Air Quality
Excellent
No health implications.
5
PM2.5
18
PM10
46
O3
0.3
CO
6
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Dec
72
Good
Sun
28 Dec
92
Good
Mon
29 Dec
107
Light
Tue
30 Dec
83
Good
Wed
31 Dec
40
Excellent
Thu
1 Jan
50
Excellent
Fri
2 Jan
39
Excellent
Air quality in the last 12 months (Changning)
|
2025/11
|
124
|
115
|
14
|
23
|
31
|
38
|
30
|
40
|
27
|
40
|
21
|
35
|
29
|
66
|
45
|
33
|
35
|
36
|
53
|
61
|
78
|
123
|
116
|
105
|
85
|
56
|
146
|
143
|
97
|
79
|
|
|
2025/10
|
46
|
24
|
40
|
27
|
26
|
32
|
34
|
15
|
20
|
33
|
39
|
42
|
68
|
42
|
29
|
29
|
19
|
21
|
28
|
31
|
29
|
28
|
31
|
31
|
32
|
38
|
44
|
18
|
21
|
25
|
30
|
|
2025/09
|
31
|
28
|
25
|
29
|
28
|
29
|
49
|
22
|
25
|
25
|
34
|
39
|
41
|
39
|
36
|
26
|
31
|
25
|
25
|
24
|
22
|
22
|
25
|
21
|
22
|
25
|
29
|
38
|
23
|
30
|
|
|
2025/08
|
38
|
37
|
31
|
35
|
35
|
23
|
24
|
29
|
39
|
40
|
41
|
36
|
25
|
23
|
19
|
27
|
28
|
16
|
21
|
29
|
46
|
42
|
39
|
30
|
28
|
35
|
16
|
16
|
18
|
16
|
25
|
|
2025/07
|
19
|
25
|
29
|
32
|
30
|
23
|
14
|
17
|
20
|
40
|
22
|
18
|
22
|
44
|
43
|
49
|
43
|
27
|
17
|
24
|
22
|
23
|
22
|
23
|
25
|
17
|
17
|
24
|
22
|
11
|
21
|
|
2025/06
|
17
|
17
|
35
|
63
|
42
|
41
|
40
|
21
|
24
|
29
|
29
|
18
|
15
|
34
|
16
|
25
|
53
|
49
|
39
|
24
|
26
|
13
|
11
|
26
|
42
|
48
|
33
|
38
|
24
|
16
|
|
|
2025/05
|
55
|
48
|
49
|
23
|
37
|
79
|
61
|
48
|
21
|
48
|
37
|
48
|
42
|
36
|
44
|
49
|
58
|
62
|
43
|
44
|
35
|
35
|
13
|
46
|
43
|
38
|
33
|
32
|
36
|
54
|
51
|
|
2025/04
|
44
|
64
|
42
|
38
|
66
|
66
|
61
|
66
|
74
|
83
|
67
|
77
|
94
|
76
|
55
|
61
|
66
|
61
|
59
|
53
|
42
|
62
|
63
|
86
|
48
|
38
|
40
|
50
|
40
|
46
|
|
|
2025/03
|
43
|
55
|
27
|
22
|
20
|
37
|
46
|
63
|
37
|
44
|
56
|
33
|
37
|
40
|
22
|
45
|
48
|
41
|
39
|
56
|
60
|
63
|
67
|
60
|
79
|
76
|
68
|
46
|
58
|
30
|
38
|
|
2025/02
|
27
|
59
|
69
|
64
|
53
|
37
|
50
|
41
|
46
|
53
|
30
|
77
|
39
|
34
|
65
|
115
|
60
|
45
|
47
|
29
|
34
|
60
|
58
|
73
|
85
|
134
|
137
|
55
|
|||
|
2025/01
|
53
|
42
|
56
|
35
|
65
|
95
|
65
|
67
|
31
|
41
|
58
|
71
|
89
|
102
|
38
|
58
|
70
|
72
|
98
|
156
|
112
|
31
|
37
|
37
|
33
|
44
|
55
|
44
|
88
|
46
|
34
|
|
2024/12
|
59
|
79
|
77
|
31
|
51
|
135
|
131
|
30
|
32
|
40
|
55
|
48
|
63
|
74
|
64
|
66
|
75
|
65
|
39
|
51
|
85
|
49
|
37
|
46
|
60
|
125
|
44
|
54
|
70
|
65
|
75
|
|
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