Updated: 2026-04-04 18:25 CEST

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Basic data		Locality photo
Locality:	Hojna Voda
Code:	CHVOA
Type of measuring programme:	Automated measuring program
Locality owner:	Czech Hydrometeorological Institute
Classification
Abbreviation:	B/R/N-REG
Localization
Coordinates:	48° 43´ 27.111" North latitude 14° 43´ 24.175" East longitude
Altitude:	818 m

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Actual measured level of air pollution

Actual unverified data

Date and time	Air quality	SO₂	NO₂	PM₁₀	O₃		PM₁₀ - from model	O₃ - from model
		3h average	3h average	3h average	3h average		3h average	3h average
		µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³		µg∙m⁻³	µg∙m⁻³
2026-04-03 16:00 - 19:00 CEST	2A			13.7	85.7
2026-04-03 17:00 - 20:00 CEST	2A			14.4	84.9
2026-04-03 18:00 - 21:00 CEST	2A			12.4	82.9
2026-04-03 19:00 - 22:00 CEST	2A			8.7	80.7
2026-04-03 20:00 - 23:00 CEST	2A			7.2	76.9
2026-04-03 21:00 - 00:00 CEST	2A			10.0	76.3
2026-04-03 22:00 - 01:00 CEST	2A			13.0	77.3
2026-04-03 23:00 - 02:00 CEST	2A			14.7	80.1
2026-04-04 00:00 - 03:00 CEST	2A			11.8	80.0
2026-04-04 01:00 - 04:00 CEST	2A			7.9	78.4
2026-04-04 02:00 - 05:00 CEST	2A			7.1	77.2
2026-04-04 03:00 - 06:00 CEST	2A			6.8	72.7
2026-04-04 04:00 - 07:00 CEST	2A			8.1	69.7
2026-04-04 05:00 - 08:00 CEST	2A			9.2	68.1
2026-04-04 06:00 - 09:00 CEST	2A			12.4	65.7
2026-04-04 07:00 - 10:00 CEST	2A			14.8	63.1
2026-04-04 08:00 - 11:00 CEST	2A			17.1	62.3
2026-04-04 09:00 - 12:00 CEST	2A			15.3	62.3
2026-04-04 10:00 - 13:00 CEST	1B			11.9	62.7
2026-04-04 11:00 - 14:00 CEST	1B			7.1	61.6
2026-04-04 12:00 - 15:00 CEST	1B			5.3	60.0
2026-04-04 13:00 - 16:00 CEST	1B			4.8	58.6
2026-04-04 14:00 - 17:00 CEST	1B			4.7	57.9
2026-04-04 15:00 - 18:00 CEST	1B			4.6	57.0

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Legend

Level	Index range	Air quality
1A	≥ 0.00 and < 0.34	very good to good
1B	≥ 0.34 and < 0.67
2A	≥ 0.67 and < 1.00	acceptable
2B	≥ 1.00 and < 1.50
3A	≥ 1.50 and < 2.00	aggravated to bad
3B	≥ 2.00
	Component is not measured, index not determined
	Incomplete data

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Map of station position

Map is on page with detailed information about locality