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: TTROA
Locality: Třinec-Kosmos
Sequence Date Value
1 2023-04-21 17:00 130
2 2023-04-22 17:00 130
3 2023-04-23 16:00 122
4 2023-05-29 18:00 127
5 2023-05-30 18:00 121
6 2023-05-31 17:00 126
7 2023-06-01 17:00 135
8 2023-06-19 17:00 133
9 2023-06-20 17:00 153
10 2023-06-22 17:00 139
11 2023-06-26 17:00 130
12 2023-07-07 17:00 129
13 2023-07-08 17:00 126
14 2023-07-09 16:00 142
15 2023-07-10 15:00 136
16 2023-07-16 14:00 122
17 2023-07-19 17:00 130
18 2023-08-20 16:00 121
19 2023-08-21 17:00 128
20 2023-08-24 16:00 132
21 2023-09-09 16:00 122