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: Ostrava-Nova Ves-areal OVak
Code: TONVA
Type of measuring programme: Automated measuring program
Locality owner: ZU, MSK
Classification
Abbreviation: T/U/IAN
Localization
Coordinates: 49° 49´ 26.693" North latitude 18° 14´ 5.796" East longitude
Altitude: 210 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 1B 43.3 34.7 17.3
2025-07-03 15:00 - 18:00 CEST 1B 42.2 39.0 20.0
2025-07-03 16:00 - 19:00 CEST 1B 45.6 38.7 20.3
2025-07-03 17:00 - 20:00 CEST 1B 42.3 33.7 17.7
2025-07-03 18:00 - 21:00 CEST 1B 33.5 31.3 15.7
2025-07-03 19:00 - 22:00 CEST 1B 20.3 27.0 13.3
2025-07-03 20:00 - 23:00 CEST 1A 12.9 24.0 11.7
2025-07-03 21:00 - 00:00 CEST 1A 11.0 19.7 11.0
2025-07-03 22:00 - 01:00 CEST 1A 11.3 17.3 10.3
2025-07-03 23:00 - 02:00 CEST 1A 14.8 16.0 10.0
2025-07-04 00:00 - 03:00 CEST 1A 17.6 14.7 9.0
2025-07-04 01:00 - 04:00 CEST 1A 18.3 12.7 7.7
2025-07-04 02:00 - 05:00 CEST 1A 15.9 11.0 6.3
2025-07-04 03:00 - 06:00 CEST 1A 18.5 12.3 6.7
2025-07-04 04:00 - 07:00 CEST 1A 25.4 15.0 8.0
2025-07-04 05:00 - 08:00 CEST 1B 31.7 17.7 10.0
2025-07-04 06:00 - 09:00 CEST 1A 31.3 16.3 10.0
2025-07-04 07:00 - 10:00 CEST 1A 27.1 13.0 8.3
2025-07-04 08:00 - 11:00 CEST 1A 25.0 10.0 6.0
2025-07-04 09:00 - 12:00 CEST 1A 23.9 9.3 5.0
2025-07-04 10:00 - 13:00 CEST 1A 24.2 10.0 5.0
2025-07-04 11:00 - 14:00 CEST 1A 26.8 10.0 5.3
2025-07-04 12:00 - 15:00 CEST 1A 30.0 11.0 6.0
2025-07-04 13:00 - 16:00 CEST 1A 33.6 12.3 7.3

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