O3 8h exceedance
Below are the latest dates of the exceedances of 8-hour target value (120 µg/m3) and hourly information threshold (180 µg/m3) of O3, the concentration at the time of exceedance, and the total number of exceedances during the current year at each site. Learn more about Target Values
O3 Hourly exceedances
Below are the latest dates of the O3 hourly limit value (180 µg/m3) exceedances, the concentration at the time of exceedance, and the total number of exceedances during the current year at each site. Learn more about Limit Values
All data are preliminary and subject to change.