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-pobočka Ústí n/Labem-AIM
Code of the measuring programme: LLILA
Locality: Liberec-Rochlice
Sequence Date Value
1 2023-04-22 16:00 129
2 2023-06-19 18:00 129
3 2023-06-20 16:00 142
4 2023-06-21 17:00 125
5 2023-06-22 17:00 126
6 2023-07-15 17:00 135
7 2023-08-15 16:00 128
8 2023-08-20 16:00 122
9 2023-08-23 17:00 122
10 2023-08-24 16:00 128
11 2023-09-10 15:00 122
12 2023-09-11 16:00 137
13 2023-09-12 16:00 132