Information about air quality in the Czech Republic

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

Updated: 2024-04-19 22:26 CEST


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 PM 10 - from model O 3 - from model
3h average 3h average 3h average 3h average 3h average 3h average
[µg/m³] [µg/m³] [µg/m³] [µg/m³] [µg/m³] [µg/m³]
2024-04-18 20:00 - 23:00 CEST 1B 71.6 4.9
2024-04-18 21:00 - 00:00 CEST 1B 69.1 5.5
2024-04-18 22:00 - 01:00 CEST 1B 65.8 6.7
2024-04-18 23:00 - 02:00 CEST 1B 64.8 7.2
2024-04-19 00:00 - 03:00 CEST 1B 64.1 8.6
2024-04-19 01:00 - 04:00 CEST 1B 64.8 9.6
2024-04-19 02:00 - 05:00 CEST 1B 62.5 10.0
2024-04-19 03:00 - 06:00 CEST 1B 60.7 9.8
2024-04-19 04:00 - 07:00 CEST 1B 59.5 8.8
2024-04-19 05:00 - 08:00 CEST 1B 58.0 8.3
2024-04-19 06:00 - 09:00 CEST 1B 57.4 8.3
2024-04-19 07:00 - 10:00 CEST 1B 57.8 9.3
2024-04-19 08:00 - 11:00 CEST 1B 61.7 13.6
2024-04-19 09:00 - 12:00 CEST 2A 69.2 12.6
2024-04-19 10:00 - 13:00 CEST 2A 77.4 10.7
2024-04-19 11:00 - 14:00 CEST 2A 82.0 8.8
2024-04-19 12:00 - 15:00 CEST 2A 82.5 7.3
2024-04-19 13:00 - 16:00 CEST 2A 82.3 6.1
2024-04-19 14:00 - 17:00 CEST 2A 79.6 6.8
2024-04-19 15:00 - 18:00 CEST 2A 75.7 6.9
2024-04-19 16:00 - 19:00 CEST 1B 70.7 6.7
2024-04-19 17:00 - 20:00 CEST 1B 68.6 4.8
2024-04-19 18:00 - 21:00 CEST 1B 66.6 4.0
2024-04-19 19:00 - 22:00 CEST 1B 63.9 3.3

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