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: CHMI-brand Ostrava AIM
Code of the measuring programme: TOFFA
Locality: Ostrava-Fifejdy
Sequence Date Value
1 2019-04-19 17:00 125.5
2 2019-04-20 16:00 125.8
3 2019-05-25 17:00 126.4
4 2019-06-14 18:00 156.2
5 2019-06-18 17:00 128.4
6 2019-06-25 17:00 126.0
7 2019-06-26 18:00 131.5
8 2019-06-27 18:00 126.3
9 2019-06-30 17:00 123.1
10 2019-07-01 15:00 138.3
11 2019-07-06 17:00 136.7
12 2019-07-19 15:00 121.5
13 2019-07-20 18:00 131.5
14 2019-07-25 18:00 120.5
15 2019-07-26 16:00 120.8
16 2019-07-28 15:00 121.9
17 2019-07-29 17:00 122.2
18 2019-08-29 16:00 127.6
19 2019-08-30 19:00 128.0
20 2019-08-31 17:00 125.9