Updated: 2025-09-08 19:26 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
2025-09-07 17:00 - 20:00 CEST	2A			2.6	77.5
2025-09-07 18:00 - 21:00 CEST	2A			2.5	79.9
2025-09-07 19:00 - 22:00 CEST	2A			3.3	86.7
2025-09-07 20:00 - 23:00 CEST	2A			2.5	88.8
2025-09-07 21:00 - 00:00 CEST	2A			2.4	86.3
2025-09-07 22:00 - 01:00 CEST	2A			1.6	82.7
2025-09-07 23:00 - 02:00 CEST	2A			2.1	79.6
2025-09-08 00:00 - 03:00 CEST	1B			2.4	77.0
2025-09-08 01:00 - 04:00 CEST	1B			4.6	73.7
2025-09-08 02:00 - 05:00 CEST	1B			5.1	71.2
2025-09-08 03:00 - 06:00 CEST	1B			4.7	59.2
2025-09-08 04:00 - 07:00 CEST	1B			3.1	49.6
2025-09-08 05:00 - 08:00 CEST	1B			2.1	47.3
2025-09-08 06:00 - 09:00 CEST	1B			1.7	48.3
2025-09-08 07:00 - 10:00 CEST	1B			1.0	52.7
2025-09-08 08:00 - 11:00 CEST	1B			2.0	60.2
2025-09-08 09:00 - 12:00 CEST	1B			4.7	68.3
2025-09-08 10:00 - 13:00 CEST	2A			7.4	76.1
2025-09-08 11:00 - 14:00 CEST	2A			9.2	83.3
2025-09-08 12:00 - 15:00 CEST	2A			10.5	86.1
2025-09-08 13:00 - 16:00 CEST	2A			9.7	88.1
2025-09-08 14:00 - 17:00 CEST	2A			8.4	89.3
2025-09-08 15:00 - 18:00 CEST	2A			5.1	90.8
2025-09-08 16:00 - 19:00 CEST	2A			4.0	90.7

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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