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: 2025-07-10 19:24 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
2025-07-09 17:00 - 20:00 CEST 2A 8.9 71.6
2025-07-09 18:00 - 21:00 CEST 2A 10.6 70.8
2025-07-09 19:00 - 22:00 CEST 2A 11.5 69.2
2025-07-09 20:00 - 23:00 CEST 2A 14.0 67.0
2025-07-09 21:00 - 00:00 CEST 1B 10.4 65.3
2025-07-09 22:00 - 01:00 CEST 1B 8.8 63.7
2025-07-09 23:00 - 02:00 CEST 1B 7.8 62.9
2025-07-10 00:00 - 03:00 CEST 1B 7.0 61.4
2025-07-10 01:00 - 04:00 CEST 1B 6.8 59.3
2025-07-10 02:00 - 05:00 CEST 1B 7.0 58.0
2025-07-10 03:00 - 06:00 CEST 1B 7.6 56.2
2025-07-10 04:00 - 07:00 CEST 1B 9.5 54.8
2025-07-10 05:00 - 08:00 CEST 1B 7.7 53.6
2025-07-10 06:00 - 09:00 CEST 1B 9.7 54.2
2025-07-10 07:00 - 10:00 CEST 1B 16.1 56.3
2025-07-10 08:00 - 11:00 CEST 2A 20.0 60.8
2025-07-10 09:00 - 12:00 CEST 2A 22.2 65.3
2025-07-10 10:00 - 13:00 CEST 2A 15.8 70.2
2025-07-10 11:00 - 14:00 CEST 2A 14.7 74.4
2025-07-10 12:00 - 15:00 CEST 2A 10.8 78.0
2025-07-10 13:00 - 16:00 CEST 2A 9.2 79.6
2025-07-10 14:00 - 17:00 CEST 2A 5.9 81.1
2025-07-10 15:00 - 18:00 CEST 2A 4.4 82.5
2025-07-10 16:00 - 19:00 CEST 2A 10.5 83.2

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