Concentrations of O₃ in 2023 in relation to the 2030 EU target value threshold

The map shows the 95.07th percentile for O₃ maximum daily 8-hour mean concentrations. 95.07th percentile, representing the 19th-highest value in a complete series calculated on a 1-year basis, referred as the target value threshold. It is related to the 2030 O₃ target value allows 18 exceedances of the 120µg/m³ threshold over 3 years.