Air Quality
Excellent
No health implications.
18
PM2.5
36
PM10
110
O3
0.8
CO
8
SO2
30
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
77
Good
Tue
29 Apr
91
Good
Wed
30 Apr
110
Light
Thu
1 May
119
Light
Fri
2 May
102
Light
Sat
3 May
102
Light
Sun
4 May
27
Excellent
Air quality in the last 12 months (Changning)
|
2025/02
|
27
|
59
|
69
|
64
|
53
|
37
|
50
|
41
|
46
|
53
|
30
|
77
|
39
|
34
|
65
|
115
|
60
|
45
|
47
|
29
|
34
|
60
|
58
|
73
|
85
|
134
|
137
|
55
|
|||
|
2025/01
|
53
|
42
|
56
|
35
|
65
|
95
|
65
|
67
|
31
|
41
|
58
|
71
|
89
|
102
|
38
|
58
|
70
|
72
|
98
|
156
|
112
|
31
|
37
|
37
|
33
|
44
|
55
|
44
|
88
|
46
|
34
|
|
2024/12
|
59
|
79
|
77
|
31
|
51
|
135
|
131
|
30
|
32
|
40
|
55
|
48
|
63
|
74
|
64
|
66
|
75
|
65
|
39
|
51
|
85
|
49
|
37
|
46
|
60
|
125
|
44
|
54
|
70
|
65
|
75
|
|
2024/11
|
9
|
52
|
81
|
63
|
24
|
22
|
23
|
28
|
31
|
31
|
42
|
45
|
54
|
36
|
62
|
48
|
21
|
27
|
25
|
31
|
59
|
81
|
17
|
21
|
32
|
37
|
57
|
68
|
53
|
63
|
|
|
2024/10
|
19
|
25
|
20
|
19
|
18
|
13
|
15
|
45
|
35
|
70
|
78
|
63
|
20
|
39
|
54
|
32
|
31
|
41
|
28
|
37
|
42
|
51
|
44
|
22
|
36
|
15
|
17
|
60
|
23
|
30
|
24
|
|
2024/09
|
36
|
38
|
28
|
25
|
23
|
40
|
47
|
29
|
22
|
31
|
13
|
25
|
18
|
18
|
23
|
15
|
20
|
24
|
26
|
17
|
22
|
32
|
29
|
29
|
33
|
20
|
24
|
34
|
33
|
35
|
|
|
2024/08
|
33
|
46
|
50
|
35
|
41
|
33
|
27
|
39
|
34
|
40
|
45
|
46
|
38
|
20
|
25
|
35
|
21
|
17
|
18
|
26
|
21
|
39
|
31
|
31
|
27
|
24
|
44
|
36
|
17
|
29
|
28
|
|
2024/07
|
36
|
26
|
26
|
39
|
45
|
39
|
44
|
42
|
41
|
39
|
25
|
30
|
47
|
73
|
48
|
23
|
34
|
36
|
38
|
35
|
35
|
26
|
22
|
26
|
27
|
34
|
28
|
24
|
20
|
21
|
29
|
|
2024/06
|
67
|
21
|
40
|
53
|
33
|
18
|
22
|
28
|
38
|
28
|
19
|
39
|
67
|
46
|
30
|
31
|
20
|
22
|
22
|
22
|
42
|
39
|
25
|
36
|
37
|
29
|
18
|
21
|
30
|
25
|
|
|
2024/05
|
37
|
29
|
34
|
40
|
38
|
62
|
69
|
42
|
23
|
29
|
56
|
63
|
68
|
42
|
46
|
33
|
42
|
35
|
32
|
26
|
28
|
39
|
24
|
23
|
25
|
31
|
30
|
21
|
24
|
41
|
63
|
|
2024/04
|
69
|
31
|
31
|
42
|
51
|
44
|
47
|
40
|
64
|
60
|
47
|
32
|
26
|
25
|
62
|
57
|
25
|
75
|
105
|
50
|
39
|
44
|
48
|
48
|
35
|
41
|
28
|
31
|
45
|
41
|
|
|
2024/03
|
38
|
58
|
65
|
38
|
36
|
52
|
48
|
78
|
79
|
45
|
60
|
98
|
47
|
57
|
42
|
37
|
70
|
60
|
75
|
98
|
62
|
67
|
71
|
81
|
57
|
39
|
38
|
51
|
60
|
60
|
75
|
|
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