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: 2025-07-16 03:25 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
2025-07-15 01:00 - 04:00 CEST 14.1 7.9
2025-07-15 02:00 - 05:00 CEST 15.6 5.2
2025-07-15 03:00 - 06:00 CEST 11.9 7.5
2025-07-15 04:00 - 07:00 CEST 13.7 9.5
2025-07-15 05:00 - 08:00 CEST 13.0 11.6
2025-07-15 06:00 - 09:00 CEST 12.5 12.3
2025-07-15 07:00 - 10:00 CEST 9.9 11.8
2025-07-15 08:00 - 11:00 CEST 8.4 10.8
2025-07-15 09:00 - 12:00 CEST 8.5 6.8
2025-07-15 10:00 - 13:00 CEST 15.4 6.9
2025-07-15 11:00 - 14:00 CEST 21.2 9.2
2025-07-15 12:00 - 15:00 CEST 25.7 10.3
2025-07-15 13:00 - 16:00 CEST 19.0 13.6
2025-07-15 14:00 - 17:00 CEST 13.8 13.1
2025-07-15 15:00 - 18:00 CEST 9.0 13.0
2025-07-15 16:00 - 19:00 CEST 5.9 7.4
2025-07-15 17:00 - 20:00 CEST 9.3 10.1
2025-07-15 18:00 - 21:00 CEST 11.0 11.4
2025-07-15 19:00 - 22:00 CEST 11.7 12.1
2025-07-15 20:00 - 23:00 CEST 10.6 6.8
2025-07-15 21:00 - 00:00 CEST 9.7 5.8
2025-07-15 22:00 - 01:00 CEST 13.2 9.9
2025-07-15 23:00 - 02:00 CEST 13.4 11.9
2025-07-16 00:00 - 03:00 CEST 17.5 11.2

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