Air Quality
Excellent
No health implications.
7
PM2.5
13
PM10
59
O3
0.4
CO
7
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 May
52
Good
Sun
1 Jun
43
Excellent
Mon
2 Jun
59
Good
Tue
3 Jun
61
Good
Wed
4 Jun
56
Good
Thu
5 Jun
59
Good
Fri
6 Jun
35
Excellent
Air quality in the last 12 months (Changning)
|
2025/04
|
58
|
59
|
62
|
105
|
107
|
87
|
76
|
68
|
67
|
45
|
52
|
221
|
192
|
132
|
89
|
75
|
82
|
67
|
31
|
26
|
35
|
33
|
53
|
34
|
30
|
39
|
25
|
39
|
54
|
52
|
|
|
2025/03
|
35
|
34
|
22
|
20
|
29
|
37
|
54
|
49
|
51
|
45
|
49
|
49
|
51
|
27
|
20
|
42
|
42
|
40
|
46
|
51
|
54
|
59
|
71
|
78
|
75
|
67
|
69
|
64
|
46
|
22
|
44
|
|
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
|
|
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