Air Quality
Excellent
No health implications.
21
PM2.5
43
PM10
54
O3
0.6
CO
10
SO2
23
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Feb
91
Good
Fri
6 Feb
84
Good
Sat
7 Feb
48
Excellent
Sun
8 Feb
47
Excellent
Mon
9 Feb
80
Good
Tue
10 Feb
70
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