ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)60962
CIS number 93-1544
ISSN - Serial title 0271-3586 - American Journal of Industrial Medicine
Year 1991
Convention or series no.
Author(s) Ulfvarson U., Alexandersson R., Dahlqvist M., Ekholm U., Bergstr÷m B.
Title Pulmonary function in workers exposed to diesel exhausts: The effect of control measures
Bibliographic information Mar. 1991, Vol.19, No.3, p.283-289. 8 ref.
Abstract To assess the protective effect of exhaust pipe filters or respirators on pulmonary function, 15 workers in a tunnel construction site were studied. The total and respirable dust, combustible matter in respirable dust, carbon monoxide, nitrogen monoxide and nitrogen dioxide were measured for each subject during entire work shifts. The effect of the exposure on the lung function variables was measured by dynamic spirometry, carbon monoxide single breath technique, and nitrogen single breath wash-out. The exhaust pipe filtering had a protective effect, directly discernible in the drivers on vital capacity and FEV1.0 and for the whole group on FEV% and transfer factor. The dust respirators had no effect, probably because of the difficulties in correctly using personal protection under the circumstances in the tunnel. In the absence of a true exposure assessment, control measures for diesel exhaust can be tested by medical effect studies. Catalytic particle filters of diesel exhausts are one method of rendering the emissions less irritant, although they will not remove irritant gases. An indicator of diesel exhaust exposure should include the particle fraction of the diesel exhausts, but a discrimination between different sources of organic dust must be possible.
Descriptors (primary) filtration; diesel engines; nitrogen dioxide; carbon monoxide; nitrogen oxides; sampling and analysis; tunnelling; construction work; pulmonary function; personal protective equipment; exhaust gases
Descriptors (secondary) particulate filters; exposure; respiratory function tests
Document type D - Periodical articles
Country / State or ProvinceSweden
Subject(s) Toxic and dangerous substances
Broad subject area(s) Occupational medicine, epidemiology
Browse category(ies) Inorganic substances
Personal protection
Carbon monoxide