Air pollution
Facts and statistics about air pollution in Norway
Wood-burning stoves
![Piperøyk Illustrasjonsfoto: Colourbox.com piperøyk](/globalassets/bilder/miljo/piperoyk_vinter.jpg?preset=mainbodywidth&maxwidth=970&width=970)
Wood-burning stoves
On cold days, high concentrations of wood-burning particles in the air can be a problem in densely populated areas.
Air pollution in Norway
![Different types of particulate matter and gases are mixed in outdoor air: fine and coarse particulate matter (PM2.5 and PM10) from wood-burning, exhaust fumes, asphalt and car tyres. In addition there is nitrogen dioxide (NO2) from cars, whilst ozone is produced in the air from components from different sources. In combination, or by themselves, pollutants can trigger health problems among children and vulnerable individuals, particularly in winter Illustration: Norwegian Institute of Public Health Informasjonsgrafikk](/globalassets/bilder/folkehelserapporten/FHR_luftforurensing_eng.jpg?preset=mainbodywidth&maxwidth=970&width=970)
Folkehelserapporten: Air pollution in Norway
Air pollution due to particulate matter (PM), nitrogen dioxide and ozone is a major cause of health problems and disease worldwide.
Summary
![Foto: Linn Bryhn Jacobsen, Miljødirektoratet Mor og barn med sykkel i trafikken](/globalassets/bilder/figurer-og-tegninger/uteluft_forsidebilde.png?preset=mainbodywidth&maxwidth=970&width=970)
Håndbok for uteluft - luftkvalitetskriterier: Summary
The purpose of the air quality criteria is to prevent health effects of air pollution. The criteria are set so low that most people can be exposed to these levels without any adverse effects on health.