Air Quality
Excellent
No health implications.
7
PM2.5
13
PM10
51
O3
0.4
CO
9
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 Sep
37
Excellent
Sun
7 Sep
34
Excellent
Mon
8 Sep
32
Excellent
Tue
9 Sep
31
Excellent
Wed
10 Sep
34
Excellent
Thu
11 Sep
35
Excellent
Fri
12 Sep
23
Excellent
Air quality in the last 12 months (Changning)
|
2025/08
|
19
|
18
|
15
|
15
|
20
|
23
|
19
|
15
|
15
|
15
|
18
|
18
|
18
|
20
|
23
|
24
|
18
|
19
|
21
|
18
|
15
|
16
|
16
|
17
|
18
|
22
|
17
|
19
|
18
|
23
|
22
|
|
2025/07
|
19
|
18
|
16
|
15
|
13
|
16
|
16
|
14
|
17
|
17
|
19
|
22
|
26
|
24
|
19
|
21
|
22
|
22
|
24
|
21
|
20
|
22
|
23
|
18
|
16
|
16
|
18
|
20
|
24
|
20
|
17
|
|
2025/06
|
17
|
15
|
25
|
45
|
38
|
35
|
29
|
28
|
25
|
19
|
29
|
36
|
41
|
33
|
22
|
21
|
15
|
13
|
14
|
18
|
20
|
15
|
16
|
15
|
15
|
14
|
17
|
18
|
18
|
17
|
|
|
2025/05
|
31
|
27
|
29
|
20
|
26
|
33
|
30
|
36
|
37
|
46
|
39
|
42
|
40
|
39
|
37
|
37
|
34
|
27
|
35
|
31
|
36
|
34
|
40
|
33
|
16
|
18
|
18
|
17
|
15
|
18
|
15
|
|
2025/04
|
101
|
84
|
80
|
85
|
78
|
85
|
77
|
80
|
76
|
72
|
58
|
50
|
26
|
36
|
44
|
31
|
25
|
28
|
30
|
31
|
34
|
35
|
53
|
56
|
65
|
66
|
68
|
64
|
42
|
43
|
|
|
2025/03
|
46
|
56
|
45
|
47
|
53
|
57
|
68
|
69
|
66
|
53
|
60
|
73
|
87
|
65
|
58
|
52
|
58
|
71
|
48
|
45
|
65
|
63
|
59
|
48
|
42
|
40
|
46
|
81
|
110
|
89
|
98
|
|
2025/02
|
62
|
61
|
51
|
49
|
54
|
61
|
55
|
39
|
43
|
41
|
36
|
38
|
46
|
58
|
49
|
56
|
46
|
47
|
57
|
50
|
51
|
48
|
50
|
50
|
45
|
37
|
34
|
44
|
|||
|
2025/01
|
32
|
32
|
32
|
32
|
37
|
36
|
28
|
32
|
28
|
36
|
38
|
39
|
35
|
37
|
44
|
42
|
40
|
37
|
34
|
30
|
32
|
39
|
38
|
32
|
36
|
49
|
30
|
51
|
88
|
40
|
46
|
|
2024/12
|
27
|
24
|
23
|
26
|
24
|
27
|
28
|
32
|
28
|
30
|
43
|
43
|
33
|
31
|
33
|
32
|
32
|
29
|
23
|
23
|
28
|
21
|
23
|
25
|
27
|
36
|
46
|
38
|
26
|
24
|
29
|
|
2024/11
|
35
|
36
|
29
|
29
|
26
|
26
|
15
|
14
|
20
|
24
|
22
|
21
|
22
|
24
|
26
|
28
|
28
|
27
|
28
|
25
|
23
|
20
|
23
|
25
|
25
|
22
|
23
|
24
|
27
|
24
|
|
|
2024/10
|
18
|
15
|
21
|
16
|
15
|
19
|
22
|
19
|
23
|
23
|
26
|
30
|
30
|
32
|
36
|
27
|
25
|
32
|
37
|
36
|
27
|
26
|
23
|
23
|
24
|
24
|
29
|
37
|
33
|
28
|
28
|
|
2024/09
|
23
|
24
|
23
|
23
|
20
|
25
|
33
|
34
|
26
|
18
|
18
|
21
|
24
|
21
|
26
|
29
|
22
|
25
|
31
|
36
|
36
|
29
|
26
|
28
|
33
|
29
|
23
|
20
|
17
|
21
|
|
|
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