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

Updated: 2026-06-15 07:27 CEST


Basic data Locality photo
Locality: Steti
Code: USTEA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: B/U/R
Localization
Coordinates: 50° 27´ 14.958" North latitude 14° 22´ 26.986" East longitude
Altitude: 155 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 PM₂.₅
3h average 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 µg∙m⁻³
2026-06-14 05:00 - 08:00 CEST 1B 1.3 9.9 57.5 4.8
2026-06-14 06:00 - 09:00 CEST 1B 1.3 8.5 61.2 3.9
2026-06-14 07:00 - 10:00 CEST 1B 1.3 7.9 62.3 3.4
2026-06-14 08:00 - 11:00 CEST 1B 2.2 7.1 63.6 3.1
2026-06-14 09:00 - 12:00 CEST 1B 2.2 7.3 65.3 3.3
2026-06-14 10:00 - 13:00 CEST 1B 2.2 7.4 67.3 3.6
2026-06-14 11:00 - 14:00 CEST 1B 1.3 8.0 69.1 3.1
2026-06-14 12:00 - 15:00 CEST 1B 1.3 7.8 69.3 3.0
2026-06-14 13:00 - 16:00 CEST 2A 3.4 8.5 70.5 2.7
2026-06-14 14:00 - 17:00 CEST 2A 4.8 9.3 71.3 3.4
2026-06-14 15:00 - 18:00 CEST 2A 4.9 9.1 71.7 3.3
2026-06-14 16:00 - 19:00 CEST 2A 5.3 8.0 70.9 2.6
2026-06-14 17:00 - 20:00 CEST 2A 5.7 7.0 69.7 2.7
2026-06-14 18:00 - 21:00 CEST 2A 6.0 7.3 69.0 2.8
2026-06-14 19:00 - 22:00 CEST 1B 5.6 7.3 68.1 3.5
2026-06-14 20:00 - 23:00 CEST 1B 5.5 7.3 65.0 3.7
2026-06-14 21:00 - 00:00 CEST 1B 5.4 6.8 63.4 3.0
2026-06-14 22:00 - 01:00 CEST 1B 5.9 6.3 61.2 2.3
2026-06-14 23:00 - 02:00 CEST 1B 6.2 6.0 60.2 2.1
2026-06-15 00:00 - 03:00 CEST 1B 6.2 6.0 58.4 2.6
2026-06-15 01:00 - 04:00 CEST 1B 6.1 6.1 55.0 3.2
2026-06-15 02:00 - 05:00 CEST 1B 5.7 6.0 53.9 3.2
2026-06-15 03:00 - 06:00 CEST 1B 5.6 6.5 49.6 3.5
2026-06-15 04:00 - 07:00 CEST 1B 5.3 7.2 46.0 3.9

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