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Document ID (ISN)111930
CIS number 11-0525
ISSN - Serial title 1351-0711 - Occupational and Environmental Medicine
Year 2010
Convention or series no.
Author(s) Strak M., Boogaard H., Meliefste K., Oldenwening M., Zuurbier M., Brunekreef B., Hoek G.
Title Respiratory health effects of ultrafine and fine particle exposure in cyclists
Bibliographic information Feb. 2010, Vol.67, No.2, p.118-124. Illus. 35 ref.
Abstract Monitoring studies have shown that commuters are exposed to high air pollution concentrations, but there is limited evidence of associated health effects. This study was carried out to investigate the acute respiratory health effects of air pollution related to commuting by bicycle. Twelve healthy adults cycled a low- and a high-traffic intensity route during morning rush hour in Utrecht, The Netherlands. Exposure to traffic-related air pollution was characterised by measurements of PM10, soot and particle number. Before, directly after and 6 h after cycling we measured lung function (FEV1, FVC, PEF), exhaled nitrous oxide (NO) and respiratory symptoms. The association between post- minus pre-exposure difference in health effects and exposure during cycling was evaluated with linear regression models. The average particle number concentration was 59% higher, while the average soot concentration was 39% higher on the high-traffic route than on the low-traffic route. There was no difference for PM10. Contrary to expectations, associations between air pollution during cycling and lung function changes immediately after cycling were mostly positive. Six hours after cycling, associations between air pollution exposure and health were mostly negative for lung function changes and positive for changes in exhaled NO, although non-significant. Implications of these findings are discussed.
Descriptors (primary) atmospheric pollution; outdoor communication ways; commuting; health hazards
Descriptors (secondary) Netherlands; nitrous oxide; particle size distribution; soot; number concentration determination; spirometry; statistical evaluation
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Environmental pollution
Occupational pathology
Broad subject area(s) Occupational medicine, epidemiology
Chemical safety
Browse category(ies) Air pollution