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ISKO
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: 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
2026-04-03 16:00 - 19:00 CEST 2A 1.8 18.0 77.9 11.6
2026-04-03 17:00 - 20:00 CEST 2A 1.3 13.9 75.4 9.0
2026-04-03 18:00 - 21:00 CEST 2A 1.3 13.3 70.1 9.4
2026-04-03 19:00 - 22:00 CEST 2A 1.3 13.7 64.1 11.0
2026-04-03 20:00 - 23:00 CEST 2A 1.3 15.1 60.7 12.5
2026-04-03 21:00 - 00:00 CEST 1B 1.3 16.6 56.1 14.4
2026-04-03 22:00 - 01:00 CEST 1B 1.3 18.5 50.6 16.2
2026-04-03 23:00 - 02:00 CEST 1B 1.3 20.4 43.6 17.9
2026-04-04 00:00 - 03:00 CEST 1B 1.3 20.6 40.0 18.0
2026-04-04 01:00 - 04:00 CEST 1B 1.3 18.3 43.6 15.8
2026-04-04 02:00 - 05:00 CEST 1B 1.3 15.7 47.4 13.0
2026-04-04 03:00 - 06:00 CEST 1B 1.3 13.7 45.0 10.8
2026-04-04 04:00 - 07:00 CEST 1B 1.3 13.3 41.6 10.3
2026-04-04 05:00 - 08:00 CEST 1B 1.3 11.5 46.7 8.8
2026-04-04 06:00 - 09:00 CEST 1B 1.3 9.2 56.2 6.9
2026-04-04 07:00 - 10:00 CEST 1B 1.3 8.0 65.1 5.5
2026-04-04 08:00 - 11:00 CEST 1B 1.3 8.2 65.9 5.3
2026-04-04 09:00 - 12:00 CEST 2A 1.3 11.6 64.5 5.3
2026-04-04 10:00 - 13:00 CEST 1B 1.3 10.8 64.3 4.6
2026-04-04 11:00 - 14:00 CEST 1B 1.3 11.1 63.7 3.8
2026-04-04 12:00 - 15:00 CEST 1B 1.3 7.0 64.0 3.2
2026-04-04 13:00 - 16:00 CEST 1B 1.3 6.5 66.0 3.2
2026-04-04 14:00 - 17:00 CEST 1B 1.3 4.9 70.5 3.3
2026-04-04 15:00 - 18:00 CEST 2A 1.3 5.0 77.3 3.3

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