Air Quality
Excellent
No health implications.
22
PM2.5
44
PM10
85
O3
0.7
CO
6
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jan
87
Good
Fri
16 Jan
85
Good
Sat
17 Jan
84
Good
Sun
18 Jan
87
Good
Mon
19 Jan
76
Good
Tue
20 Jan
75
Good
Wed
21 Jan
22
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