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: ČHMÚ - Libuš AIM
Code of the measuring programme: ARIEA
Locality: Praha 2-Riegrovy sady
Sequence Date Value
1 2023-06-01 17:00 124
2 2023-06-18 17:00 133
3 2023-06-20 16:00 139
4 2023-06-26 18:00 122
5 2023-06-29 18:00 140
6 2023-07-07 18:00 136
7 2023-07-08 17:00 133
8 2023-07-09 16:00 145
9 2023-07-11 17:00 126
10 2023-08-15 16:00 130
11 2023-08-19 17:00 138
12 2023-08-23 17:00 124
13 2023-08-24 17:00 140
14 2023-09-07 17:00 121
15 2023-09-10 17:00 140
16 2023-09-11 17:00 129
17 2023-09-12 18:00 123