Updated: 2026-04-11 17:27 CEST

---

Locality

Basic data		Locality photo
Locality:	Trutnov - Tkalcovska
Code:	HTRTA
Type of measuring programme:	Automated measuring program
Locality owner:	Czech Hydrometeorological Institute
Classification
Abbreviation:	B/U/R
Localization
Coordinates:	50° 33´ 57.167" North latitude 15° 54´ 14.137" East longitude
Altitude:	432 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
2026-04-10 17:00 - 18:00 CEST							23.2	17.5
2026-04-10 18:00 - 19:00 CEST							17.2	18.0
2026-04-10 19:00 - 20:00 CEST							14.4	18.4
2026-04-10 20:00 - 21:00 CEST							19.4	19.1
2026-04-10 21:00 - 22:00 CEST							10.7	19.3
2026-04-10 22:00 - 23:00 CEST							19.3	20.0
2026-04-10 23:00 - 00:00 CEST							19.3	20.3
2026-04-11 00:00 - 01:00 CEST							16.3	20.0
2026-04-11 01:00 - 02:00 CEST							20.9	20.3
2026-04-11 02:00 - 03:00 CEST							27.3	20.7
2026-04-11 03:00 - 04:00 CEST							24.3	21.3
2026-04-11 04:00 - 05:00 CEST							15.0	21.1
2026-04-11 05:00 - 06:00 CEST							17.4	20.7
2026-04-11 06:00 - 07:00 CEST							17.4	20.1
2026-04-11 07:00 - 08:00 CEST							23.3	20.1
2026-04-11 08:00 - 09:00 CEST							23.2	20.1
2026-04-11 09:00 - 10:00 CEST							13.5	19.4
2026-04-11 10:00 - 11:00 CEST							32.3	19.3
2026-04-11 11:00 - 12:00 CEST							19.3	18.9
2026-04-11 12:00 - 13:00 CEST							20.9	18.8
2026-04-11 13:00 - 14:00 CEST							20.2	18.8
2026-04-11 14:00 - 15:00 CEST							28.1	19.5
2026-04-11 15:00 - 16:00 CEST							25.9	20.1
2026-04-11 16:00 - 17:00 CEST							24.3	20.5

Legend

Color	Description
	Component is not measured
	Incomplete data
	Limit exceeded

---

Map of station position

Map is on page with detailed information about locality