Web Generator 1.0.0
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: Praha 7-Holesovice
Code: AHOLA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: T/U/RC
Localization
Coordinates: 50° 6´ 31.841" North latitude 14° 26´ 37.141" East longitude
Altitude: 185 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 1B 10.2 26.1 4.9
2026-04-03 17:00 - 20:00 CEST 1A 10.5 21.1 5.7
2026-04-03 18:00 - 21:00 CEST 1A 15.6 13.9 5.1
2026-04-03 19:00 - 22:00 CEST 1A 22.5 12.7 6.5
2026-04-03 20:00 - 23:00 CEST 1A 32.5 10.2 5.8
2026-04-03 21:00 - 00:00 CEST 1B 36.0 17.6 6.6
2026-04-03 22:00 - 01:00 CEST 1B 37.0 19.0 12.2
2026-04-03 23:00 - 02:00 CEST 1B 38.4 20.0 15.4
2026-04-04 00:00 - 03:00 CEST 1A 30.5 12.2 15.9
2026-04-04 01:00 - 04:00 CEST 1A 24.7 10.3 9.9
2026-04-04 02:00 - 05:00 CEST 1A 18.9 9.1 7.9
2026-04-04 03:00 - 06:00 CEST 1A 23.1 13.3 7.4
2026-04-04 04:00 - 07:00 CEST 1A 18.9 14.7 8.2
2026-04-04 05:00 - 08:00 CEST 1A 11.7 15.4 7.3
2026-04-04 06:00 - 09:00 CEST 1A 11.6 10.1 10.6
2026-04-04 07:00 - 10:00 CEST 1A 11.2 9.4 11.5
2026-04-04 08:00 - 11:00 CEST 1A 10.4 11.0 12.6
2026-04-04 09:00 - 12:00 CEST 1A 10.0 12.8 11.9
2026-04-04 10:00 - 13:00 CEST 1A 9.3 14.1 10.6
2026-04-04 11:00 - 14:00 CEST 1A 8.8 13.1 9.3
2026-04-04 12:00 - 15:00 CEST 1A 8.1 12.5 6.3
2026-04-04 13:00 - 16:00 CEST 1A 8.5 8.4 4.6
2026-04-04 14:00 - 17:00 CEST 1A 8.2 15.7 4.3
2026-04-04 15:00 - 18:00 CEST 1A 10.5 18.8 2.9

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