Updated: 2025-07-04 16:26 CEST

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Basic data
Locality:	Chopok, EMEP
Code:	8CHOA
Type of measuring programme:	Automated measuring program
Locality owner:	Slovak Hydrometeorological Institute
Classification
Abbreviation:	B/R/-
Localization
Coordinates:	48° 56´ 38.003" North latitude 19° 35´ 32.000" East longitude
Altitude:	2008 m

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Actual measured level of air pollution

Actual unverified data

Date and time	Air quality	SO₂	NO₂	PM₁₀	O₃
		3h average	3h average	3h average	3h average
		µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³
2025-07-03 14:00 - 17:00 CEST	2B		1.3		116.3
2025-07-03 15:00 - 18:00 CEST	2B		1.3		121.0
2025-07-03 16:00 - 19:00 CEST	2B		1.3		124.1
2025-07-03 17:00 - 20:00 CEST	2B		1.0		123.9
2025-07-03 18:00 - 21:00 CEST	2B		1.0		123.9
2025-07-03 19:00 - 22:00 CEST	2B		1.3		130.7
2025-07-03 20:00 - 23:00 CEST	2B		2.0		141.3
2025-07-03 21:00 - 00:00 CEST	2B		2.3		146.3
2025-07-03 22:00 - 01:00 CEST	2B		2.3		145.7
2025-07-03 23:00 - 02:00 CEST	2B		2.0		143.0
2025-07-04 00:00 - 03:00 CEST	2B		1.7		143.3
2025-07-04 01:00 - 04:00 CEST	2B		1.7		144.0
2025-07-04 02:00 - 05:00 CEST	2B		1.7		140.3
2025-07-04 03:00 - 06:00 CEST	2B		2.0		138.0
2025-07-04 04:00 - 07:00 CEST	2B		2.0		134.3
2025-07-04 05:00 - 08:00 CEST	2B		2.0		132.7
2025-07-04 06:00 - 09:00 CEST	2B		2.0		129.7
2025-07-04 07:00 - 10:00 CEST	2B		2.0		127.3
2025-07-04 08:00 - 11:00 CEST	2B		2.3		125.7
2025-07-04 09:00 - 12:00 CEST	2B		2.7		124.3
2025-07-04 10:00 - 13:00 CEST	2B		3.0		120.0
2025-07-04 11:00 - 14:00 CEST	2B		2.7		109.3
2025-07-04 12:00 - 15:00 CEST	2B		2.0		102.7
2025-07-04 13:00 - 16:00 CEST	2A		1.7		96.7

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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