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: MPRRA
Locality: Přerov
Sequence Date Value
1 2019-04-08 18:00 121.4
2 2019-04-19 17:00 134.5
3 2019-04-20 17:00 123.7
4 2019-05-25 17:00 122.1
5 2019-06-14 21:00 136.2
6 2019-06-15 17:00 127.2
7 2019-06-18 17:00 133.9
8 2019-06-26 17:00 120.8
9 2019-06-27 15:00 122.1
10 2019-06-30 16:00 120.7
11 2019-07-01 14:00 125.6
12 2019-07-06 17:00 126.6
13 2019-07-20 17:00 133.5
14 2019-07-25 18:00 120.3
15 2019-07-26 16:00 130.3
16 2019-08-29 16:00 123.0
17 2019-08-30 17:00 125.4
18 2019-08-31 17:00 127.6
19 2019-09-01 15:00 120.2