Air Quality
Excellent
No health implications.
16
PM2.5
30
PM10
9
O3
0.3
CO
6
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
52
Good
Sun
18 May
54
Good
Mon
19 May
57
Good
Tue
20 May
56
Good
Wed
21 May
52
Good
Thu
22 May
35
Excellent
Fri
23 May
34
Excellent
Air quality in the last 12 months (Dinghu)
|
2025/02
|
35
|
31
|
9
|
22
|
38
|
40
|
17
|
39
|
43
|
42
|
52
|
51
|
36
|
62
|
44
|
68
|
39
|
46
|
51
|
46
|
34
|
36
|
17
|
29
|
60
|
62
|
91
|
58
|
|||
|
2025/01
|
65
|
62
|
51
|
59
|
72
|
82
|
75
|
73
|
72
|
45
|
44
|
39
|
39
|
64
|
45
|
60
|
45
|
50
|
43
|
48
|
59
|
66
|
54
|
45
|
32
|
17
|
25
|
36
|
57
|
67
|
38
|
|
2024/12
|
53
|
66
|
54
|
44
|
67
|
73
|
45
|
18
|
47
|
53
|
45
|
19
|
26
|
50
|
43
|
36
|
36
|
38
|
43
|
62
|
48
|
60
|
63
|
66
|
61
|
52
|
65
|
74
|
81
|
74
|
59
|
|
2024/11
|
31
|
32
|
44
|
40
|
34
|
44
|
30
|
30
|
38
|
36
|
39
|
35
|
37
|
29
|
27
|
18
|
28
|
20
|
18
|
16
|
18
|
27
|
32
|
42
|
30
|
11
|
24
|
27
|
25
|
32
|
|
|
2024/10
|
21
|
17
|
30
|
29
|
30
|
36
|
48
|
61
|
51
|
32
|
33
|
54
|
71
|
56
|
44
|
46
|
29
|
36
|
26
|
25
|
29
|
28
|
12
|
22
|
24
|
32
|
25
|
13
|
20
|
28
|
30
|
|
2024/09
|
20
|
30
|
20
|
27
|
25
|
13
|
18
|
21
|
18
|
27
|
34
|
41
|
29
|
29
|
18
|
22
|
25
|
26
|
32
|
32
|
15
|
12
|
15
|
15
|
25
|
16
|
26
|
32
|
34
|
31
|
|
|
2024/08
|
17
|
27
|
28
|
27
|
28
|
25
|
45
|
27
|
26
|
24
|
23
|
19
|
28
|
15
|
13
|
19
|
23
|
20
|
22
|
24
|
21
|
27
|
34
|
26
|
22
|
25
|
38
|
25
|
29
|
37
|
32
|
|
2024/07
|
25
|
21
|
19
|
23
|
20
|
20
|
17
|
21
|
24
|
15
|
16
|
14
|
15
|
29
|
23
|
23
|
26
|
20
|
32
|
35
|
20
|
21
|
25
|
20
|
25
|
34
|
17
|
25
|
18
|
19
|
23
|
|
2024/06
|
13
|
20
|
30
|
32
|
54
|
14
|
37
|
38
|
14
|
15
|
18
|
25
|
24
|
21
|
16
|
21
|
26
|
22
|
24
|
21
|
16
|
23
|
14
|
15
|
16
|
26
|
31
|
19
|
17
|
21
|
|
|
2024/05
|
18
|
29
|
35
|
42
|
24
|
62
|
15
|
30
|
47
|
50
|
35
|
30
|
37
|
48
|
49
|
52
|
53
|
52
|
34
|
14
|
10
|
21
|
43
|
30
|
29
|
19
|
31
|
23
|
29
|
52
|
20
|
|
2024/04
|
42
|
36
|
26
|
33
|
20
|
23
|
21
|
30
|
24
|
51
|
55
|
52
|
40
|
38
|
40
|
34
|
33
|
42
|
34
|
18
|
24
|
51
|
39
|
35
|
31
|
36
|
49
|
48
|
37
|
26
|
|
|
2024/03
|
28
|
40
|
55
|
55
|
67
|
32
|
40
|
44
|
43
|
22
|
20
|
25
|
59
|
60
|
65
|
82
|
105
|
55
|
21
|
61
|
61
|
56
|
54
|
34
|
36
|
36
|
44
|
42
|
38
|
41
|
35
|
|
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