Information about air quality in the Czech Republic

Year: 2020, Others

Overview of the target ambient limit values
exceedances of O3 and AOT40

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

Updated: 2020-05-30 05:19 CEST

The values are from all active stations regardless of whether the number of valid measurement meets the criteria for calculating the aggregated data (annual average).

For the completeness and quality of data is responsible the data supplier, not the CHMI.

Completeness of data – completeness of measured data supplied to AQIS database to the day of table update (in percentage).

Purpose: Health protection
Pollutant Averaging interval Ambient limit Max. permissible number of exceedances Unit
O3 8 hours 120 25 in 3 years average µg/m3
Sequence Code Name Owner Data supplier Number of exceedances
in year 2020
Maximum concentrations
in year 2020
Completeness of data
1 BBMAA Brno-Arboretum SMBrno Statutory City of Brno 13 142.7 99.1
2 TOMHK Ostrava-Mariánské Hory ZÚ, SMOva KHS-Ostrava 8 139.8 94.3
3 MSMSA Šumperk - 5.ZŠ MŠUM ENVItech Bohemia s.r.o. 5 136.5 97.9
4 MPHRA Hranice MHRA ENVItech Bohemia s.r.o. 5 128.6 96.8
5 ZZZSA Zlín - ZŠ Kvítkova MZLl ENVItech Bohemia s.r.o. 4 128.2 94.0
6 TOROK Ostrava-Radvanice OZO ZÚ, SMOva KHS-Ostrava 2 127.5 97.7
Purpose: Protection of vegetation
Pollutant Averaging interval Ambient limit on average over 5 years Unit
O3 1.5. - 31.7. (AOT40) 18000 µg/m3.h
The limit was not exceeded at the given the period