Air Quality
Excellent
No health implications.
9
PM2.5
12
PM10
56
O3
0.4
CO
8
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Mar
34
Excellent
Tue
18 Mar
43
Excellent
Wed
19 Mar
58
Good
Thu
20 Mar
69
Good
Fri
21 Mar
73
Good
Sat
22 Mar
83
Good
Sun
23 Mar
21
Excellent
Air quality in the last 12 months (Changning)
|
2025/02
|
39
|
36
|
32
|
43
|
32
|
25
|
23
|
31
|
45
|
55
|
73
|
60
|
45
|
53
|
60
|
69
|
77
|
71
|
96
|
49
|
58
|
39
|
48
|
27
|
36
|
38
|
75
|
89
|
|||
|
2025/01
|
115
|
151
|
146
|
175
|
143
|
128
|
107
|
54
|
54
|
54
|
41
|
57
|
79
|
90
|
84
|
91
|
101
|
62
|
58
|
89
|
145
|
136
|
131
|
86
|
34
|
46
|
63
|
76
|
155
|
115
|
80
|
|
2024/12
|
102
|
144
|
105
|
123
|
61
|
50
|
40
|
31
|
47
|
55
|
58
|
59
|
45
|
52
|
53
|
71
|
110
|
124
|
96
|
95
|
115
|
90
|
59
|
86
|
72
|
64
|
96
|
98
|
88
|
60
|
64
|
|
2024/11
|
34
|
28
|
66
|
51
|
36
|
55
|
55
|
54
|
70
|
72
|
50
|
51
|
38
|
48
|
71
|
51
|
18
|
24
|
25
|
28
|
43
|
59
|
70
|
43
|
18
|
25
|
38
|
45
|
52
|
63
|
|
|
2024/10
|
15
|
26
|
25
|
36
|
46
|
44
|
42
|
48
|
50
|
53
|
34
|
21
|
21
|
32
|
45
|
78
|
26
|
40
|
34
|
27
|
34
|
18
|
30
|
69
|
55
|
34
|
25
|
37
|
75
|
81
|
63
|
|
2024/09
|
34
|
34
|
34
|
28
|
26
|
31
|
37
|
23
|
26
|
38
|
28
|
33
|
51
|
52
|
49
|
48
|
28
|
32
|
40
|
55
|
26
|
44
|
57
|
72
|
85
|
70
|
71
|
83
|
100
|
7
|
|
|
2024/08
|
40
|
34
|
40
|
17
|
30
|
30
|
30
|
35
|
40
|
25
|
64
|
69
|
61
|
56
|
55
|
31
|
43
|
48
|
48
|
50
|
58
|
59
|
57
|
45
|
36
|
40
|
48
|
46
|
56
|
59
|
57
|
|
2024/07
|
25
|
25
|
31
|
25
|
29
|
35
|
47
|
38
|
13
|
13
|
16
|
25
|
38
|
11
|
26
|
36
|
39
|
18
|
29
|
28
|
32
|
25
|
37
|
38
|
26
|
49
|
47
|
26
|
24
|
27
|
42
|
|
2024/06
|
54
|
33
|
34
|
24
|
29
|
41
|
18
|
21
|
31
|
27
|
25
|
25
|
40
|
43
|
42
|
58
|
31
|
43
|
30
|
26
|
21
|
20
|
27
|
30
|
33
|
37
|
14
|
29
|
21
|
35
|
|
|
2024/05
|
33
|
37
|
27
|
14
|
27
|
58
|
66
|
60
|
30
|
47
|
37
|
37
|
36
|
50
|
52
|
43
|
52
|
35
|
36
|
31
|
28
|
35
|
38
|
47
|
51
|
18
|
30
|
30
|
19
|
23
|
38
|
|
2024/04
|
55
|
55
|
46
|
40
|
39
|
24
|
20
|
18
|
36
|
34
|
34
|
49
|
56
|
67
|
68
|
36
|
27
|
44
|
27
|
49
|
57
|
61
|
38
|
32
|
39
|
52
|
36
|
53
|
32
|
11
|
|
|
2024/03
|
84
|
69
|
82
|
90
|
78
|
64
|
61
|
60
|
70
|
103
|
56
|
78
|
92
|
71
|
79
|
73
|
104
|
40
|
52
|
59
|
70
|
82
|
81
|
81
|
21
|
47
|
54
|
36
|
56
|
64
|
58
|
|
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