Air Quality
Excellent
No health implications.
24
PM2.5
36
PM10
148
O3
0.4
CO
9
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Dec
87
Good
Mon
22 Dec
64
Good
Tue
23 Dec
69
Good
Wed
24 Dec
67
Good
Thu
25 Dec
85
Good
Fri
26 Dec
77
Good
Sat
27 Dec
24
Excellent
Air quality in the last 12 months (Ding'an)
|
2025/11
|
40
|
41
|
40
|
20
|
21
|
28
|
16
|
17
|
30
|
38
|
36
|
28
|
49
|
36
|
40
|
41
|
36
|
50
|
27
|
34
|
39
|
41
|
47
|
51
|
47
|
52
|
50
|
53
|
59
|
36
|
|
|
2025/10
|
16
|
13
|
13
|
16
|
25
|
16
|
23
|
18
|
21
|
25
|
23
|
16
|
10
|
12
|
16
|
22
|
23
|
30
|
34
|
28
|
21
|
20
|
21
|
26
|
37
|
41
|
35
|
37
|
36
|
23
|
42
|
|
2025/09
|
12
|
15
|
14
|
15
|
15
|
16
|
25
|
18
|
19
|
17
|
18
|
14
|
14
|
15
|
24
|
14
|
14
|
16
|
27
|
25
|
23
|
12
|
24
|
20
|
19
|
17
|
25
|
17
|
24
|
17
|
|
|
2025/08
|
26
|
29
|
33
|
30
|
27
|
37
|
30
|
23
|
24
|
21
|
19
|
21
|
20
|
19
|
14
|
12
|
14
|
8
|
15
|
20
|
19
|
16
|
25
|
20
|
15
|
14
|
14
|
15
|
16
|
17
|
15
|
|
2025/07
|
15
|
13
|
11
|
13
|
16
|
18
|
18
|
25
|
26
|
26
|
21
|
22
|
27
|
29
|
34
|
26
|
21
|
25
|
18
|
13
|
10
|
17
|
19
|
14
|
18
|
20
|
21
|
16
|
21
|
21
|
20
|
|
2025/06
|
21
|
21
|
28
|
24
|
13
|
18
|
22
|
24
|
22
|
28
|
18
|
14
|
12
|
13
|
18
|
18
|
21
|
16
|
14
|
16
|
15
|
12
|
12
|
14
|
10
|
9
|
11
|
15
|
16
|
15
|
|
|
2025/05
|
22
|
22
|
29
|
24
|
20
|
22
|
19
|
16
|
24
|
16
|
23
|
34
|
23
|
13
|
11
|
18
|
15
|
18
|
17
|
16
|
18
|
15
|
17
|
13
|
27
|
36
|
27
|
18
|
14
|
11
|
12
|
|
2025/04
|
17
|
33
|
30
|
32
|
35
|
21
|
36
|
32
|
34
|
36
|
29
|
31
|
142
|
161
|
136
|
110
|
79
|
48
|
35
|
26
|
29
|
27
|
28
|
26
|
24
|
22
|
17
|
26
|
35
|
31
|
|
|
2025/03
|
25
|
23
|
28
|
25
|
22
|
12
|
28
|
18
|
34
|
41
|
35
|
24
|
20
|
19
|
25
|
15
|
33
|
38
|
47
|
48
|
43
|
42
|
37
|
42
|
42
|
34
|
35
|
30
|
16
|
8
|
14
|
|
2025/02
|
29
|
17
|
28
|
23
|
26
|
33
|
40
|
31
|
52
|
39
|
29
|
20
|
30
|
22
|
16
|
19
|
28
|
47
|
41
|
32
|
33
|
22
|
23
|
27
|
25
|
36
|
35
|
25
|
|||
|
2025/01
|
61
|
46
|
60
|
50
|
57
|
74
|
43
|
50
|
59
|
60
|
43
|
41
|
41
|
33
|
40
|
57
|
59
|
47
|
49
|
62
|
41
|
53
|
45
|
39
|
27
|
27
|
31
|
32
|
49
|
45
|
41
|
|
2024/12
|
36
|
31
|
30
|
29
|
34
|
34
|
49
|
37
|
35
|
27
|
30
|
42
|
35
|
37
|
53
|
42
|
36
|
45
|
44
|
49
|
48
|
46
|
51
|
53
|
49
|
41
|
57
|
63
|
56
|
42
|
54
|
|
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