Information about air quality in the Czech Republic

Year: 2023, Others

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

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

Updated: 2024-04-26 05:47 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 2023	Maximum concentrations in year 2023	Completeness of data
1	BBMAA	Brno-Arboretum	SMBrno	Statutory City of Brno	27	154	100.0
2	TOROK	Ostrava-Radvanice OZO	ZÚ, SMOva	KHS-Ostrava	20	144	99.6
3	TOMHK	Ostrava-Mariánské Hory	ZÚ, SMOva	KHS-Ostrava	16	153	99.5
4	MSMSA	Šumperk, ZŠ Vrchlického	MŠUM	ENVItech Bohemia s.r.o.	10	140	100.0
5	TOREK	Ostrava-Radvanice ZÚ	ZÚ, SMOva	KHS-Ostrava	9	160	98.4
6	BBMLA	Brno-Lány	SMBrno	Statutory City of Brno	5	138	100.0
7	MPHRA	Hranice	MHRA	ENVItech Bohemia s.r.o.	1	127	100.0
8	ZZZSA	Zlín - ZŠ Kvítkova	MZLl	ENVItech Bohemia s.r.o.	1	121	100.0
Purpose: Protection of vegetation
Pollutant	Averaging interval	Ambient limit on average over 5 years				Unit
O₃	1.5. - 31.7. (AOT40)	18 000				µg/m³.h
The limit was not exceeded at the given the period