Updated: 2025-09-08 19:26 CEST

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Basic data
Locality:	Trnava, Kollarova
Code:	7TRKA
Type of measuring programme:	Automated measuring program
Locality owner:	Slovak Hydrometeorological Institute
Classification
Abbreviation:	T/U/-
Localization
Coordinates:	48° 22´ 16.006" North latitude 17° 35´ 5.997" East longitude
Altitude:	152 m

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Actual measured level of air pollution

Actual unverified data

Date and time	Air quality	SO₂	NO₂	PM₁₀	O₃		PM₂.₅
		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
2025-09-07 17:00 - 20:00 CEST	1A		17.9	12.0
2025-09-07 18:00 - 21:00 CEST	1A		36.0	13.0
2025-09-07 19:00 - 22:00 CEST	1A		36.4	13.7
2025-09-07 20:00 - 23:00 CEST	1A		28.0	12.3
2025-09-07 21:00 - 00:00 CEST	1A		15.0	11.7
2025-09-07 22:00 - 01:00 CEST	1A		9.7	10.7
2025-09-07 23:00 - 02:00 CEST	1A		7.3	11.7
2025-09-08 00:00 - 03:00 CEST	1A		7.3	11.3
2025-09-08 01:00 - 04:00 CEST	1A		8.0	11.3
2025-09-08 02:00 - 05:00 CEST	1A		9.0	11.0
2025-09-08 03:00 - 06:00 CEST	1A		13.3	11.3
2025-09-08 04:00 - 07:00 CEST	1A		22.7	12.3
2025-09-08 05:00 - 08:00 CEST	1A		32.3	15.3
2025-09-08 06:00 - 09:00 CEST	1B		35.3	18.3
2025-09-08 07:00 - 10:00 CEST	1B		33.0	19.3
2025-09-08 08:00 - 11:00 CEST	1B		29.7	18.0
2025-09-08 09:00 - 12:00 CEST	1A		27.3	15.3
2025-09-08 10:00 - 13:00 CEST	1A		29.3	14.3
2025-09-08 11:00 - 14:00 CEST	1A		25.7	12.7
2025-09-08 12:00 - 15:00 CEST	1A		23.3	12.3
2025-09-08 13:00 - 16:00 CEST	1A		16.3	13.7
2025-09-08 14:00 - 17:00 CEST	1A		16.7	15.0
2025-09-08 15:00 - 18:00 CEST	1A		16.7	16.3
2025-09-08 16:00 - 19:00 CEST	1A		23.3	14.7

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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