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ISKO
Information about air quality in the Czech Republic
Preliminary overview of the ambient limits exceedances

Year: 2025

calculated of both operational data (yet unverified) and verified data

Updated: 2025-08-11 04:21 CEST

Values given regardless of whether the number of valid measurement meets the criteria for calculating the aggregated data (annual average).

Description Value
Purpose: Health protection
Pollutant: O₃ - ozone
Averaging interval: 8 hours
Unit: µg∙m -3
Year ambient limit: 120
Max. permissible number of exceedances: 25
Owner: ČHMÚ
Data supplier: ČHMÚ-pobočka Ústí n/Labem-AIM
Code of the measuring programme: URVHA
Locality: Rudolice v Horách
Sequence Date Value
1 2025-04-28 18:00 125
2 2025-04-29 16:00 131
3 2025-05-01 17:00 126
4 2025-05-02 16:00 141
5 2025-05-03 00:00 127
6 2025-05-13 20:00 123
7 2025-06-12 18:00 132
8 2025-06-13 18:00 126
9 2025-06-14 21:00 139
10 2025-06-15 00:00 131
11 2025-06-18 21:00 131
12 2025-06-19 00:00 125
13 2025-06-22 21:00 128
14 2025-06-23 02:00 128
15 2025-07-01 22:00 127
16 2025-07-02 18:00 144
17 2025-07-03 00:00 133
18 2025-07-05 21:00 129
19 2025-07-06 00:00 125
20 2025-08-09 22:00 136
21 2025-08-10 00:00 127