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

Updated: 2025-09-08 19:26 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
2025-09-07 17:00 - 20:00 CEST 2A 18.0 5.1 84.1
2025-09-07 18:00 - 21:00 CEST 2A 34.8 2.7 75.0
2025-09-07 19:00 - 22:00 CEST 2A 54.7 1.5 59.4
2025-09-07 20:00 - 23:00 CEST 2A 67.8 4.4 49.0
2025-09-07 21:00 - 00:00 CEST 2A 61.0 9.3 45.4
2025-09-07 22:00 - 01:00 CEST 2A 42.6 13.7 47.6
2025-09-07 23:00 - 02:00 CEST 2A 27.4 16.4 47.8
2025-09-08 00:00 - 03:00 CEST 1B 21.4 14.4 45.1
2025-09-08 01:00 - 04:00 CEST 1B 25.4 11.8 37.8
2025-09-08 02:00 - 05:00 CEST 1B 23.1 7.1 30.9
2025-09-08 03:00 - 06:00 CEST 1B 22.4 7.9 29.8
2025-09-08 04:00 - 07:00 CEST 1B 22.6 11.2 25.4
2025-09-08 05:00 - 08:00 CEST 1B 27.0 15.8 19.7
2025-09-08 06:00 - 09:00 CEST 1B 33.2 16.0 17.7
2025-09-08 07:00 - 10:00 CEST 1B 37.2 21.7 21.4
2025-09-08 08:00 - 11:00 CEST 2A 38.8 23.1 31.5
2025-09-08 09:00 - 12:00 CEST 2A 35.8 23.5 39.7
2025-09-08 10:00 - 13:00 CEST 2A 28.8 15.3 51.0
2025-09-08 11:00 - 14:00 CEST 2A 22.3 12.1 63.3
2025-09-08 12:00 - 15:00 CEST 2A 19.1 14.3 76.7
2025-09-08 13:00 - 16:00 CEST 2A 18.9 15.3 86.9
2025-09-08 14:00 - 17:00 CEST 2B 16.6 15.4 93.3
2025-09-08 15:00 - 18:00 CEST 2B 14.5 11.3 96.3
2025-09-08 16:00 - 19:00 CEST 2A 13.4 9.3 95.7

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