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

Updated: 2025-06-11 01:27 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
2025-06-09 23:00 - 02:00 CEST 2A 8.7 10.7 62.1
2025-06-10 00:00 - 03:00 CEST 2A 7.1 13.1 59.7
2025-06-10 01:00 - 04:00 CEST 1B 7.0 13.0 53.5
2025-06-10 02:00 - 05:00 CEST 1B 8.2 11.6 53.1
2025-06-10 03:00 - 06:00 CEST 1B 12.6 11.4 48.5
2025-06-10 04:00 - 07:00 CEST 1B 19.1 13.0 41.2
2025-06-10 05:00 - 08:00 CEST 1B 25.1 18.1 33.9
2025-06-10 06:00 - 09:00 CEST 1B 23.9 21.8 33.8
2025-06-10 07:00 - 10:00 CEST 2A 19.8 23.5 44.7
2025-06-10 08:00 - 11:00 CEST 2A 13.4 24.8 52.4
2025-06-10 09:00 - 12:00 CEST 2A 13.0 22.5 61.2
2025-06-10 10:00 - 13:00 CEST 2A 12.0 20.7 67.1
2025-06-10 11:00 - 14:00 CEST 2A 12.6 15.3 74.0
2025-06-10 12:00 - 15:00 CEST 2A 11.3 13.0 82.7
2025-06-10 13:00 - 16:00 CEST 2A 10.5 13.8 90.3
2025-06-10 14:00 - 17:00 CEST 2B 10.5 14.8 97.4
2025-06-10 15:00 - 18:00 CEST 2B 11.8 17.5 102.5
2025-06-10 16:00 - 19:00 CEST 2B 13.2 19.1 106.4
2025-06-10 17:00 - 20:00 CEST 2B 14.6 21.4 106.0
2025-06-10 18:00 - 21:00 CEST 2B 13.5 25.5 103.9
2025-06-10 19:00 - 22:00 CEST 2B 15.4 28.9 100.8
2025-06-10 20:00 - 23:00 CEST 2B 13.2 29.6 97.2
2025-06-10 21:00 - 00:00 CEST 2B 11.6 27.9 86.3
2025-06-10 22:00 - 01:00 CEST 2A 7.3 26.5 74.6

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