The degree to which air is polluted; the type and maximum concentration of man-produced pollutants that should be permitted in the atmosphere. (Source: GEMET/ ALL / WRIGHT)
Multilateral environment agreements tagged with air quality
You can see below a list of multilateral environment agreements. Use the links on the right to view the content tagged with air quality. This includes official treaty texts, decisions, recommendations, and other related informational documents such as publications, annuals, meetings, documents or reports.