Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
14
PM2.5
59
*
PM10
128
O3
0.3
CO
13
SO2
1
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 May
70
Good
Wed
20 May
84
Good
Thu
21 May
77
Good
Fri
22 May
75
Good
Sat
23 May
73
Good
Sun
24 May
75
Good
Mon
25 May
50
Excellent
Air quality in the last 12 months (Ulan)
|
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
|
|
|
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
|
|
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