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: Chomutov
Code: UCHMA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: B/U/R
Localization
Coordinates: 50° 28´ 3.105" North latitude 13° 24´ 45.705" East longitude
Altitude: 344 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
2025-07-03 14:00 - 17:00 CEST 2A 11.1 76.3
2025-07-03 15:00 - 18:00 CEST 2A 11.6 76.9
2025-07-03 16:00 - 19:00 CEST 2A 13.2 78.9
2025-07-03 17:00 - 20:00 CEST 2A 13.2 80.9
2025-07-03 18:00 - 21:00 CEST 2A 11.5 81.4
2025-07-03 19:00 - 22:00 CEST 2A 17.2 81.1
2025-07-03 20:00 - 23:00 CEST 2A 22.2 70.8
2025-07-03 21:00 - 00:00 CEST 2A 24.5 59.5
2025-07-03 22:00 - 01:00 CEST 1B 17.2 54.6
2025-07-03 23:00 - 02:00 CEST 1B 9.8 56.9
2025-07-04 00:00 - 03:00 CEST 1B 6.2 62.2
2025-07-04 01:00 - 04:00 CEST 1B 7.0 63.2
2025-07-04 02:00 - 05:00 CEST 1B 7.0 64.2
2025-07-04 03:00 - 06:00 CEST 2A 13.5 63.3
2025-07-04 04:00 - 07:00 CEST 2A 16.6 61.5
2025-07-04 05:00 - 08:00 CEST 2A 18.3 60.7
2025-07-04 06:00 - 09:00 CEST 2A 13.8 63.2
2025-07-04 07:00 - 10:00 CEST 2A 25.4 70.4
2025-07-04 08:00 - 11:00 CEST 2B 32.4 78.3
2025-07-04 09:00 - 12:00 CEST 2B 39.1 87.9
2025-07-04 10:00 - 13:00 CEST 2B 26.4 91.3
2025-07-04 11:00 - 14:00 CEST 2B 20.7 95.4
2025-07-04 12:00 - 15:00 CEST 2B 16.5 98.0
2025-07-04 13:00 - 16:00 CEST 2B 14.1 102.4

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