Updated: 2025-08-02 12:25 CEST

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Basic data
Locality:	Ostrava-Nova Ves-areal OVak
Code:	TONVA
Type of measuring programme:	Automated measuring program
Locality owner:	ZU, MSK
Classification
Abbreviation:	T/U/IAN
Localization
Coordinates:	49° 49´ 26.693" North latitude 18° 14´ 5.796" East longitude
Altitude:	210 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		PM₂.₅
		3h average	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		µg∙m⁻³
2025-08-01 10:00 - 13:00 CEST	1A		22.2	11.7						5.3
2025-08-01 11:00 - 14:00 CEST	1A		24.0	11.3						5.3
2025-08-01 12:00 - 15:00 CEST	1A		26.1	10.7						5.3
2025-08-01 13:00 - 16:00 CEST	1A		25.6	9.7						5.3
2025-08-01 14:00 - 17:00 CEST	1A		21.5	9.0						5.3
2025-08-01 15:00 - 18:00 CEST	1A		16.8	9.0						5.0
2025-08-01 16:00 - 19:00 CEST	1A		17.5	8.3						4.7
2025-08-01 17:00 - 20:00 CEST	1A		23.5	8.0						4.3
2025-08-01 18:00 - 21:00 CEST	1A		27.2	8.0						4.0
2025-08-01 19:00 - 22:00 CEST	1A		27.9	8.3						4.0
2025-08-01 20:00 - 23:00 CEST	1A		26.6	9.3						4.0
2025-08-01 21:00 - 00:00 CEST	1A		24.8	9.0						4.0
2025-08-01 22:00 - 01:00 CEST	1A		22.6	9.3						4.0
2025-08-01 23:00 - 02:00 CEST	1A		18.9	9.0						4.0
2025-08-02 00:00 - 03:00 CEST	1A		14.5	9.3						4.3
2025-08-02 01:00 - 04:00 CEST	1A		10.0	10.0						4.7
2025-08-02 02:00 - 05:00 CEST	1A		7.7	11.3						5.3
2025-08-02 03:00 - 06:00 CEST	1A		9.8	13.7						6.0
2025-08-02 04:00 - 07:00 CEST	1A		13.0	14.7						6.3
2025-08-02 05:00 - 08:00 CEST	1A		13.3	13.0						5.7
2025-08-02 06:00 - 09:00 CEST	1A		13.6	10.0						4.7
2025-08-02 07:00 - 10:00 CEST	1A		14.1	7.7						4.0
2025-08-02 08:00 - 11:00 CEST	1A		14.6	7.0						3.7
2025-08-02 09:00 - 12:00 CEST	1A		13.2	6.0						3.3

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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