Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
62
*
PM2.5
92
PM10
85
O3
0.7
CO
2
SO2
18
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
16 May
54
Good
Sun
17 May
47
Excellent
Mon
18 May
47
Excellent
Tue
19 May
55
Good
Wed
20 May
56
Good
Thu
21 May
35
Excellent
Fri
22 May
23
Excellent
Air quality in the last 12 months (Mentougou)
|
2026/04
|
49
|
87
|
90
|
61
|
42
|
25
|
37
|
84
|
58
|
42
|
53
|
76
|
67
|
87
|
107
|
92
|
49
|
98
|
83
|
90
|
67
|
68
|
64
|
67
|
62
|
53
|
36
|
30
|
27
|
49
|
|
|
2026/03
|
94
|
118
|
105
|
56
|
70
|
30
|
67
|
83
|
28
|
92
|
55
|
97
|
101
|
51
|
71
|
59
|
146
|
34
|
57
|
64
|
74
|
65
|
115
|
133
|
176
|
158
|
40
|
81
|
74
|
32
|
60
|
|
2026/02
|
47
|
36
|
54
|
70
|
25
|
19
|
20
|
39
|
71
|
70
|
39
|
63
|
77
|
52
|
27
|
29
|
41
|
32
|
55
|
70
|
156
|
39
|
37
|
61
|
103
|
84
|
41
|
67
|
|||
|
2026/01
|
37
|
42
|
59
|
55
|
48
|
40
|
28
|
60
|
71
|
37
|
36
|
50
|
42
|
62
|
94
|
49
|
28
|
38
|
15
|
22
|
25
|
38
|
46
|
43
|
40
|
55
|
38
|
63
|
75
|
111
|
101
|
|
2025/12
|
24
|
21
|
38
|
30
|
51
|
86
|
45
|
38
|
55
|
72
|
49
|
51
|
33
|
45
|
59
|
55
|
94
|
152
|
118
|
17
|
38
|
69
|
41
|
21
|
27
|
49
|
66
|
71
|
31
|
24
|
26
|
|
2025/11
|
17
|
26
|
60
|
72
|
153
|
178
|
64
|
56
|
34
|
43
|
63
|
70
|
27
|
50
|
69
|
27
|
18
|
25
|
48
|
32
|
52
|
57
|
82
|
47
|
38
|
63
|
32
|
59
|
91
|
89
|
|
|
2025/10
|
40
|
47
|
37
|
44
|
49
|
21
|
43
|
19
|
7
|
11
|
17
|
35
|
46
|
45
|
70
|
65
|
18
|
14
|
16
|
25
|
30
|
47
|
65
|
83
|
116
|
18
|
39
|
86
|
166
|
153
|
69
|
|
2025/09
|
21
|
38
|
45
|
46
|
42
|
23
|
27
|
31
|
48
|
43
|
52
|
57
|
48
|
27
|
26
|
20
|
16
|
21
|
32
|
38
|
41
|
33
|
45
|
46
|
35
|
44
|
55
|
37
|
34
|
39
|
|
|
2025/08
|
45
|
55
|
24
|
35
|
25
|
37
|
26
|
35
|
15
|
25
|
42
|
46
|
23
|
34
|
47
|
22
|
35
|
41
|
20
|
18
|
28
|
26
|
15
|
18
|
25
|
24
|
17
|
15
|
31
|
27
|
27
|
|
2025/07
|
36
|
35
|
23
|
26
|
13
|
14
|
40
|
30
|
45
|
23
|
51
|
49
|
18
|
38
|
51
|
37
|
11
|
33
|
65
|
18
|
26
|
43
|
44
|
31
|
23
|
47
|
48
|
25
|
7
|
16
|
34
|
|
2025/06
|
75
|
21
|
13
|
23
|
53
|
37
|
29
|
55
|
46
|
28
|
58
|
78
|
65
|
52
|
11
|
15
|
33
|
60
|
35
|
28
|
18
|
31
|
51
|
46
|
57
|
62
|
79
|
51
|
56
|
46
|
|
|
2025/05
|
33
|
36
|
21
|
50
|
52
|
36
|
70
|
98
|
30
|
44
|
55
|
74
|
76
|
28
|
48
|
75
|
72
|
40
|
57
|
89
|
82
|
64
|
47
|
53
|
54
|
48
|
50
|
60
|
67
|
72
|
88
|
|
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