Air Pollution in Čtyři Dvory: Real-time Air Quality Index and smog alert.
Pollution and air quality forecast for Čtyři Dvory. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Čtyři Dvory:- particulate matter (PM10) suspended dust - 20 (Moderate)
- sulfur dioxide (SO2) - 6 (Good)
- nitrogen dioxide (NO2) - 30 (Good)
- ozone (O3) - 36 (Good)
- particulate matter (PM2.5) dust - 6 (Good)
What is the air quality in Čtyři Dvory today? Is the air polluted in Čtyři Dvory?. Is there smog?
What is the level of PM10 today in Čtyři Dvory? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Čtyři Dvory is:
20 (Moderate)
The highest PM10 values usually occur in month: 32 (February 2018).
The lowest value of particulate matter PM10 pollution in Čtyři Dvory is usually recorded in: February (8.7).
What is the level of SO2 pollution? (sulfur dioxide (SO2))
6 (Good)
How high is the level of NO2? (nitrogen dioxide (NO2))
30 (Good)
How is the O3 level today in Čtyři Dvory? (ozone (O3))
36 (Good)
What is the current level of PM2.5 in Čtyři Dvory? (particulate matter (PM2.5) dust)
Today's PM2.5 level is:
6 (Good)
For comparison, the highest level of PM2.5 in Čtyři Dvory in the last 7 days was: 68 (Thursday, January 11, 2024) and the lowest: 8 (Sunday, January 14, 2024).
The highest PM2.5 values were recorded: 30 (February 2018).
The lowest level of particulate matter PM2.5 pollution occurs in month: February (6.9).
Current data Wednesday, January 17, 2024, 10:00 AM
8 (Good)
PM10 20 (Moderate)
SO2 6 (Good)
NO2 30 (Good)
O3 36 (Good)
PM2,5 6 (Good)
Data on air pollution from recent days in Čtyři Dvory
index
2024-01-10
2024-01-11
2024-01-12
2024-01-13
2024-01-14
2024-01-15
2024-01-16
2024-01-17
no2
36
Good
43
Moderate
29
Good
15
Good
7
Good
7
Good
9
Good
22
Good
o3
18
Good
15
Good
28
Good
37
Good
50
Good
56
Good
57
Good
36
Good
pm25
51
Unhealthy for Sensitive Groups
68
Unhealthy
42
Unhealthy for Sensitive Groups
19
Moderate
8
Good
9
Good
8
Good
10
Good
no
14
Good
22
Good
7
Good
4
Good
2
Good
1
Good
1
Good
4
Good
so2
5
Good
5
Good
5
Good
3
Good
4
Good
5
Good
4
Good
5
Good
pm10
66
Unhealthy for Sensitive Groups
79
Unhealthy for Sensitive Groups
43
Moderate
20
Moderate
8
Good
10
Good
9
Good
13
Good
data source »
Air pollution in Čtyři Dvory from September 2017 to May 2020
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
2018-10
2018-09
2018-08
2018-07
2018-06
2018-05
2018-04
2018-03
2018-02
2018-01
2017-12
2017-11
2017-10
2017-09
so2
3.5 (Good)
9.8 (Good)
9.1 (Good)
4.2 (Good)
4.2 (Good)
4.8 (Good)
5.6 (Good)
4.6 (Good)
5.7 (Good)
2.3 (Good)
4.1 (Good)
4 (Good)
2.9 (Good)
3.3 (Good)
2.5 (Good)
2.9 (Good)
