Air Quality
Excellent
No health implications.
6
PM2.5
13
PM10
51
O3
0.6
CO
3
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Feb
131
Light
Tue
17 Feb
220
Heavy
Wed
18 Feb
129
Light
Thu
19 Feb
92
Good
Fri
20 Feb
84
Good
Sat
21 Feb
83
Good
Sun
22 Feb
31
Excellent
Air quality in the last 12 months (Changning)
|
2026/01
|
31
|
56
|
70
|
78
|
52
|
74
|
72
|
63
|
64
|
92
|
102
|
97
|
106
|
88
|
93
|
116
|
113
|
110
|
46
|
20
|
54
|
61
|
66
|
52
|
76
|
57
|
111
|
85
|
58
|
34
|
39
|
|
2025/12
|
75
|
112
|
93
|
77
|
80
|
86
|
97
|
107
|
113
|
115
|
97
|
113
|
23
|
45
|
58
|
65
|
78
|
126
|
86
|
66
|
102
|
105
|
66
|
41
|
56
|
61
|
69
|
77
|
92
|
114
|
158
|
|
2025/11
|
46
|
41
|
23
|
21
|
28
|
29
|
46
|
14
|
9
|
13
|
34
|
53
|
41
|
48
|
53
|
59
|
64
|
27
|
34
|
43
|
51
|
60
|
71
|
64
|
52
|
61
|
71
|
80
|
72
|
68
|
|
|
2025/10
|
58
|
44
|
31
|
49
|
48
|
22
|
34
|
49
|
39
|
38
|
44
|
68
|
88
|
47
|
58
|
55
|
50
|
23
|
9
|
8
|
10
|
24
|
36
|
41
|
51
|
63
|
66
|
67
|
81
|
93
|
57
|
|
2025/09
|
21
|
24
|
26
|
31
|
37
|
34
|
41
|
34
|
19
|
21
|
19
|
21
|
26
|
34
|
34
|
33
|
25
|
39
|
38
|
23
|
24
|
18
|
24
|
10
|
12
|
20
|
32
|
44
|
51
|
57
|
|
|
2025/08
|
29
|
27
|
17
|
19
|
21
|
13
|
13
|
18
|
26
|
29
|
30
|
32
|
33
|
25
|
12
|
18
|
22
|
23
|
13
|
16
|
20
|
19
|
25
|
26
|
23
|
19
|
29
|
28
|
26
|
21
|
23
|
|
2025/07
|
14
|
14
|
17
|
23
|
33
|
38
|
40
|
33
|
34
|
22
|
24
|
26
|
26
|
28
|
23
|
24
|
26
|
39
|
33
|
31
|
22
|
13
|
15
|
23
|
24
|
28
|
23
|
21
|
24
|
24
|
22
|
|
2025/06
|
19
|
20
|
40
|
45
|
45
|
38
|
29
|
27
|
36
|
39
|
37
|
26
|
32
|
17
|
14
|
23
|
11
|
11
|
16
|
21
|
21
|
15
|
25
|
18
|
31
|
24
|
14
|
15
|
16
|
16
|
|
|
2025/05
|
49
|
57
|
55
|
50
|
34
|
48
|
65
|
43
|
30
|
53
|
51
|
53
|
51
|
45
|
60
|
28
|
27
|
22
|
23
|
19
|
21
|
23
|
26
|
53
|
54
|
47
|
44
|
17
|
20
|
29
|
16
|
|
2025/04
|
58
|
59
|
62
|
105
|
107
|
87
|
76
|
68
|
67
|
45
|
52
|
221
|
192
|
132
|
89
|
75
|
82
|
67
|
31
|
26
|
35
|
33
|
53
|
34
|
30
|
39
|
25
|
39
|
54
|
52
|
|
|
2025/03
|
35
|
34
|
22
|
20
|
29
|
37
|
54
|
49
|
51
|
45
|
49
|
49
|
51
|
27
|
20
|
42
|
42
|
40
|
46
|
51
|
54
|
59
|
71
|
78
|
75
|
67
|
69
|
64
|
46
|
22
|
44
|
|
2025/02
|
29
|
24
|
45
|
60
|
67
|
68
|
56
|
62
|
48
|
56
|
65
|
68
|
89
|
106
|
64
|
38
|
45
|
39
|
31
|
19
|
66
|
31
|
34
|
74
|
90
|
87
|
46
|
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