Air Quality
Excellent
No health implications.
10
PM2.5
27
PM10
68
O3
0.5
CO
10
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Sep
62
Good
Sun
13 Sep
63
Good
Mon
14 Sep
69
Good
Tue
15 Sep
63
Good
Wed
16 Sep
68
Good
Thu
17 Sep
70
Good
Fri
18 Sep
49
Excellent
Air quality in the last 12 months (Ulan)
|
2026/08
|
42
|
40
|
39
|
39
|
37
|
39
|
43
|
42
|
38
|
36
|
34
|
36
|
40
|
36
|
40
|
39
|
38
|
40
|
37
|
39
|
35
|
36
|
35
|
32
|
45
|
97
|
53
|
36
|
37
|
35
|
36
|
|
2026/07
|
39
|
38
|
38
|
38
|
39
|
37
|
36
|
33
|
40
|
36
|
36
|
33
|
27
|
29
|
29
|
33
|
52
|
39
|
38
|
38
|
38
|
36
|
38
|
39
|
38
|
36
|
40
|
38
|
34
|
33
|
37
|
|
2026/06
|
35
|
51
|
58
|
50
|
46
|
57
|
55
|
49
|
38
|
34
|
33
|
36
|
36
|
39
|
37
|
65
|
37
|
32
|
35
|
36
|
39
|
35
|
37
|
40
|
34
|
36
|
42
|
40
|
39
|
54
|
|
|
2026/05
|
56
|
45
|
37
|
36
|
41
|
37
|
34
|
32
|
38
|
44
|
45
|
37
|
92
|
62
|
38
|
42
|
42
|
40
|
46
|
54
|
65
|
56
|
52
|
49
|
67
|
48
|
34
|
32
|
37
|
37
|
37
|
|
2026/04
|
40
|
62
|
81
|
44
|
40
|
49
|
50
|
39
|
39
|
42
|
39
|
39
|
38
|
44
|
54
|
48
|
37
|
40
|
58
|
67
|
79
|
90
|
75
|
49
|
37
|
39
|
40
|
41
|
39
|
39
|
|
|
2026/03
|
57
|
76
|
48
|
63
|
54
|
36
|
40
|
45
|
33
|
29
|
49
|
266
|
211
|
75
|
53
|
44
|
61
|
56
|
55
|
56
|
40
|
60
|
47
|
40
|
44
|
49
|
58
|
44
|
39
|
50
|
42
|
|
2026/02
|
39
|
40
|
35
|
25
|
47
|
73
|
47
|
39
|
95
|
56
|
55
|
42
|
30
|
26
|
47
|
41
|
51
|
35
|
23
|
25
|
71
|
42
|
43
|
49
|
46
|
51
|
51
|
45
|
|||
|
2026/01
|
34
|
34
|
33
|
29
|
30
|
23
|
24
|
25
|
26
|
23
|
22
|
22
|
64
|
147
|
48
|
37
|
32
|
47
|
60
|
47
|
41
|
42
|
32
|
72
|
248
|
107
|
78
|
52
|
157
|
71
|
45
|
|
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
|
|
|
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