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

Updated: 2026-05-24 17:25 CEST


Basic data Locality photo
Locality: Praha 1-n. Republiky
Code: AREPA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: B/U/C
Localization
Coordinates: 50° 5´ 17.038" North latitude 14° 25´ 45.193" East longitude
Altitude: 190 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
2026-05-23 15:00 - 18:00 CEST 2B 10.9 11.2 106.4
2026-05-23 16:00 - 19:00 CEST 2B 11.7 11.2 108.7
2026-05-23 17:00 - 20:00 CEST 2B 11.9 10.9 110.9
2026-05-23 18:00 - 21:00 CEST 2B 20.3 11.5 105.3
2026-05-23 19:00 - 22:00 CEST 2B 25.7 20.4 93.6
2026-05-23 20:00 - 23:00 CEST 2B 57.5 29.7 72.3
2026-05-23 21:00 - 00:00 CEST 2B 65.9 41.2 49.0
2026-05-23 22:00 - 01:00 CEST 2A 54.1 37.8 31.3
2026-05-23 23:00 - 02:00 CEST 2A 38.1 32.1 33.9
2026-05-24 00:00 - 03:00 CEST 2A 30.0 28.8 38.2
2026-05-24 01:00 - 04:00 CEST 2A 29.2 26.4 43.9
2026-05-24 02:00 - 05:00 CEST 2A 27.2 26.0 35.3
2026-05-24 03:00 - 06:00 CEST 1B 24.9 20.9 29.1
2026-05-24 04:00 - 07:00 CEST 1B 21.6 26.2 28.2
2026-05-24 05:00 - 08:00 CEST 2A 22.8 33.1 28.6
2026-05-24 06:00 - 09:00 CEST 2A 20.9 34.8 37.2
2026-05-24 07:00 - 10:00 CEST 2A 19.8 33.0 54.1
2026-05-24 08:00 - 11:00 CEST 2B 16.1 28.3 77.7
2026-05-24 09:00 - 12:00 CEST 2B 12.7 27.7 99.8
2026-05-24 10:00 - 13:00 CEST 2B 10.2 21.4 114.3
2026-05-24 11:00 - 14:00 CEST 2B 8.5 14.3 120.6
2026-05-24 12:00 - 15:00 CEST 2B 9.4 12.1 120.0
2026-05-24 13:00 - 16:00 CEST 2B 9.6 12.4 117.4
2026-05-24 14:00 - 17:00 CEST 2B 11.5 15.5 114.4

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