Preventive warning for PM10 pollution deactivated
Given the favourable evolution of the weather conditions since the pollution episode was declared on Monday, 23 June, the Directorate General for Environmental Quality and Climate Change has deactivated measures in place for high levels of PM10 as of Wednesday, 25 June.
The Government of Catalonia’s Directorate General for Environmental Quality has deactivated measures in place for high levels of PM10 in the Barcelona area, as of Wednesday, 25 June.
Levels of PM10 dropped yesterday at the stations belonging to the Atmospheric Pollution Monitoring and Forecast Network (XVPCA), and weather forecasts are favourable.
What are PM10 and where do they come from?
Suspended particles under 10 microns in size are small solid or liquid particles that float in the air. Up to 40% of these particles are generated by vehicle engines, tyres and brakes. The rest comes from dust from public works and demolitions and possibly even Saharan dust clouds.