The guidelines provide background information and guidance to (inter)national and local authorities in the process of risk assessment.| www.who.int
WHO fact sheet on ambient (outdoor) air quality guidelines: includes key facts, definition, health effects, guideline values and WHO response.| www.who.int
Air pollution kills an estimated seven million people worldwide every year. WHO data shows that 9 out of 10 people breathe air containing high levels of pollutants. WHO is working with countries to monitor air pollution and improve air quality.| www.who.int
The evidence is clear that climate change is already having a serious impact on human lives and health. It threatens the essential ingredients of good health - clean air, safe drinking water, nutritious food supply, and safe shelter - and has the potential to undermine decades of progress in global health.| www.who.int
WHO fact sheet on indoor air pollution: includes key facts, definition, impact on health, impact on health equity, WHO response.| www.who.int