Updated: 2025-12-14 18:26 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
2025-12-13 18:00 - 19:00 CET			16.5		16.4	35.1
2025-12-13 19:00 - 20:00 CET			28.1		2.6	31.8
2025-12-13 20:00 - 21:00 CET			29.1		2.2	28.0
2025-12-13 21:00 - 22:00 CET			26.4		2.4	22.8
2025-12-13 22:00 - 23:00 CET			24.7		2.2	17.3
2025-12-13 23:00 - 00:00 CET			23.7			13.9
2025-12-14 00:00 - 01:00 CET			22.2		2.4	9.0
2025-12-14 01:00 - 02:00 CET			22.6		4.0	4.6
2025-12-14 02:00 - 03:00 CET			22.6		6.8	3.2
2025-12-14 03:00 - 04:00 CET					7.6	3.9
2025-12-14 04:00 - 05:00 CET			19.1		3.4	4.1
2025-12-14 05:00 - 06:00 CET			19.5		7.6	4.9
2025-12-14 06:00 - 07:00 CET			17.6		5.2	5.3
2025-12-14 07:00 - 08:00 CET			18.2		2.4	4.9
2025-12-14 08:00 - 09:00 CET			16.6		2.2	4.9
2025-12-14 09:00 - 10:00 CET			12.1		5.4	5.1
2025-12-14 10:00 - 11:00 CET			9.9		12.4	5.8
2025-12-14 11:00 - 12:00 CET			9.4		25.1	8.0
2025-12-14 12:00 - 13:00 CET			9.4		31.1	11.4
2025-12-14 13:00 - 14:00 CET			7.1		31.5	14.4
2025-12-14 14:00 - 15:00 CET			8.0		27.3	17.2
2025-12-14 15:00 - 16:00 CET			16.8		20.1	19.4
2025-12-14 16:00 - 17:00 CET			22.0		13.2	20.8
2025-12-14 17:00 - 18:00 CET			18.2		14.2	21.9

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