Information about air quality in the Czech Republic

Current overview of data from automated stations (non-verified data)

Updated: 2024-11-22 00:29 CET


Locality

Basic data Locality photo
Locality: Ondrejov
Code: SONRA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: B/R/N-REG
Localization
Coordinates: 49° 54´ 48.647" North latitude 14° 46´ 57.451" East longitude
Altitude: 514 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
2024-11-20 22:00 - 01:00 CET 1A 48.6 4.7
2024-11-20 23:00 - 02:00 CET 1A 48.2 4.0
2024-11-21 00:00 - 03:00 CET 1A 48.3 3.9
2024-11-21 01:00 - 04:00 CET 1A 48.2 5.0
2024-11-21 02:00 - 05:00 CET 1A 47.4 5.5
2024-11-21 03:00 - 06:00 CET 1A 47.3 6.2
2024-11-21 04:00 - 07:00 CET 1A 48.2 5.0
2024-11-21 05:00 - 08:00 CET 1A 50.3 4.7
2024-11-21 06:00 - 09:00 CET 1A 51.2 4.4
2024-11-21 07:00 - 10:00 CET 1A 51.2 5.3
2024-11-21 08:00 - 11:00 CET 1A 48.9 6.8
2024-11-21 09:00 - 12:00 CET 1A 47.6 9.2
2024-11-21 10:00 - 13:00 CET 1A 47.4 9.3
2024-11-21 11:00 - 14:00 CET 1A 49.2 7.9
2024-11-21 12:00 - 15:00 CET 1A 50.1 5.2
2024-11-21 13:00 - 16:00 CET 1A 50.4 3.9
2024-11-21 14:00 - 17:00 CET 1A 50.1 2.8
2024-11-21 15:00 - 18:00 CET 1A 48.5 2.5
2024-11-21 16:00 - 19:00 CET 1A 47.0 2.2
2024-11-21 17:00 - 20:00 CET 1A 45.6 2.6
2024-11-21 18:00 - 21:00 CET 1A 45.7 3.1
2024-11-21 19:00 - 22:00 CET 1A 45.8 3.7
2024-11-21 20:00 - 23:00 CET 1A 46.1 4.2
2024-11-21 21:00 - 00:00 CET 1A 45.6 4.4

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