7 (Good)
2 (Good)
1.8 (Good)
2.1 (Good)
1.6 (Good)
1.5 (Good)
1.9 (Good)
1.4 (Good)
1.6 (Good)
1.6 (Good)
2.8 (Good)
3.7 (Good)
1.9 (Good)
2.3 (Good)
5.4 (Good)
5 (Good)
5.1 (Good)
pm10
11 (Good)
19 (Good)
18 (Good)
8.7 (Good)
27 (Moderate)
19 (Good)
15 (Good)
15 (Good)
12 (Good)
13 (Good)
15 (Good)
16 (Good)
11 (Good)
23 (Moderate)
12 (Good)
28 (Moderate)
15 (Good)
15 (Good)
29 (Moderate)
26 (Moderate)
15 (Good)
16 (Good)
16 (Good)
15 (Good)
16 (Good)
17 (Good)
27 (Moderate)
32 (Moderate)
15 (Good)
15 (Good)
14 (Good)
11 (Good)
22 (Moderate)
pm25
8.4 (Good)
14 (Moderate)
13 (Moderate)
6.9 (Good)
23 (Moderate)
16 (Moderate)
12 (Good)
11 (Good)
7.7 (Good)
10 (Good)
12 (Good)
12 (Good)
9.8 (Good)
19 (Moderate)
10 (Good)
22 (Moderate)
13 (Good)
13 (Moderate)
24 (Moderate)
20 (Moderate)
12 (Good)
13 (Moderate)
14 (Moderate)
12 (Good)
14 (Moderate)
14 (Moderate)
26 (Moderate)
30 (Moderate)
15 (Moderate)
16 (Moderate)
16 (Moderate)
13 (Good)
15 (Moderate)
no2
9.2 (Good)
14 (Good)
14 (Good)
10 (Good)
23 (Good)
15 (Good)
15 (Good)
13 (Good)
11 (Good)
9 (Good)
9.6 (Good)
7.8 (Good)
11 (Good)
13 (Good)
13 (Good)
29 (Good)
16 (Good)
18 (Good)
20 (Good)
18 (Good)
16 (Good)
14 (Good)
12 (Good)
10 (Good)
12 (Good)
15 (Good)
20 (Good)
21 (Good)
17 (Good)
22 (Good)
20 (Good)
16 (Good)
15 (Good)
o3
64 (Good)
64 (Good)
54 (Good)
55 (Good)
25 (Good)
30 (Good)
21 (Good)
27 (Good)
37 (Good)
52 (Good)
62 (Good)
71 (Moderate)
58 (Good)
64 (Good)
54 (Good)
30 (Good)
42 (Good)
31 (Good)
21 (Good)
39 (Good)
49 (Good)
73 (Moderate)
75 (Moderate)
67 (Good)
79 (Moderate)
72 (Moderate)
58 (Good)
41 (Good)
34 (Good)
30 (Good)
30 (Good)
37 (Good)
42 (Good)
data source »
Ceske Budejovice
Wednesday, January 17, 2024, 10:00 AM
8.2 (Good)
index_name_no
PM10 20 (Moderate)
particulate matter (PM10) suspended dust
SO2 5.9 (Good)
sulfur dioxide (SO2)
NO2 30 (Good)
nitrogen dioxide (NO2)
O3 36 (Good)
ozone (O3)
PM2,5 6.1 (Good)
particulate matter (PM2.5) dust
Ceske Budejovice
index
2024-01-17
2024-01-16
2024-01-15
2024-01-14
2024-01-13
2024-01-12
2024-01-11
2024-01-10
no2
22
8.5
7
7.4
15
29
43
36
o3
36
57
56
50
37
28
15
18
pm25
10
7.9
9.1
8.4
19
42
68
51
no
4.5
1.3
1.3
1.7
3.6
7.1
22
14
so2
5.4
4.1
4.8
3.8
3.5
4.6
5.1
5
pm10
13
9.2
9.7
8.1
20
43
79
66
CZ0CCBD
2017-09 2020-05
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
2018-10
2018-09
2018-08
2018-07
2018-06
2018-05
2018-04
2018-03
2018-02
2018-01
2017-12
2017-11
2017-10
2017-09
pm25
8.4
14
13
6.9
23
16
12
11
7.7
10
12
12
9.8
19
10
22
13
13
24
20
12
13
14
12
14
14
26
30
15
16
16
13
15
pm10
11
19
18
8.7
27
19
15
15
12
13
15
16
11
23
12
28
15
15
29
26
15
16
16
15
16
17
