Updated: 2025-10-03 22:27 CEST

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Locality

Basic data		Locality photo
Locality:	Ondrejov
Code:	SONRA
Type of measuring programme:	Automated measuring program
Locality owner:	Czech Hydrometeorological Institute
Classification
Abbreviation:	B/R/N-REG
Localization
Coordinates:	49° 54´ 48.647" North latitude 14° 46´ 57.451" East longitude
Altitude:	514 m

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Actual measured level of air pollution

Actual unverified data

Date and time	SO₂		NO₂	CO	O₃		PM₁₀		PM₂.₅
	1h	24h average	1h	8h average	1h	8h average	1h	24h average	1h
	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³
2025-10-02 22:00 - 23:00 CEST					56.3	52.6
2025-10-02 23:00 - 00:00 CEST					52.3	52.5
2025-10-03 00:00 - 01:00 CEST					53.9	51.8
2025-10-03 01:00 - 02:00 CEST					43.9	50.4
2025-10-03 02:00 - 03:00 CEST					44.7	50.2
2025-10-03 03:00 - 04:00 CEST					46.3	49.9
2025-10-03 04:00 - 05:00 CEST						49.8
2025-10-03 05:00 - 06:00 CEST					52.1	49.9
2025-10-03 06:00 - 07:00 CEST					54.3	49.6
2025-10-03 07:00 - 08:00 CEST					48.5	49.1
2025-10-03 08:00 - 09:00 CEST					31.1	45.8
2025-10-03 09:00 - 10:00 CEST					41.3	45.5
2025-10-03 10:00 - 11:00 CEST					47.7	45.9
2025-10-03 11:00 - 12:00 CEST					56.1	47.3
2025-10-03 12:00 - 13:00 CEST					54.7	48.2
2025-10-03 13:00 - 14:00 CEST					64.6	49.8
2025-10-03 14:00 - 15:00 CEST					69.2	51.7
2025-10-03 15:00 - 16:00 CEST					65.6	53.8
2025-10-03 16:00 - 17:00 CEST					69.2	58.5
2025-10-03 17:00 - 18:00 CEST					65.8	61.6
2025-10-03 18:00 - 19:00 CEST					67.8	64.1
2025-10-03 19:00 - 20:00 CEST					72.0	66.1
2025-10-03 20:00 - 21:00 CEST					66.2	67.6
2025-10-03 21:00 - 22:00 CEST					67.4	67.9

Legend

Color	Description
	Component is not measured
	Incomplete data
	Limit exceeded

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Map of station position

Map is on page with detailed information about locality