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: 2025-07-04 16:26 CEST


Basic data Locality photo
Locality: Opava-Katerinky
Code: TOVKA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: B/U/R
Localization
Coordinates: 49° 56´ 41.958" North latitude 17° 54´ 34.310" East longitude
Altitude: 255 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
2025-07-03 14:00 - 17:00 CEST 29.3 15.2
2025-07-03 15:00 - 18:00 CEST 39.9 23.1
2025-07-03 16:00 - 19:00 CEST 48.4 31.1
2025-07-03 17:00 - 20:00 CEST 45.0 31.5
2025-07-03 18:00 - 21:00 CEST 39.5 25.7
2025-07-03 19:00 - 22:00 CEST 33.3 23.7
2025-07-03 20:00 - 23:00 CEST 29.8 24.4
2025-07-03 21:00 - 00:00 CEST 23.6 24.4
2025-07-03 22:00 - 01:00 CEST 19.4 19.0
2025-07-03 23:00 - 02:00 CEST 14.4 12.7
2025-07-04 00:00 - 03:00 CEST 15.2 9.5
2025-07-04 01:00 - 04:00 CEST 20.8 11.1
2025-07-04 02:00 - 05:00 CEST 23.5 11.8
2025-07-04 03:00 - 06:00 CEST 18.1 11.8
2025-07-04 04:00 - 07:00 CEST 12.2 8.4
2025-07-04 05:00 - 08:00 CEST 10.2 10.9
2025-07-04 06:00 - 09:00 CEST 15.8 12.0
2025-07-04 07:00 - 10:00 CEST 16.5 11.0
2025-07-04 08:00 - 11:00 CEST 15.9 6.7
2025-07-04 09:00 - 12:00 CEST 8.8 4.4
2025-07-04 10:00 - 13:00 CEST 5.9 4.7
2025-07-04 11:00 - 14:00 CEST 7.4 4.4
2025-07-04 12:00 - 15:00 CEST 8.4 8.8
2025-07-04 13:00 - 16:00 CEST 11.8 9.4

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