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: ASTOA
Locality: Praha 5-Stodůlky
Sequence Date Value
1 2023-05-22 17:00 121
2 2023-06-01 17:00 128
3 2023-06-18 18:00 130
4 2023-06-20 17:00 141
5 2023-06-22 17:00 121
6 2023-06-26 17:00 126
7 2023-06-29 18:00 134
8 2023-07-07 18:00 133
9 2023-07-08 17:00 135
10 2023-07-09 17:00 146
11 2023-07-10 17:00 124
12 2023-07-11 17:00 126
13 2023-08-15 16:00 126
14 2023-08-16 16:00 126
15 2023-08-18 17:00 129
16 2023-08-19 16:00 124
17 2023-08-20 16:00 127
18 2023-08-23 17:00 129
19 2023-08-24 16:00 136
20 2023-09-07 17:00 127
21 2023-09-10 17:00 139
22 2023-09-11 16:00 127
23 2023-09-12 16:00 126