Pollution alerts & notifications

Pollution Notifications


Pollution Alerts

Air pollution Alerts are issued here when any of the following thresholds within Air Quality Standards Regulations (2010) 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.