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: 2025-12-05 06:26 CET


Basic data Locality photo
Locality: Letiste Praha
Code: ALERA
Type of measuring programme: Automated measuring program
Locality owner: Letiste Praha, s.r.o.
Classification
Abbreviation: T/S/C
Localization
Coordinates: 50° 6´ 25.510" North latitude 14° 15´ 26.014" East longitude
Altitude: 376 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
2025-12-04 04:00 - 07:00 CET 1B 18.4 28.0 11.1 16.7
2025-12-04 05:00 - 08:00 CET 1B 22.8 29.2 8.4 16.0
2025-12-04 06:00 - 09:00 CET 1B 28.0 33.2 5.2 18.7
2025-12-04 07:00 - 10:00 CET 1B 30.6 35.5 4.5 19.4
2025-12-04 08:00 - 11:00 CET 1B 35.1 36.6 7.6 22.0
2025-12-04 09:00 - 12:00 CET 1B 35.0 32.4 13.6 19.9
2025-12-04 10:00 - 13:00 CET 1B 28.9 28.3 23.8 18.7
2025-12-04 11:00 - 14:00 CET 1B 19.6 23.2 30.7 13.4
2025-12-04 12:00 - 15:00 CET 1A 13.7 20.9 33.9 11.4
2025-12-04 13:00 - 16:00 CET 1A 15.7 20.9 31.2 9.6
2025-12-04 14:00 - 17:00 CET 1B 16.6 23.4 28.6 12.6
2025-12-04 15:00 - 18:00 CET 1B 17.4 26.0 26.3 12.7
2025-12-04 16:00 - 19:00 CET 1B 17.9 26.9 22.8 13.5
2025-12-04 17:00 - 20:00 CET 1B 22.2 27.5 17.3 11.8
2025-12-04 18:00 - 21:00 CET 1B 27.9 28.9 10.9 13.1
2025-12-04 19:00 - 22:00 CET 1B 31.5 32.4 6.6 16.8
2025-12-04 20:00 - 23:00 CET 1B 30.9 35.0 4.9 18.5
2025-12-04 21:00 - 00:00 CET 1B 27.6 36.0 6.1 21.3
2025-12-04 22:00 - 01:00 CET 1B 22.7 34.3 9.1 19.6
2025-12-04 23:00 - 02:00 CET 1B 19.4 29.6 11.9 17.6
2025-12-05 00:00 - 03:00 CET 1B 17.9 24.5 12.5 14.7
2025-12-05 01:00 - 04:00 CET 1A 17.2 19.3 12.2 12.0
2025-12-05 02:00 - 05:00 CET 1A 16.9 17.9 11.8 11.9
2025-12-05 03:00 - 06:00 CET 1A 17.9 17.6 10.5 11.7

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