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

Updated: 2026-04-04 18:25 CEST


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
2026-04-03 16:00 - 19:00 CEST 2A 9.4 11.5 77.7
2026-04-03 17:00 - 20:00 CEST 2A 14.3 10.4 75.0
2026-04-03 18:00 - 21:00 CEST 2A 21.4 14.0 71.4
2026-04-03 19:00 - 22:00 CEST 2A 32.7 15.2 63.9
2026-04-03 20:00 - 23:00 CEST 2A 38.6 17.2 56.3
2026-04-03 21:00 - 00:00 CEST 2A 40.0 16.3 49.2
2026-04-03 22:00 - 01:00 CEST 2A 35.9 19.8 47.2
2026-04-03 23:00 - 02:00 CEST 2A 29.6 25.5 47.3
2026-04-04 00:00 - 03:00 CEST 2A 23.1 28.4 52.3
2026-04-04 01:00 - 04:00 CEST 2A 19.8 29.4 56.2
2026-04-04 02:00 - 05:00 CEST 2A 20.1 25.5 58.4
2026-04-04 03:00 - 06:00 CEST 2A 22.3 25.8 58.9
2026-04-04 04:00 - 07:00 CEST 2A 26.5 26.0 58.4
2026-04-04 05:00 - 08:00 CEST 2A 32.4 30.0 56.9
2026-04-04 06:00 - 09:00 CEST 2A 33.5 28.8 56.7
2026-04-04 07:00 - 10:00 CEST 2A 28.3 28.9 57.1
2026-04-04 08:00 - 11:00 CEST 2A 20.2 23.6 58.7
2026-04-04 09:00 - 12:00 CEST 2A 12.2 22.1 60.1
2026-04-04 10:00 - 13:00 CEST 2A 10.7 21.4 61.5
2026-04-04 11:00 - 14:00 CEST 2A 9.6 21.7 63.1
2026-04-04 12:00 - 15:00 CEST 2A 8.5 17.6 67.7
2026-04-04 13:00 - 16:00 CEST 2A 7.3 11.9 73.9
2026-04-04 14:00 - 17:00 CEST 2A 6.4 8.1 78.5
2026-04-04 15:00 - 18:00 CEST 2A 7.5 6.7 80.4

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