Air Quality
Excellent
No health implications.
7
PM2.5
14
PM10
50
O3
0.3
CO
3
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
41
Excellent
Mon
28 Apr
42
Excellent
Tue
29 Apr
47
Excellent
Wed
30 Apr
41
Excellent
Thu
1 May
43
Excellent
Fri
2 May
43
Excellent
Sat
3 May
39
Excellent
Air quality in the last 12 months (Ding'an)
|
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
|
|
2024/11
|
50
|
43
|
32
|
32
|
42
|
47
|
51
|
47
|
53
|
46
|
44
|
44
|
53
|
55
|
41
|
42
|
24
|
28
|
26
|
8
|
15
|
26
|
32
|
27
|
26
|
27
|
33
|
36
|
38
|
45
|
|
|
2024/10
|
30
|
31
|
42
|
47
|
38
|
40
|
33
|
53
|
62
|
51
|
37
|
32
|
27
|
19
|
15
|
12
|
12
|
16
|
19
|
26
|
30
|
38
|
28
|
36
|
40
|
45
|
24
|
29
|
19
|
32
|
41
|
|
2024/09
|
13
|
18
|
18
|
27
|
29
|
21
|
18
|
28
|
21
|
11
|
12
|
20
|
25
|
22
|
27
|
27
|
22
|
21
|
16
|
11
|
15
|
11
|
17
|
17
|
23
|
30
|
26
|
22
|
20
|
20
|
|
|
2024/08
|
22
|
23
|
20
|
22
|
22
|
25
|
24
|
24
|
23
|
27
|
26
|
25
|
21
|
22
|
24
|
22
|
17
|
18
|
22
|
20
|
21
|
21
|
19
|
23
|
18
|
22
|
21
|
23
|
27
|
21
|
16
|
|
2024/07
|
19
|
21
|
16
|
13
|
12
|
12
|
11
|
13
|
15
|
17
|
18
|
15
|
13
|
14
|
13
|
13
|
10
|
12
|
15
|
15
|
13
|
10
|
13
|
18
|
16
|
16
|
24
|
24
|
18
|
16
|
21
|
|
2024/06
|
16
|
21
|
17
|
20
|
21
|
21
|
17
|
22
|
22
|
18
|
20
|
21
|
23
|
23
|
24
|
28
|
24
|
22
|
23
|
21
|
18
|
12
|
11
|
12
|
18
|
13
|
11
|
17
|
15
|
22
|
|
|
2024/05
|
29
|
22
|
20
|
22
|
29
|
31
|
26
|
22
|
28
|
32
|
28
|
27
|
24
|
25
|
27
|
29
|
33
|
15
|
15
|
18
|
18
|
14
|
14
|
22
|
20
|
20
|
24
|
23
|
25
|
23
|
17
|
|
2024/04
|
34
|
30
|
31
|
30
|
29
|
38
|
36
|
39
|
33
|
27
|
35
|
33
|
38
|
37
|
37
|
32
|
27
|
32
|
32
|
33
|
29
|
27
|
32
|
36
|
27
|
40
|
47
|
39
|
33
|
35
|
|
|
2024/03
|
11
|
13
|
21
|
24
|
39
|
47
|
33
|
25
|
34
|
36
|
21
|
20
|
24
|
40
|
48
|
36
|
27
|
28
|
24
|
36
|
45
|
43
|
32
|
30
|
38
|
34
|
37
|
35
|
32
|
26
|
33
|
|
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