Updated: 2025-12-14 23:27 CET

---

Locality

Basic data		Locality photo
Locality:	Hradec Kralove-observator
Code:	HHKOK
Type of measuring programme:	Combination measuring program
Locality owner:	Czech Hydrometeorological Institute
Classification
Abbreviation:	B/S/R
Localization
Coordinates:	50° 10´ 39.473" North latitude 15° 50´ 18.205" East longitude
Altitude:	276 m

---

Actual measured level of air pollution

Actual unverified data

Date and time	SO₂		NO₂	CO	O₃		PM₁₀		PM₂.₅
	1h	24h average	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
2025-12-13 23:00 - 00:00 CET					9.8	11.9
2025-12-14 00:00 - 01:00 CET					8.2	11.0
2025-12-14 01:00 - 02:00 CET					8.0	10.0
2025-12-14 02:00 - 03:00 CET						9.8
2025-12-14 03:00 - 04:00 CET					13.0	10.2
2025-12-14 04:00 - 05:00 CET					16.0	11.1
2025-12-14 05:00 - 06:00 CET					15.0	11.7
2025-12-14 06:00 - 07:00 CET					15.2	12.2
2025-12-14 07:00 - 08:00 CET					17.2	13.2
2025-12-14 08:00 - 09:00 CET					17.2	14.5
2025-12-14 09:00 - 10:00 CET					18.4	16.0
2025-12-14 10:00 - 11:00 CET					21.3	16.7
2025-12-14 11:00 - 12:00 CET					20.3	17.6
2025-12-14 12:00 - 13:00 CET					18.4	17.9
2025-12-14 13:00 - 14:00 CET					18.2	18.3
2025-12-14 14:00 - 15:00 CET					18.6	18.7
2025-12-14 15:00 - 16:00 CET					19.6	19.0
2025-12-14 16:00 - 17:00 CET					19.4	19.3
2025-12-14 17:00 - 18:00 CET					14.4	18.8
2025-12-14 18:00 - 19:00 CET					9.0	17.2
2025-12-14 19:00 - 20:00 CET					9.0	15.8
2025-12-14 20:00 - 21:00 CET					13.8	15.2
2025-12-14 21:00 - 22:00 CET					14.0	14.7
2025-12-14 22:00 - 23:00 CET					21.7	15.1

Legend

Color	Description
	Component is not measured
	Incomplete data
	Limit exceeded

---

Map of station position

Map is on page with detailed information about locality