Information about air quality in the Czech Republic

Year: 2021

Preliminary overview of the ambient limits exceedances

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

Updated: 2022-06-30 08:42 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: PM₁₀ - particles PM10
Averaging interval: 24 hours
Unit: µg/m³
Ambient limit: 50
Max. permissible number of exceedances: 35
Owner: ČHMÚ
Data supplier: CHMI-brand Ostrava AIM
Code of the measuring programme: TOVKA
Locality: Opava-Kateřinky
Sequence Date Value
1 2021-01-02 00:00 74.7
2 2021-01-03 00:00 93.5
3 2021-01-04 00:00 99.6
4 2021-01-17 00:00 51.4
5 2021-01-18 00:00 73.5
6 2021-02-01 00:00 106.0
7 2021-02-05 00:00 53.0
8 2021-02-09 00:00 81.5
9 2021-02-10 00:00 83.0
10 2021-02-15 00:00 107.5
11 2021-02-23 00:00 54.1
12 2021-02-24 00:00 74.0
13 2021-02-25 00:00 57.0
14 2021-02-26 00:00 57.3
15 2021-03-10 00:00 69.5
16 2021-11-15 00:00 51.8
17 2021-12-09 00:00 63.0
18 2021-12-13 00:00 65.1
19 2021-12-26 00:00 65.0
20 2021-12-27 00:00 106.7
21 2021-12-28 00:00 72.4