Information about air quality in the Czech Republic

Year: 2023

Preliminary overview of the ambient limits exceedances

calculated of both operational data (yet unverified) and verified data

Updated: 2024-05-05 05:48 CEST

Values given regardless of whether the number of valid measurement meets the criteria for calculating the aggregated data (annual average).

Description Value
Purpose: Health protection
Pollutant: O₃ - ozone
Averaging interval: 8 hours
Unit: µg/m³
Ambient limit: 120
Max. permissible number of exceedances: 25
Owner: ČHMÚ
Data supplier: CHMI-brand Ostrava AIM
Code of the measuring programme: MPRRA
Locality: Přerov
Sequence Date Value
1 2023-04-22 16:00 121
2 2023-05-31 16:00 123
3 2023-06-19 17:00 123
4 2023-06-20 16:00 127
5 2023-06-22 19:00 133
6 2023-07-09 17:00 136
7 2023-07-19 17:00 123
8 2023-08-16 16:00 121
9 2023-08-24 17:00 130