Updated: 2025-01-21 05:25 CET

---

Locality

Basic data		Locality photo
Locality:	Chomutov
Code:	UCHMA
Type of measuring programme:	Automated measuring program
Locality owner:	Czech Hydrometeorological Institute
Classification
Abbreviation:	B/U/R
Localization
Coordinates:	50° 28´ 3.105" North latitude 13° 24´ 45.705" East longitude
Altitude:	344 m

---

Actual measured level of air pollution

Actual unverified data

Date and time	SO₂		NO₂	CO	O₃		PM₁₀		PM₂.₅
	1h	24h	1h	8h average	1h	8h average	1h	24h average	1h
	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³
2025-01-20 05:00 - 06:00 CET							33.5	40.3
2025-01-20 06:00 - 07:00 CET							25.9	40.8
2025-01-20 07:00 - 08:00 CET							32.1	41.0
2025-01-20 08:00 - 09:00 CET							31.7	41.1
2025-01-20 09:00 - 10:00 CET							39.1	41.8
2025-01-20 10:00 - 11:00 CET							22.8	41.6
2025-01-20 11:00 - 12:00 CET							20.3	41.8
2025-01-20 12:00 - 13:00 CET							26.1	42.0
2025-01-20 13:00 - 14:00 CET							14.6	40.7
2025-01-20 14:00 - 15:00 CET							35.8	40.1
2025-01-20 15:00 - 16:00 CET							31.2	40.4
2025-01-20 16:00 - 17:00 CET							28.9	40.3
2025-01-20 17:00 - 18:00 CET							28.9	39.4
2025-01-20 18:00 - 19:00 CET							37.0	39.0
2025-01-20 19:00 - 20:00 CET							36.8	38.5
2025-01-20 20:00 - 21:00 CET							34.3	36.4
2025-01-20 21:00 - 22:00 CET							25.9	34.9
2025-01-20 22:00 - 23:00 CET							14.0	33.3
2025-01-20 23:00 - 00:00 CET							29.9	31.9
2025-01-21 00:00 - 01:00 CET							34.7	31.1
2025-01-21 01:00 - 02:00 CET							19.3	29.9
2025-01-21 02:00 - 03:00 CET							18.4	28.5
2025-01-21 03:00 - 04:00 CET							22.8	27.8
2025-01-21 04:00 - 05:00 CET							22.9	27.8

Legend

Color	Description
	Component is not measured
	Incomplete data
	Limit exceeded

---

Map of station position

Map is on page with detailed information about locality