Indicator air

The level of particulate matter (PM10) have been substantially reduced in the last 20 years, thanks to the adopted air pollution control measures. Nevertheless, the annual and daily limits are still occasionally exceeded in cities and along heavily trafficked roads. In view of this situation, the status has to be classified as medium. Only at monitoring stations located above 1,000 metres are the measured levels of PM10 significantly below the limit.

Since the levels of PM10 are attributable to a variety of sources and pollutants, only a comprehensive set of measures implemented at both the local and the international level can effectively reduce them. To that end, the Swiss Federal Council has adopted an action plan on particulate matter, which is designed to reduce emissions from all the principal sources. Possible measures include fitting particulate filters to diesel engines, and applying stricter emission limit levels to wood-fired heating systems.

• Related indicators
• Heavy metal emissions
• Particulate matter emissions
• Particulate matter immissions (PM2.5) in urban environment

The other countries of Europe also measure PM10 immissions and calculate corresponding indicators. The level of PM10 pollution in Switzerland is similar to those in its neighbouring countries. PM10 pollution is higher in major urban centres and heavily industrialised zone.

The current status and development of air pollution throughout Switzerland are measured and recorded by the National Air Pollution Monitoring Network (NABEL), which is jointly operated by the FOEN and EMPA (Swiss Federal Laboratories for Materials Science and Technology). It comprises 16 measurement stations distributed throughout the country, which provide data relating to all the most important pollution situations. For the assessment of PM10 immissions, data are collected from NABEL stations with permanent measurement cycles.