Air Quality
Excellent
No health implications.
17
PM2.5
23
PM10
80
O3
0.7
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
62
Good
Mon
21 Apr
63
Good
Tue
22 Apr
62
Good
Wed
23 Apr
67
Good
Thu
24 Apr
62
Good
Fri
25 Apr
64
Good
Sat
26 Apr
30
Excellent
Air quality in the last 12 months (Changning)
|
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
|
|||
|
2025/01
|
127
|
113
|
136
|
156
|
169
|
108
|
91
|
94
|
59
|
58
|
61
|
73
|
69
|
65
|
89
|
67
|
75
|
75
|
94
|
87
|
92
|
96
|
125
|
230
|
51
|
30
|
57
|
72
|
230
|
121
|
69
|
|
2024/12
|
61
|
66
|
76
|
131
|
57
|
42
|
45
|
59
|
107
|
79
|
42
|
69
|
86
|
67
|
58
|
64
|
73
|
74
|
95
|
116
|
116
|
106
|
88
|
103
|
119
|
118
|
113
|
126
|
96
|
118
|
111
|
|
2024/11
|
58
|
86
|
74
|
71
|
78
|
64
|
58
|
53
|
60
|
72
|
59
|
60
|
64
|
72
|
60
|
63
|
26
|
11
|
15
|
29
|
46
|
50
|
57
|
63
|
39
|
27
|
37
|
47
|
48
|
59
|
|
|
2024/10
|
32
|
44
|
57
|
54
|
52
|
64
|
66
|
53
|
49
|
56
|
62
|
67
|
114
|
85
|
36
|
31
|
46
|
37
|
22
|
28
|
34
|
21
|
32
|
43
|
49
|
58
|
45
|
54
|
64
|
54
|
52
|
|
2024/09
|
45
|
47
|
51
|
47
|
49
|
44
|
30
|
31
|
37
|
35
|
41
|
45
|
38
|
42
|
41
|
42
|
50
|
51
|
49
|
45
|
36
|
31
|
41
|
46
|
59
|
57
|
50
|
53
|
53
|
52
|
|
|
2024/08
|
15
|
21
|
23
|
28
|
30
|
30
|
28
|
29
|
30
|
31
|
31
|
26
|
23
|
31
|
33
|
34
|
40
|
59
|
33
|
42
|
40
|
20
|
24
|
23
|
36
|
35
|
40
|
29
|
37
|
42
|
52
|
|
2024/07
|
24
|
17
|
25
|
20
|
21
|
22
|
23
|
23
|
24
|
26
|
24
|
25
|
24
|
21
|
26
|
20
|
15
|
17
|
18
|
21
|
21
|
22
|
21
|
27
|
42
|
35
|
25
|
13
|
14
|
14
|
16
|
|
2024/06
|
19
|
20
|
45
|
23
|
17
|
31
|
35
|
41
|
42
|
29
|
18
|
22
|
18
|
20
|
19
|
22
|
14
|
16
|
17
|
24
|
23
|
24
|
25
|
21
|
12
|
20
|
28
|
24
|
21
|
21
|
|
|
2024/05
|
21
|
34
|
29
|
15
|
27
|
49
|
83
|
69
|
65
|
63
|
32
|
59
|
75
|
64
|
62
|
64
|
56
|
43
|
22
|
20
|
38
|
44
|
36
|
33
|
33
|
24
|
16
|
34
|
28
|
23
|
20
|
|
2024/04
|
40
|
49
|
27
|
29
|
22
|
26
|
33
|
40
|
44
|
44
|
51
|
48
|
42
|
53
|
54
|
46
|
22
|
35
|
24
|
23
|
33
|
48
|
42
|
48
|
33
|
30
|
37
|
49
|
44
|
12
|
|
|
2024/03
|
88
|
62
|
52
|
47
|
33
|
93
|
74
|
60
|
53
|
55
|
42
|
48
|
49
|
39
|
42
|
38
|
44
|
17
|
42
|
59
|
72
|
42
|
26
|
33
|
28
|
27
|
42
|
27
|
36
|
41
|
34
|
|
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