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 - Libuš AIM
Code of the measuring programme: ASUCA
Locality: Praha 6-Suchdol
Sequence Date Value
1 2020-04-09 17:00 130.3
2 2020-04-17 16:00 127.8
3 2020-04-23 18:00 123.1
4 2020-04-24 17:00 126.4
5 2020-04-27 17:00 122.5
6 2020-05-08 18:00 134.1
7 2020-05-09 17:00 140.7
8 2020-06-27 16:00 125.5
9 2020-07-20 17:00 128.6
10 2020-07-22 18:00 122.2
11 2020-07-23 17:00 121.1
12 2020-07-30 18:00 124.9
13 2020-08-01 17:00 124.9
14 2020-08-07 17:00 132.2
15 2020-08-08 17:00 136.5
16 2020-08-09 17:00 148.6
17 2020-08-12 17:00 131.4
18 2020-08-13 16:00 129.5
19 2020-08-14 16:00 122.3
20 2020-08-17 18:00 132.0
21 2020-09-16 18:00 126.4