Air Quality
Excellent
No health implications.
9
PM2.5
18
PM10
63
O3
0.3
CO
3
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Dec
152
Moderate
Sat
20 Dec
142
Light
Sun
21 Dec
44
Excellent
Mon
22 Dec
63
Good
Tue
23 Dec
82
Good
Wed
24 Dec
68
Good
Thu
25 Dec
40
Excellent
Air quality in the last 12 months (Mentougou)
|
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
|
|
2025/04
|
47
|
35
|
74
|
77
|
35
|
75
|
79
|
58
|
65
|
82
|
119
|
144
|
66
|
61
|
62
|
102
|
73
|
34
|
42
|
65
|
73
|
33
|
60
|
48
|
68
|
102
|
32
|
61
|
60
|
39
|
|
|
2025/03
|
196
|
83
|
40
|
55
|
70
|
24
|
71
|
108
|
134
|
145
|
210
|
74
|
109
|
74
|
57
|
40
|
49
|
47
|
42
|
54
|
40
|
66
|
150
|
118
|
84
|
82
|
50
|
35
|
44
|
63
|
70
|
|
2025/02
|
102
|
55
|
11
|
19
|
25
|
57
|
22
|
15
|
25
|
54
|
99
|
28
|
49
|
55
|
74
|
26
|
26
|
35
|
28
|
20
|
26
|
21
|
19
|
40
|
41
|
48
|
100
|
111
|
|||
|
2025/01
|
48
|
29
|
41
|
48
|
49
|
17
|
16
|
15
|
17
|
24
|
43
|
34
|
49
|
26
|
27
|
46
|
58
|
69
|
33
|
52
|
42
|
56
|
74
|
104
|
138
|
108
|
26
|
27
|
73
|
71
|
75
|
|
2024/12
|
48
|
17
|
40
|
38
|
25
|
25
|
14
|
35
|
48
|
45
|
55
|
70
|
25
|
32
|
40
|
38
|
26
|
18
|
39
|
41
|
18
|
34
|
48
|
54
|
57
|
28
|
22
|
45
|
58
|
77
|
48
|
|
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