Air Quality
Severe
Healthy people will experience reduced endurance in activities and may also show noticeably strong symptoms. Other illnesses may be triggered in healthy people. Elders and the sick should remain indoors and avoid exercise. Healthy individuals should avoid outdoor activities.
PM2.5
PM10
O3
CO
SO2
NO2
Healthy people will experience reduced endurance in activities and may also show noticeably strong symptoms. Other illnesses may be triggered in healthy people. Elders and the sick should remain indoors and avoid exercise. Healthy individuals should avoid outdoor activities.
Advise
Children, seniors and the sick should stay indoors and avoid physical exertion. General population should avoid outdoor activities.
Air Quality
Today
20 Aug
Thu
21 Aug
Fri
22 Aug
Sat
23 Aug
Sun
24 Aug
Mon
25 Aug
Tue
26 Aug
Ulan Air quality rank
Air quality in the last 12 months (Ulan)
|
2025/06
|
25
|
33
|
33
|
25
|
25
|
33
|
25
|
23
|
23
|
22
|
24
|
32
|
49
|
50
|
29
|
30
|
41
|
35
|
24
|
31
|
24
|
19
|
23
|
28
|
34
|
33
|
26
|
39
|
44
|
40
|
|
|
2025/05
|
46
|
41
|
60
|
164
|
60
|
72
|
102
|
82
|
39
|
21
|
23
|
49
|
51
|
57
|
27
|
39
|
46
|
38
|
32
|
47
|
170
|
82
|
86
|
80
|
32
|
38
|
42
|
60
|
67
|
41
|
37
|
|
2025/04
|
108
|
102
|
75
|
54
|
65
|
68
|
84
|
69
|
58
|
47
|
47
|
32
|
21
|
32
|
48
|
74
|
77
|
91
|
63
|
142
|
123
|
83
|
53
|
34
|
40
|
31
|
95
|
44
|
53
|
41
|
|
|
2025/03
|
60
|
67
|
56
|
34
|
111
|
167
|
93
|
52
|
70
|
66
|
62
|
63
|
43
|
49
|
42
|
38
|
40
|
63
|
60
|
55
|
54
|
60
|
53
|
47
|
58
|
40
|
169
|
61
|
74
|
131
|
145
|
|
2025/02
|
27
|
45
|
31
|
29
|
32
|
35
|
35
|
36
|
30
|
30
|
47
|
45
|
33
|
33
|
45
|
32
|
26
|
45
|
54
|
46
|
37
|
48
|
53
|
53
|
47
|
28
|
32
|
36
|
|||
|
2025/01
|
45
|
33
|
36
|
38
|
26
|
31
|
42
|
46
|
38
|
63
|
42
|
27
|
26
|
31
|
25
|
22
|
35
|
42
|
34
|
37
|
41
|
40
|
43
|
67
|
118
|
54
|
41
|
37
|
31
|
29
|
25
|
|
2024/12
|
21
|
33
|
29
|
37
|
34
|
28
|
31
|
37
|
35
|
42
|
40
|
52
|
42
|
34
|
27
|
35
|
38
|
45
|
40
|
36
|
35
|
38
|
41
|
37
|
34
|
31
|
28
|
30
|
51
|
45
|
41
|
|
2024/11
|
32
|
28
|
34
|
33
|
30
|
26
|
34
|
35
|
52
|
54
|
46
|
40
|
35
|
42
|
54
|
44
|
37
|
31
|
29
|
30
|
47
|
29
|
33
|
49
|
46
|
34
|
24
|
21
|
33
|
27
|
|
|
2024/10
|
25
|
24
|
22
|
32
|
31
|
31
|
30
|
31
|
29
|
26
|
27
|
27
|
29
|
28
|
29
|
20
|
24
|
46
|
64
|
59
|
59
|
30
|
24
|
30
|
30
|
31
|
22
|
22
|
28
|
33
|
30
|
|
2024/09
|
24
|
24
|
27
|
46
|
31
|
24
|
19
|
26
|
63
|
27
|
18
|
74
|
18
|
20
|
23
|
32
|
26
|
20
|
49
|
25
|
26
|
24
|
22
|
33
|
39
|
29
|
25
|
24
|
40
|
35
|
|
|
2024/08
|
28
|
26
|
25
|
27
|
26
|
26
|
32
|
43
|
40
|
15
|
16
|
20
|
32
|
25
|
38
|
31
|
22
|
20
|
21
|
25
|
37
|
68
|
49
|
42
|
48
|
27
|
31
|
36
|
25
|
33
|
32
|
|
2024/07
|
20
|
20
|
64
|
52
|
49
|
39
|
40
|
69
|
49
|
26
|
27
|
24
|
19
|
21
|
22
|
23
|
17
|
27
|
48
|
146
|
86
|
50
|
38
|
31
|
32
|
30
|
26
|
21
|
22
|
22
|
20
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
*: primary pollution