27
32
15
15
14
11
22
o3
64
64
54
55
25
30
21
27
37
52
62
71
58
64
54
30
42
31
21
39
49
73
75
67
79
72
58
41
34
30
30
37
42
so2
3.5
9.8
9.1
4.2
4.2
4.8
5.6
4.6
5.7
2.3
4.1
4
2.9
3.3
2.5
2.9
7
2
1.8
2.1
1.6
1.5
1.9
1.4
1.6
1.6
2.8
3.7
1.9
2.3
5.4
5
5.1
no2
9.2
14
14
10
23
15
15
13
11
9
9.6
7.8
11
13
13
29
16
18
20
18
16
14
12
10
12
15
20
21
17
22
20
16
15
* Pollution data source:
https://openaq.org
(EEA Czech Republic)
The data is licensed under CC-By 4.0
8 (Good)
PM10 20 (Moderate)
SO2 6 (Good)
NO2 30 (Good)
O3 36 (Good)
PM2,5 6 (Good)
Data on air pollution from recent days in Čtyři Dvory
| index | 2024-01-10 | 2024-01-11 | 2024-01-12 | 2024-01-13 | 2024-01-14 | 2024-01-15 | 2024-01-16 | 2024-01-17 |
|---|---|---|---|---|---|---|---|---|
| no2 | 36 Good |
43 Moderate |
29 Good |
15 Good |
7 Good |
7 Good |
9 Good |
22 Good |
| o3 | 18 Good |
15 Good |
28 Good |
37 Good |
50 Good |
56 Good |
57 Good |
36 Good |
| pm25 | 51 Unhealthy for Sensitive Groups |
68 Unhealthy |
42 Unhealthy for Sensitive Groups |
19 Moderate |
8 Good |
9 Good |
8 Good |
10 Good |
| no | 14 Good |
22 Good |
7 Good |
4 Good |
2 Good |
1 Good |
1 Good |
4 Good |
| so2 | 5 Good |
5 Good |
5 Good |
3 Good |
4 Good |
5 Good |
4 Good |
5 Good |
| pm10 | 66 Unhealthy for Sensitive Groups |
79 Unhealthy for Sensitive Groups |
43 Moderate |
20 Moderate |
8 Good |
10 Good |
9 Good |
13 Good |
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| so2 | 3.5 (Good) | 9.8 (Good) | 9.1 (Good) | 4.2 (Good) | 4.2 (Good) | 4.8 (Good) | 5.6 (Good) | 4.6 (Good) | 5.7 (Good) | 2.3 (Good) | 4.1 (Good) | 4 (Good) | 2.9 (Good) | 3.3 (Good) | 2.5 (Good) | 2.9 (Good) | 7 (Good) | 2 (Good) | 1.8 (Good) | 2.1 (Good) | 1.6 (Good) | 1.5 (Good) | 1.9 (Good) | 1.4 (Good) | 1.6 (Good) | 1.6 (Good) | 2.8 (Good) | 3.7 (Good) | 1.9 (Good) | 2.3 (Good) | 5.4 (Good) | 5 (Good) | 5.1 (Good) |
| pm10 | 11 (Good) | 19 (Good) | 18 (Good) | 8.7 (Good) | 27 (Moderate) | 19 (Good) | 15 (Good) | 15 (Good) | 12 (Good) | 13 (Good) | 15 (Good) | 16 (Good) | 11 (Good) | 23 (Moderate) | 12 (Good) | 28 (Moderate) | 15 (Good) | 15 (Good) | 29 (Moderate) | 26 (Moderate) | 15 (Good) | 16 (Good) | 16 (Good) | 15 (Good) | 16 (Good) | 17 (Good) | 27 (Moderate) | 32 (Moderate) | 15 (Good) | 15 (Good) | 14 (Good) | 11 (Good) | 22 (Moderate) |
| pm25 | 8.4 (Good) | 14 (Moderate) | 13 (Moderate) | 6.9 (Good) | 23 (Moderate) | 16 (Moderate) | 12 (Good) | 11 (Good) | 7.7 (Good) | 10 (Good) | 12 (Good) | 12 (Good) | 9.8 (Good) | 19 (Moderate) | 10 (Good) | 22 (Moderate) | 13 (Good) | 13 (Moderate) | 24 (Moderate) | 20 (Moderate) | 12 (Good) | 13 (Moderate) | 14 (Moderate) | 12 (Good) | 14 (Moderate) | 14 (Moderate) | 26 (Moderate) | 30 (Moderate) | 15 (Moderate) | 16 (Moderate) | 16 (Moderate) | 13 (Good) | 15 (Moderate) |
