Updated: 2025-12-05 05:27 CET

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Locality

Basic data		Locality photo
Locality:	Sneznik
Code:	USNZA
Type of measuring programme:	Automated measuring program
Locality owner:	Czech Hydrometeorological Institute
Classification
Abbreviation:	B/R/N-REG
Localization
Coordinates:	50° 47´ 21.998" North latitude 14° 5´ 12.475" East longitude
Altitude:	590 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
2025-12-04 05:00 - 06:00 CET	1.3	1.9	10.7		31.9	26.7
2025-12-04 06:00 - 07:00 CET	1.3	1.7	9.9		32.9	28.6
2025-12-04 07:00 - 08:00 CET	2.7	1.8	9.0		33.7	29.3
2025-12-04 08:00 - 09:00 CET	1.3	1.8	7.7		35.3	30.7
2025-12-04 09:00 - 10:00 CET	1.3	1.8	8.0		35.3	31.9
2025-12-04 10:00 - 11:00 CET	1.3	1.8	6.9		38.5	33.4
2025-12-04 11:00 - 12:00 CET	1.3	1.8	5.0		41.5	35.0
2025-12-04 12:00 - 13:00 CET	1.3	1.8	6.3		39.5	36.1
2025-12-04 13:00 - 14:00 CET		1.8			36.7	36.7
2025-12-04 14:00 - 15:00 CET	1.3	1.8	7.8		37.1	37.2
2025-12-04 15:00 - 16:00 CET	1.3	1.8	9.6		34.1	37.2
2025-12-04 16:00 - 17:00 CET	1.3	1.8	11.9		29.7	36.5
2025-12-04 17:00 - 18:00 CET	1.3	1.8	11.7		29.1	35.8
2025-12-04 18:00 - 19:00 CET	1.3	1.8	10.7		30.3	34.8
2025-12-04 19:00 - 20:00 CET	1.3	1.8	10.3		31.1	33.5
2025-12-04 20:00 - 21:00 CET	1.3	1.8	9.0		33.5	32.7
2025-12-04 21:00 - 22:00 CET	1.3	1.7	10.5		31.5	32.0
2025-12-04 22:00 - 23:00 CET	2.7	1.7	11.1		33.1	31.5
2025-12-04 23:00 - 00:00 CET	2.9	1.8	10.5			31.2
2025-12-05 00:00 - 01:00 CET	3.2	1.9	9.4		33.9	31.8
2025-12-05 01:00 - 02:00 CET	1.3	1.8	8.8		31.3	32.1
2025-12-05 02:00 - 03:00 CET	1.3	1.7	7.3		32.7	32.4
2025-12-05 03:00 - 04:00 CET	1.3	1.6	5.0		43.1	34.2
2025-12-05 04:00 - 05:00 CET	1.3	1.6	4.6		45.7	35.9

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