Information about air quality in the Czech Republic

Year: 2022

Preliminary overview of the ambient limits exceedances

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

Updated: 2023-06-30 09:52 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: TOVKA
Locality: Opava-Kateřinky
Sequence Date Value
1 2022-04-13 16:00 121.9
2 2022-04-14 17:00 125.0
3 2022-05-11 20:00 130.3
4 2022-05-12 00:00 121.3
5 2022-06-03 17:00 133.0
6 2022-06-05 16:00 132.4
7 2022-06-23 19:00 122.5
8 2022-07-01 15:00 130.2
9 2022-07-20 17:00 136.0
10 2022-07-21 16:00 146.8
11 2022-07-22 16:00 127.6
12 2022-07-23 15:00 135.5
13 2022-07-25 17:00 125.2
14 2022-08-03 17:00 129.4
15 2022-08-04 17:00 132.1
16 2022-08-05 17:00 140.9
17 2022-08-17 17:00 148.2
18 2022-08-18 17:00 151.5
19 2022-08-19 15:00 128.3
20 2022-08-26 17:00 137.1