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: 2024-05-06 05:49 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-Brno AIM
Code of the measuring programme: ZSNVA
Locality: Štítná n.Vláří
Sequence Date Value
1 2023-04-21 23:00 123
2 2023-04-22 01:00 124
3 2023-04-23 19:00 128
4 2023-04-24 00:00 121
5 2023-05-31 21:00 125
6 2023-06-01 23:00 127
7 2023-06-02 01:00 130
8 2023-06-19 23:00 127
9 2023-06-20 02:00 131
10 2023-06-21 03:00 127
11 2023-06-30 21:00 121
12 2023-07-07 23:00 124
13 2023-07-10 02:00 141
14 2023-07-12 19:00 123
15 2023-07-19 18:00 132
16 2023-08-21 03:00 122
17 2023-08-22 21:00 128
18 2023-08-24 21:00 129
19 2023-08-25 21:00 128
20 2023-09-12 19:00 128
21 2023-09-13 17:00 136