, L.; Britter, R.
In: Environment International, Vol. 66, 01.05.2014, p. 1-10.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Ultrafine particles in cities
AU - Kumar, Prashant
AU - Morawska, L.
AU - Birmili, W.
AU - Paasonen, P.
AU - Hu, M.
AU - Kulmala, M.
AU - Harrison, R.M.
AU - Norford, L.
AU - Britter, R.
PY - 2014/5/1
Y1 - 2014/5/1
N2 - Ultrafine particles (UFPs; diameter less than 100 nm) are ubiquitous in urban air, and an acknowledged risk to human health. Globally, the major source for urban outdoor UFP concentrations is motor traffic. Ongoing trends towards urbanisation and expansion of road traffic are anticipated to further increase population exposure to UFPs. Numerous experimental studies have characterised UFPs in individual cities, but an integrated evaluation of emissions and population exposure is still lacking. Our analysis suggests that the average exposure to outdoor UFPs in Asian cities is about four-times larger than that in European cities but impacts on human health are largely unknown. This article reviews some fundamental drivers of UFP emissions and dispersion, and highlights unresolved challenges, as well as recommendations to ensure sustainable urban development whilst minimising any possible adverse health impacts.
AB - Ultrafine particles (UFPs; diameter less than 100 nm) are ubiquitous in urban air, and an acknowledged risk to human health. Globally, the major source for urban outdoor UFP concentrations is motor traffic. Ongoing trends towards urbanisation and expansion of road traffic are anticipated to further increase population exposure to UFPs. Numerous experimental studies have characterised UFPs in individual cities, but an integrated evaluation of emissions and population exposure is still lacking. Our analysis suggests that the average exposure to outdoor UFPs in Asian cities is about four-times larger than that in European cities but impacts on human health are largely unknown. This article reviews some fundamental drivers of UFP emissions and dispersion, and highlights unresolved challenges, as well as recommendations to ensure sustainable urban development whilst minimising any possible adverse health impacts.
KW - City environment
KW - Particle exposure
KW - Health impacts
KW - Particle number concentration
KW - Ultrafine particles
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84897784991&partnerID=8YFLogxK
U2 - 10.1016/j.envint.2014.01.013
DO - 10.1016/j.envint.2014.01.013
M3 - Article
C2 - 24503484
VL - 66
SP - 1
EP - 10
JO - Environment International
JF - Environment International
SN - 0160-4120
ER -