Air Quality
Excellent
No health implications.
11
PM2.5
19
PM10
17
O3
0.4
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Aug
34
Excellent
Thu
21 Aug
34
Excellent
Fri
22 Aug
32
Excellent
Sat
23 Aug
34
Excellent
Sun
24 Aug
37
Excellent
Mon
25 Aug
36
Excellent
Tue
26 Aug
18
Excellent
Air quality in the last 12 months (Changning)
|
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
|
|
|
2024/08
|
24
|
19
|
16
|
17
|
19
|
19
|
20
|
17
|
19
|
21
|
16
|
29
|
37
|
47
|
44
|
26
|
29
|
27
|
24
|
25
|
22
|
25
|
29
|
21
|
21
|
27
|
27
|
25
|
27
|
27
|
24
|
|
2024/07
|
16
|
16
|
15
|
16
|
18
|
20
|
17
|
18
|
17
|
18
|
15
|
16
|
19
|
19
|
20
|
18
|
25
|
25
|
21
|
21
|
16
|
18
|
15
|
17
|
22
|
22
|
23
|
22
|
21
|
18
|
23
|
|
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