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-pobočka Ústí n/Labem-AIM
Code of the measuring programme: UULKA
Locality: Ústí n.L.-Kočkov
Sequence Date Value
1 2020-04-07 20:00 120.2
2 2020-04-09 15:00 121.7
3 2020-04-24 19:00 138.4
4 2020-04-25 00:00 120.2
5 2020-05-08 20:00 128.8
6 2020-05-09 18:00 136.8
7 2020-05-10 00:00 122.5
8 2020-07-25 17:00 125.9
9 2020-08-01 16:00 123.6
10 2020-08-07 18:00 132.1
11 2020-08-08 16:00 128.3
12 2020-08-09 15:00 141.5
13 2020-08-10 00:00 131.1
14 2020-08-12 18:00 134.9
15 2020-08-13 17:00 138.1
16 2020-08-14 16:00 130.2
17 2020-08-17 17:00 131.8
18 2020-09-13 19:00 132.4
19 2020-09-14 19:00 125.1
20 2020-09-15 16:00 121.9
21 2020-09-16 20:00 139.0
22 2020-09-17 00:00 131.0
23 2020-09-22 19:00 120.9