Updated: 2025-12-16 22:26 CET

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Basic data
Locality:	Stara Lesna, AV SAV, EMEP
Code:	5SLEA
Type of measuring programme:	Automated measuring program
Locality owner:	Slovak Hydrometeorological Institute
Classification
Abbreviation:	B/R/-
Localization
Coordinates:	49° 9´ 10.003" North latitude 20° 17´ 28.000" East longitude
Altitude:	808 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
2025-12-15 20:00 - 23:00 CET	1A		3.7	4.3	31.3
2025-12-15 21:00 - 00:00 CET	1A		3.0	5.0	32.0
2025-12-15 22:00 - 01:00 CET	1A		3.0	6.0	32.0
2025-12-15 23:00 - 02:00 CET	1A		3.0	6.0	31.6
2025-12-16 00:00 - 03:00 CET	1A		2.7	6.0	33.7
2025-12-16 01:00 - 04:00 CET	1A		2.4	5.6	35.4
2025-12-16 02:00 - 05:00 CET	1A		2.0	6.0	35.7
2025-12-16 03:00 - 06:00 CET	1A		2.0	5.6	35.7
2025-12-16 04:00 - 07:00 CET	1A		2.3	5.3	35.0
2025-12-16 05:00 - 08:00 CET	1A		3.3	4.3	33.7
2025-12-16 06:00 - 09:00 CET	1A		4.1	3.9	32.7
2025-12-16 07:00 - 10:00 CET	1A		5.6	3.6	31.7
2025-12-16 08:00 - 11:00 CET	1A		6.4	4.0	31.3
2025-12-16 09:00 - 12:00 CET	1A		6.7	3.3	31.0
2025-12-16 10:00 - 13:00 CET	1A		7.0	4.0	30.3
2025-12-16 11:00 - 14:00 CET	1A		7.3	5.3	29.3
2025-12-16 12:00 - 15:00 CET	1A		7.7	7.0	28.7
2025-12-16 13:00 - 16:00 CET	1A		8.0	7.7	25.3
2025-12-16 14:00 - 17:00 CET	1A		11.7	7.0	20.3
2025-12-16 15:00 - 18:00 CET	1A		12.3	7.3	16.3
2025-12-16 16:00 - 19:00 CET	1A		13.0	7.3	17.3
2025-12-16 17:00 - 20:00 CET	1A		10.0	8.0	20.3
2025-12-16 18:00 - 21:00 CET	1A		9.4	7.4	22.7
2025-12-16 19:00 - 22:00 CET					26.0

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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