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 - pob. Plzeň
Code of the measuring programme: CCHUA
Locality: Churáňov
Sequence Date Value
1 2023-05-29 20:00 121
2 2023-05-31 17:00 126
3 2023-06-01 08:00 123
4 2023-06-18 18:00 128
5 2023-06-19 21:00 126
6 2023-06-20 14:00 130
7 2023-06-26 21:00 138
8 2023-06-27 00:00 124
9 2023-07-08 22:00 126
10 2023-07-09 13:00 130
11 2023-07-10 00:00 125
12 2023-07-11 20:00 124
13 2023-07-14 18:00 124
14 2023-07-19 18:00 122
15 2023-08-17 03:00 121
16 2023-08-22 16:00 133
17 2023-09-11 14:00 122
18 2023-09-12 06:00 125