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: ČHMÚ - Libuš AIM
Code of the measuring programme: ALIBA
Locality: Praha 4-Libuš
Sequence Date Value
1 2023-05-29 17:00 124
2 2023-06-01 17:00 136
3 2023-06-18 18:00 139
4 2023-06-19 17:00 121
5 2023-06-20 17:00 134
6 2023-06-22 17:00 128
7 2023-06-29 18:00 137
8 2023-07-07 17:00 129
9 2023-07-08 17:00 134
10 2023-07-09 17:00 151
11 2023-07-10 17:00 130
12 2023-07-11 17:00 126
13 2023-07-19 16:00 121
14 2023-08-16 16:00 133
15 2023-08-18 17:00 129
16 2023-08-19 17:00 130
17 2023-08-20 17:00 139
18 2023-08-21 17:00 131
19 2023-08-23 17:00 134
20 2023-08-24 16:00 135
21 2023-09-07 17:00 128
22 2023-09-10 17:00 140
23 2023-09-11 16:00 127
24 2023-09-12 16:00 132