Ambient air lead concentrations have been measured in Helsinki since 1978.
The mean concentrations at various stations reached maximum values in 1980, being then 209- 1150 ng/m3.
From 1980 to 1991 the concentrations decreased to one-righth (335-41 ng/m3) at the three stations where measurements were made continuously.
Concomitantly the estimated annual lead emissions in Helsinki decreased from 78 to 9 tons, mainly owing to the reduced emissions of lead in exhaust gases from road traffic.
The mean concentration of lead in the blood of children in day-care centres was 46 mug/l in 1983 and 30 mug/l 5 years later.
Mots-clés Pascal : Pollution air, Analyse chimique, Teneur air ambiant, Sang, Enfant, Homme, Taux, Epidémiologie, Finlande, Europe
Mots-clés Pascal anglais : Air pollution, Chemical analysis, Ambient air concentration, Blood, Child, Human, Rate, Epidemiology, Finland, Europe
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0083157
Code Inist : 002B03M02. Création : 199406.