The Global Atmosphere Watch (GAW) Programme of the World Meteorological Organisation, UNO/WMO is a system of global monitoring of the atmosphere. It consists of a worldwide measuring network of observation stations and scientific infrastructure.
The AIR sets indoor air guide values, hygienic guide values and risk-related and preliminary guide values for health-based assessment of indoor air.
The main sources of the air pollutant nitrogen dioxide are combustion processes in the industrial and energy production sectors, and road transport. Nitrogen dioxide affects the respiratory mucous membrane and influences the respiratory function.
Particulate matter (PM10) comprises the mass of all particles contained in TSP (total suspended particulates) with an aerodynamic diameter of less than 10 µm.
The new low-emission zone made effective in the town of Aachen (Level 3, Baden-Württemberg) in February brings the total number of low-emission zones in Germany to 52.
