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: 2026-05-24 17:25 CEST


Basic data Locality photo
Locality: Praha 2-Legerova
Code: ALEGA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: T/U/RC
Localization
Coordinates: 50° 4´ 20.596" North latitude 14° 25´ 50.422" East longitude
Altitude: 219 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
2026-05-23 15:00 - 18:00 CEST 2B 42.1 18.3 106.4 10.7
2026-05-23 16:00 - 19:00 CEST 2B 45.7 18.3 108.8 11.2
2026-05-23 17:00 - 20:00 CEST 2B 56.3 19.8 110.8 12.5
2026-05-23 18:00 - 21:00 CEST 2B 68.0 20.7 105.2 13.0
2026-05-23 19:00 - 22:00 CEST 2B 79.8 24.1 93.5 14.4
2026-05-23 20:00 - 23:00 CEST 2B 85.8 28.9 72.1 16.9
2026-05-23 21:00 - 00:00 CEST 2B 84.2 35.9 49.0 20.3
2026-05-23 22:00 - 01:00 CEST 2B 69.8 38.1 31.6 22.6
2026-05-23 23:00 - 02:00 CEST 2A 52.5 36.7 34.0 22.9
2026-05-24 00:00 - 03:00 CEST 2A 39.0 31.9 38.2 22.0
2026-05-24 01:00 - 04:00 CEST 2A 34.6 29.5 43.8 21.0
2026-05-24 02:00 - 05:00 CEST 2A 33.6 28.0 35.3 20.3
2026-05-24 03:00 - 06:00 CEST 2A 32.2 26.7 29.2 19.6
2026-05-24 04:00 - 07:00 CEST 2A 32.2 26.1 28.4 19.2
2026-05-24 05:00 - 08:00 CEST 2A 32.4 25.4 28.9 18.9
2026-05-24 06:00 - 09:00 CEST 2A 37.7 26.7 37.4 19.1
2026-05-24 07:00 - 10:00 CEST 2A 38.6 26.1 54.3 18.4
2026-05-24 08:00 - 11:00 CEST 2B 39.4 27.0 77.9 18.4
2026-05-24 09:00 - 12:00 CEST 2B 35.9 24.6 99.8 16.6
2026-05-24 10:00 - 13:00 CEST 2B 29.5 21.9 114.3 14.5
2026-05-24 11:00 - 14:00 CEST 2B 26.0 19.1 120.6 11.9
2026-05-24 12:00 - 15:00 CEST 2B 23.3 18.7 120.0 10.4
2026-05-24 13:00 - 16:00 CEST 2B 30.4 21.2 117.4 9.9
2026-05-24 14:00 - 17:00 CEST 2B 33.6 24.6 114.4 10.5

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