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

Updated: 2025-07-10 15:25 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
2025-07-09 13:00 - 16:00 CEST 2A 8.2 11.4 65.0
2025-07-09 14:00 - 17:00 CEST 2A 7.3 13.0 67.3
2025-07-09 15:00 - 18:00 CEST 2A 8.4 13.8 68.3
2025-07-09 16:00 - 19:00 CEST 2A 9.8 12.0 69.3
2025-07-09 17:00 - 20:00 CEST 2A 11.1 8.0 68.6
2025-07-09 18:00 - 21:00 CEST 2A 11.5 5.1 67.7
2025-07-09 19:00 - 22:00 CEST 1B 8.1 3.4 65.9
2025-07-09 20:00 - 23:00 CEST 1B 5.5 3.6 63.4
2025-07-09 21:00 - 00:00 CEST 1B 5.2 5.4 61.3
2025-07-09 22:00 - 01:00 CEST 1B 5.6 6.6 59.6
2025-07-09 23:00 - 02:00 CEST 1B 6.1 7.2 59.4
2025-07-10 00:00 - 03:00 CEST 1B 7.9 6.7 58.9
2025-07-10 01:00 - 04:00 CEST 1B 7.4 6.0 56.5
2025-07-10 02:00 - 05:00 CEST 1B 7.1 7.0 56.0
2025-07-10 03:00 - 06:00 CEST 1B 5.9 7.7 55.1
2025-07-10 04:00 - 07:00 CEST 1B 6.2 8.4 55.7
2025-07-10 05:00 - 08:00 CEST 1B 7.3 6.1 55.5
2025-07-10 06:00 - 09:00 CEST 1B 9.2 10.4 56.2
2025-07-10 07:00 - 10:00 CEST 2A 9.1 14.5 56.8
2025-07-10 08:00 - 11:00 CEST 2A 8.0 16.7 60.2
2025-07-10 09:00 - 12:00 CEST 2A 5.5 13.8 64.1
2025-07-10 10:00 - 13:00 CEST 2A 4.7 11.8 68.4
2025-07-10 11:00 - 14:00 CEST 2A 4.6 13.0 71.7
2025-07-10 12:00 - 15:00 CEST 2A 4.4 11.8 74.4

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