Air pollution alert
Air pollution Alerts are issued here when any of the following thresholds in Directive 2008/50/EC are exceeded:
- Ozone Information 180 µg/m3 for 1 hour
- Ozone Alert 240 µg/m3 for 1 hour
- Sulphur Dioxide Alert 500 µg/m3 for 3 consecutive hours over 100km2 area
- Nitrogen Dioxide Alert 400 µg/m3 for 3 consecutive hours over 100km2 area
Alerts will be displayed for a 24 hour period after they have been exceeded.