Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
15
PM2.5
97
*
PM10
96
O3
0.4
CO
10
SO2
6
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
5 Feb
97
Good
Fri
6 Feb
76
Good
Sat
7 Feb
49
Excellent
Sun
8 Feb
50
Excellent
Mon
9 Feb
78
Good
Tue
10 Feb
64
Good
Wed
11 Feb
25
Excellent
Ulan Air quality rank
Air quality in the last 12 months (Ulan)
|
2025/12
|
28
|
35
|
30
|
29
|
28
|
27
|
29
|
32
|
35
|
46
|
39
|
149
|
34
|
33
|
34
|
36
|
26
|
30
|
36
|
38
|
30
|
42
|
55
|
41
|
37
|
32
|
25
|
30
|
25
|
29
|
30
|
|
2025/11
|
32
|
31
|
27
|
24
|
39
|
82
|
108
|
84
|
52
|
46
|
39
|
39
|
32
|
33
|
37
|
28
|
41
|
32
|
29
|
31
|
30
|
33
|
51
|
55
|
37
|
63
|
32
|
31
|
26
|
36
|
|
|
2025/10
|
32
|
25
|
31
|
33
|
52
|
32
|
33
|
28
|
27
|
24
|
21
|
22
|
24
|
31
|
38
|
39
|
40
|
39
|
40
|
31
|
30
|
37
|
36
|
31
|
38
|
32
|
25
|
24
|
31
|
32
|
31
|
|
2025/09
|
32
|
41
|
48
|
39
|
50
|
54
|
42
|
43
|
42
|
39
|
40
|
46
|
50
|
40
|
72
|
53
|
36
|
36
|
32
|
44
|
38
|
90
|
47
|
35
|
35
|
43
|
49
|
35
|
35
|
35
|
|
|
2025/08
|
41
|
34
|
33
|
38
|
29
|
19
|
29
|
29
|
25
|
30
|
46
|
39
|
31
|
30
|
30
|
29
|
37
|
20
|
69
|
100
|
19
|
21
|
25
|
30
|
29
|
36
|
24
|
16
|
26
|
32
|
28
|
|
2025/07
|
33
|
28
|
29
|
23
|
22
|
32
|
63
|
55
|
37
|
42
|
36
|
31
|
44
|
45
|
37
|
25
|
24
|
29
|
20
|
19
|
22
|
24
|
27
|
19
|
22
|
23
|
24
|
24
|
33
|
61
|
75
|
|
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
|
|
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
Air quality source: CNEMC
*: primary pollution