Information about air quality in the Czech Republic

Year: 2020

Preliminary overview of the ambient limits exceedances

calculated of both operational data (yet unverified) and verified data

Updated: 2021-06-30 06:00 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 - pob. Plzeň
Code of the measuring programme: CCHUA
Locality: Churáňov
Sequence Date Value
1 2020-04-07 17:00 123.2
2 2020-04-09 17:00 127.2
3 2020-04-17 17:00 120.5
4 2020-04-18 00:00 120.2
5 2020-04-24 18:00 131.1
6 2020-04-25 03:00 131.6
7 2020-05-08 23:00 131.1
8 2020-05-09 00:00 131.8
9 2020-07-31 04:00 120.0
10 2020-08-08 23:00 122.8
11 2020-08-09 04:00 128.6
12 2020-08-10 00:00 127.6