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Information about air quality in the Czech Republic
Current overview of data from automated stations (non-verified data)

Updated: 2025-12-14 19:25 CET


Basic data Locality photo
Locality: Usti n.L.-mesto
Code: UULMA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: B/U/RC
Localization
Coordinates: 50° 39´ 39.941" North latitude 14° 2´ 35.027" East longitude
Altitude: 147 m

Actual measured level of air pollution

Actual unverified data

Date and time Air quality SO₂ NO₂ PM₁₀ O₃ PM₁₀ - from model O₃ - from model
3h average 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 µg∙m⁻³
2025-12-13 17:00 - 20:00 CET 1B 24.2 19.7 1.8
2025-12-13 18:00 - 21:00 CET 1B 24.9 21.5 2.2
2025-12-13 19:00 - 22:00 CET 1A 25.5 19.0 2.8
2025-12-13 20:00 - 23:00 CET 1A 25.2 14.3 2.8
2025-12-13 21:00 - 00:00 CET 1A 24.6 8.7 2.6
2025-12-13 22:00 - 01:00 CET 1A 24.2 8.3 2.2
2025-12-13 23:00 - 02:00 CET 1A 22.2 10.7 2.3
2025-12-14 00:00 - 03:00 CET 1A 20.5 12.7 2.4
2025-12-14 01:00 - 04:00 CET 1A 20.1 15.6 2.2
2025-12-14 02:00 - 05:00 CET 1A 19.2 16.4 2.2
2025-12-14 03:00 - 06:00 CET 1A 18.2 16.6 2.5
2025-12-14 04:00 - 07:00 CET 1A 17.3 17.0 3.4
2025-12-14 05:00 - 08:00 CET 1B 16.7 23.1 3.9
2025-12-14 06:00 - 09:00 CET 1B 16.5 28.2 4.4
2025-12-14 07:00 - 10:00 CET 1B 15.9 32.6 6.6
2025-12-14 08:00 - 11:00 CET 1B 15.8 28.1 12.4
2025-12-14 09:00 - 12:00 CET 1A 14.9 22.4 19.5
2025-12-14 10:00 - 13:00 CET 1A 13.9 13.2 24.6
2025-12-14 11:00 - 14:00 CET 1A 13.9 8.1 25.7
2025-12-14 12:00 - 15:00 CET 1A 14.2 8.2 24.7
2025-12-14 13:00 - 16:00 CET 1A 15.2 8.3 21.9
2025-12-14 14:00 - 17:00 CET 1A 14.6 7.7 17.4
2025-12-14 15:00 - 18:00 CET 1A 14.1 6.5 15.8
2025-12-14 16:00 - 19:00 CET 1A 14.1 6.7 14.3

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


Map of station position

Map is on page with detailed information about locality