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

Updated: 2025-04-05 03:25 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
2025-04-04 01:00 - 04:00 CEST 2A 15.3 15.0 72.0
2025-04-04 02:00 - 05:00 CEST 2A 15.9 15.8 65.9
2025-04-04 03:00 - 06:00 CEST 2A 20.0 18.7 62.9
2025-04-04 04:00 - 07:00 CEST 2A 27.2 22.4 60.8
2025-04-04 05:00 - 08:00 CEST 2A 33.2 27.5 60.7
2025-04-04 06:00 - 09:00 CEST 2B 36.3 30.1 62.7
2025-04-04 07:00 - 10:00 CEST 2A 35.7 38.0 16.4
2025-04-04 08:00 - 11:00 CEST 2A 36.8 44.0 29.2
2025-04-04 09:00 - 12:00 CEST 2B 33.2 46.0 44.1
2025-04-04 10:00 - 13:00 CEST 2B 25.2 38.6 76.9
2025-04-04 11:00 - 14:00 CEST 2B 15.3 28.1 85.5
2025-04-04 12:00 - 15:00 CEST 2B 10.2 17.5 95.0
2025-04-04 13:00 - 16:00 CEST 2A 8.9 9.9 100.4
2025-04-04 14:00 - 17:00 CEST 2A 8.4 7.3 103.7
2025-04-04 15:00 - 18:00 CEST 2B 11.0 9.7 105.6
2025-04-04 16:00 - 19:00 CEST 2B 15.0 11.9 105.4
2025-04-04 17:00 - 20:00 CEST 2B 22.7 12.2 101.4
2025-04-04 18:00 - 21:00 CEST 2B 37.8 11.7 91.6
2025-04-04 19:00 - 22:00 CEST 2B 49.8 12.4 79.4
2025-04-04 20:00 - 23:00 CEST 2B 55.3 15.0 71.2
2025-04-04 21:00 - 00:00 CEST 2B 46.8 21.8 69.5
2025-04-04 22:00 - 01:00 CEST 2B 37.2 24.6 70.2
2025-04-04 23:00 - 02:00 CEST 2A 29.7 25.7 67.4
2025-04-05 00:00 - 03:00 CEST 2A 25.8 20.2 57.5

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