Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
43
PM2.5
77
PM10
209
O3
0.5
CO
7
SO2
19
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
12 May
113
Light
Tue
13 May
123
Light
Wed
14 May
66
Good
Thu
15 May
85
Good
Fri
16 May
113
Light
Sat
17 May
74
Good
Sun
18 May
35
Excellent
Air quality in the last 12 months (Mentougou)
|
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
|
|
2024/11
|
139
|
129
|
65
|
13
|
36
|
53
|
96
|
160
|
192
|
131
|
89
|
96
|
88
|
46
|
66
|
43
|
31
|
48
|
63
|
64
|
21
|
37
|
59
|
94
|
39
|
12
|
20
|
22
|
36
|
48
|
|
|
2024/10
|
9
|
19
|
32
|
67
|
83
|
88
|
27
|
27
|
72
|
12
|
43
|
84
|
126
|
97
|
37
|
39
|
55
|
36
|
12
|
33
|
51
|
23
|
37
|
48
|
143
|
207
|
14
|
39
|
84
|
83
|
185
|
|
2024/09
|
23
|
13
|
32
|
62
|
11
|
16
|
24
|
31
|
54
|
12
|
19
|
22
|
34
|
19
|
35
|
44
|
27
|
46
|
55
|
26
|
7
|
16
|
32
|
57
|
30
|
42
|
54
|
55
|
74
|
8
|
|
|
2024/08
|
24
|
33
|
31
|
29
|
14
|
34
|
51
|
38
|
46
|
19
|
19
|
9
|
20
|
30
|
44
|
46
|
36
|
20
|
22
|
12
|
18
|
26
|
36
|
30
|
30
|
10
|
17
|
26
|
36
|
45
|
60
|
|
2024/07
|
23
|
36
|
39
|
61
|
70
|
33
|
37
|
33
|
61
|
70
|
75
|
43
|
51
|
68
|
57
|
37
|
15
|
27
|
45
|
33
|
53
|
32
|
57
|
46
|
14
|
23
|
32
|
26
|
34
|
12
|
20
|
|
2024/06
|
42
|
49
|
55
|
66
|
62
|
64
|
52
|
47
|
33
|
31
|
25
|
49
|
54
|
33
|
23
|
61
|
67
|
68
|
68
|
61
|
56
|
81
|
139
|
19
|
28
|
63
|
64
|
57
|
60
|
41
|
|
|
2024/05
|
41
|
65
|
62
|
73
|
89
|
64
|
57
|
65
|
74
|
114
|
95
|
39
|
51
|
60
|
34
|
64
|
69
|
82
|
69
|
30
|
52
|
71
|
83
|
43
|
24
|
19
|
39
|
56
|
72
|
45
|
18
|
|
2024/04
|
78
|
89
|
80
|
72
|
72
|
79
|
40
|
81
|
58
|
65
|
98
|
154
|
83
|
64
|
93
|
60
|
87
|
84
|
67
|
54
|
84
|
86
|
21
|
52
|
89
|
110
|
89
|
27
|
24
|
20
|
|
|
2024/03
|
38
|
82
|
60
|
57
|
76
|
56
|
43
|
28
|
58
|
102
|
65
|
56
|
59
|
57
|
106
|
112
|
45
|
110
|
80
|
60
|
92
|
73
|
71
|
82
|
70
|
107
|
150
|
224
|
110
|
47
|
85
|
|
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