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: 2026-05-24 17:25 CEST


Basic data Locality photo
Locality: Sneznik
Code: USNZA
Type of measuring programme: Automated measuring program
Locality owner: Czech Hydrometeorological Institute
Classification
Abbreviation: B/R/N-REG
Localization
Coordinates: 50° 47´ 21.998" North latitude 14° 5´ 12.475" East longitude
Altitude: 590 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
2026-05-23 15:00 - 18:00 CEST 2B 1.3 1.0 97.9 17.9
2026-05-23 16:00 - 19:00 CEST 2B 1.3 1.4 103.4 18.0
2026-05-23 17:00 - 20:00 CEST 2B 1.3 1.9 106.8 13.8
2026-05-23 18:00 - 21:00 CEST 2B 1.3 2.9 103.4 12.5
2026-05-23 19:00 - 22:00 CEST 2A 1.3 3.6 95.8 13.8
2026-05-23 20:00 - 23:00 CEST 2A 1.3 4.4 86.7 14.3
2026-05-23 21:00 - 00:00 CEST 2A 1.3 4.5 83.7 14.7
2026-05-23 22:00 - 01:00 CEST 2A 1.3 4.3 82.4 13.1
2026-05-23 23:00 - 02:00 CEST 2A 1.9 3.8 89.4 13.8
2026-05-24 00:00 - 03:00 CEST 2A 1.9 3.1 96.7 12.7
2026-05-24 01:00 - 04:00 CEST 2A 1.9 2.5 99.2 11.8
2026-05-24 02:00 - 05:00 CEST 2B 1.3 2.1 102.6 14.3
2026-05-24 03:00 - 06:00 CEST 2B 1.3 1.5 102.8 16.4
2026-05-24 04:00 - 07:00 CEST 2B 1.3 1.5 102.7 17.5
2026-05-24 05:00 - 08:00 CEST 2B 1.9 1.9 100.6 21.0
2026-05-24 06:00 - 09:00 CEST 2B 1.9 1.9 101.5 22.8
2026-05-24 07:00 - 10:00 CEST 2B 1.9 1.5 103.5 27.8
2026-05-24 08:00 - 11:00 CEST 2B 1.3 1.0 109.2 28.8
2026-05-24 09:00 - 12:00 CEST 2B 1.3 1.0 113.4 29.6
2026-05-24 10:00 - 13:00 CEST 2B 1.3 1.0 115.8 23.9
2026-05-24 11:00 - 14:00 CEST 2B 1.3 1.0 115.6 18.3
2026-05-24 12:00 - 15:00 CEST 2B 1.3 1.0 115.8 15.0
2026-05-24 13:00 - 16:00 CEST 2B 1.3 1.3 120.9 14.1
2026-05-24 14:00 - 17:00 CEST 2B 1.3 1.7 128.0 14.9

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