Air Quality
Excellent
No health implications.
4
PM2.5
10
PM10
21
O3
0.7
CO
3
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Jan
52
Good
Wed
21 Jan
60
Good
Thu
22 Jan
57
Good
Fri
23 Jan
65
Good
Sat
24 Jan
74
Good
Sun
25 Jan
90
Good
Mon
26 Jan
38
Excellent
Air quality in the last 12 months (Changning)
|
2025/11
|
46
|
41
|
23
|
21
|
28
|
29
|
46
|
14
|
9
|
13
|
34
|
53
|
41
|
48
|
53
|
59
|
64
|
27
|
34
|
43
|
51
|
60
|
71
|
64
|
52
|
61
|
71
|
80
|
72
|
68
|
|
|
2025/10
|
58
|
44
|
31
|
49
|
48
|
22
|
34
|
49
|
39
|
38
|
44
|
68
|
88
|
47
|
58
|
55
|
50
|
23
|
9
|
8
|
10
|
24
|
36
|
41
|
51
|
63
|
66
|
67
|
81
|
93
|
57
|
|
2025/09
|
21
|
24
|
26
|
31
|
37
|
34
|
41
|
34
|
19
|
21
|
19
|
21
|
26
|
34
|
34
|
33
|
25
|
39
|
38
|
23
|
24
|
18
|
24
|
10
|
12
|
20
|
32
|
44
|
51
|
57
|
|
|
2025/08
|
29
|
27
|
17
|
19
|
21
|
13
|
13
|
18
|
26
|
29
|
30
|
32
|
33
|
25
|
12
|
18
|
22
|
23
|
13
|
16
|
20
|
19
|
25
|
26
|
23
|
19
|
29
|
28
|
26
|
21
|
23
|
|
2025/07
|
14
|
14
|
17
|
23
|
33
|
38
|
40
|
33
|
34
|
22
|
24
|
26
|
26
|
28
|
23
|
24
|
26
|
39
|
33
|
31
|
22
|
13
|
15
|
23
|
24
|
28
|
23
|
21
|
24
|
24
|
22
|
|
2025/06
|
19
|
20
|
40
|
45
|
45
|
38
|
29
|
27
|
36
|
39
|
37
|
26
|
32
|
17
|
14
|
23
|
11
|
11
|
16
|
21
|
21
|
15
|
25
|
18
|
31
|
24
|
14
|
15
|
16
|
16
|
|
|
2025/05
|
49
|
57
|
55
|
50
|
34
|
48
|
65
|
43
|
30
|
53
|
51
|
53
|
51
|
45
|
60
|
28
|
27
|
22
|
23
|
19
|
21
|
23
|
26
|
53
|
54
|
47
|
44
|
17
|
20
|
29
|
16
|
|
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
|
|
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