Information about air quality in the Czech Republic

Year: 2019

Preliminary overview of the ambient limits exceedances

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

Updated: 2020-06-30 05:19 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: ARIEA
Locality: Praha 2-Riegrovy sady
Sequence Date Value
1 2019-04-19 17:00 134.6
2 2019-04-20 17:00 130.6
3 2019-04-21 16:00 125.8
4 2019-05-24 18:00 124.6
5 2019-05-25 16:00 123.5
6 2019-06-02 17:00 128.3
7 2019-06-04 17:00 139.0
8 2019-06-05 17:00 132.5
9 2019-06-14 17:00 127.1
10 2019-06-18 18:00 122.9
11 2019-06-24 18:00 127.3
12 2019-06-26 17:00 147.1
13 2019-06-27 16:00 121.7
14 2019-06-29 17:00 137.1
15 2019-06-30 16:00 134.3
16 2019-07-01 15:00 126.3
17 2019-07-06 18:00 138.6
18 2019-07-18 18:00 120.5
19 2019-07-20 17:00 131.0
20 2019-07-24 17:00 125.1
21 2019-07-25 17:00 136.0
22 2019-07-26 15:00 121.6
23 2019-07-29 16:00 128.2
24 2019-08-30 17:00 141.5
25 2019-08-31 16:00 134.1