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: 2024-05-08 05:47 CEST

Values given regardless of whether the number of valid measurement meets the criteria for calculating the aggregated data (annual average).

CHMI is responsible for data completeness and quality only at the stations that are administered by CHMI (see the entry "Owner" indicated with the published data).

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: ZÚ, SMOva
Data supplier: KHS-Ostrava
Code of the measuring programme: TOROK
Locality: Ostrava-Radvanice OZO
Sequence Date Value
1 2023-04-21 18:00 126
2 2023-04-22 16:00 125
3 2023-06-01 17:00 124
4 2023-06-19 17:00 131
5 2023-06-20 17:00 140
6 2023-06-30 16:00 125
7 2023-07-08 17:00 136
8 2023-07-09 16:00 144
9 2023-07-10 14:00 135
10 2023-07-16 14:00 122
11 2023-07-19 17:00 128
12 2023-08-16 16:00 124
13 2023-08-21 17:00 131
14 2023-08-22 16:00 121
15 2023-08-24 16:00 140
16 2023-08-25 16:00 121
17 2023-09-06 17:00 122
18 2023-09-09 16:00 123
19 2023-09-11 16:00 123
20 2023-09-12 16:00 126