| no2 | 9.2 (Good) | 14 (Good) | 14 (Good) | 10 (Good) | 23 (Good) | 15 (Good) | 15 (Good) | 13 (Good) | 11 (Good) | 9 (Good) | 9.6 (Good) | 7.8 (Good) | 11 (Good) | 13 (Good) | 13 (Good) | 29 (Good) | 16 (Good) | 18 (Good) | 20 (Good) | 18 (Good) | 16 (Good) | 14 (Good) | 12 (Good) | 10 (Good) | 12 (Good) | 15 (Good) | 20 (Good) | 21 (Good) | 17 (Good) | 22 (Good) | 20 (Good) | 16 (Good) | 15 (Good) |
| o3 | 64 (Good) | 64 (Good) | 54 (Good) | 55 (Good) | 25 (Good) | 30 (Good) | 21 (Good) | 27 (Good) | 37 (Good) | 52 (Good) | 62 (Good) | 71 (Moderate) | 58 (Good) | 64 (Good) | 54 (Good) | 30 (Good) | 42 (Good) | 31 (Good) | 21 (Good) | 39 (Good) | 49 (Good) | 73 (Moderate) | 75 (Moderate) | 67 (Good) | 79 (Moderate) | 72 (Moderate) | 58 (Good) | 41 (Good) | 34 (Good) | 30 (Good) | 30 (Good) | 37 (Good) | 42 (Good) |
8.2 (Good)
index_name_noPM10 20 (Moderate)
particulate matter (PM10) suspended dustSO2 5.9 (Good)
sulfur dioxide (SO2)NO2 30 (Good)
nitrogen dioxide (NO2)O3 36 (Good)
ozone (O3)PM2,5 6.1 (Good)
particulate matter (PM2.5) dustCeske Budejovice
| index | 2024-01-17 | 2024-01-16 | 2024-01-15 | 2024-01-14 | 2024-01-13 | 2024-01-12 | 2024-01-11 | 2024-01-10 |
|---|---|---|---|---|---|---|---|---|
| no2 | 22 | 8.5 | 7 | 7.4 | 15 | 29 | 43 | 36 |
| o3 | 36 | 57 | 56 | 50 | 37 | 28 | 15 | 18 |
| pm25 | 10 | 7.9 | 9.1 | 8.4 | 19 | 42 | 68 | 51 |
| no | 4.5 | 1.3 | 1.3 | 1.7 | 3.6 | 7.1 | 22 | 14 |
| so2 | 5.4 | 4.1 | 4.8 | 3.8 | 3.5 | 4.6 | 5.1 | 5 |
| pm10 | 13 | 9.2 | 9.7 | 8.1 | 20 | 43 | 79 | 66 |
CZ0CCBD
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 8.4 | 14 | 13 | 6.9 | 23 | 16 | 12 | 11 | 7.7 | 10 | 12 | 12 | 9.8 | 19 | 10 | 22 | 13 | 13 | 24 | 20 | 12 | 13 | 14 | 12 | 14 | 14 | 26 | 30 | 15 | 16 | 16 | 13 | 15 |
| pm10 | 11 | 19 | 18 | 8.7 | 27 | 19 | 15 | 15 | 12 | 13 | 15 | 16 | 11 | 23 | 12 | 28 | 15 | 15 | 29 | 26 | 15 | 16 | 16 | 15 | 16 | 17 | 27 | 32 | 15 | 15 | 14 | 11 | 22 |
| o3 | 64 | 64 | 54 | 55 | 25 | 30 | 21 | 27 | 37 | 52 | 62 | 71 | 58 | 64 | 54 | 30 | 42 | 31 | 21 | 39 | 49 | 73 | 75 | 67 | 79 | 72 | 58 | 41 | 34 | 30 | 30 | 37 | 42 |
| so2 | 3.5 | 9.8 | 9.1 | 4.2 | 4.2 | 4.8 | 5.6 | 4.6 | 5.7 | 2.3 | 4.1 | 4 | 2.9 | 3.3 | 2.5 | 2.9 | 7 | 2 | 1.8 | 2.1 | 1.6 | 1.5 | 1.9 | 1.4 | 1.6 | 1.6 | 2.8 | 3.7 | 1.9 | 2.3 | 5.4 | 5 | 5.1 |
| no2 | 9.2 | 14 | 14 | 10 | 23 | 15 | 15 | 13 | 11 | 9 | 9.6 | 7.8 | 11 | 13 | 13 | 29 | 16 | 18 | 20 | 18 | 16 | 14 | 12 | 10 | 12 | 15 | 20 | 21 | 17 | 22 | 20 | 16 | 15 |