Air Quality
Excellent
No health implications.
7
PM2.5
20
PM10
22
O3
0.6
CO
12
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
50
Excellent
Fri
23 May
47
Excellent
Sat
24 May
50
Excellent
Sun
25 May
56
Good
Mon
26 May
53
Good
Tue
27 May
44
Excellent
Wed
28 May
32
Excellent
Air quality in the last 12 months (Xiashan)
|
2025/04
|
30
|
49
|
37
|
45
|
40
|
52
|
58
|
45
|
40
|
29
|
27
|
43
|
176
|
159
|
141
|
128
|
84
|
62
|
39
|
30
|
26
|
43
|
32
|
34
|
24
|
29
|
26
|
21
|
31
|
36
|
|
|
2025/03
|
32
|
23
|
27
|
23
|
33
|
10
|
14
|
29
|
46
|
29
|
33
|
33
|
22
|
17
|
24
|
19
|
40
|
53
|
55
|
61
|
58
|
53
|
44
|
52
|
55
|
35
|
33
|
29
|
15
|
12
|
18
|
|
2025/02
|
28
|
23
|
35
|
24
|
41
|
48
|
49
|
38
|
55
|
46
|
37
|
43
|
57
|
28
|
27
|
30
|
71
|
52
|
43
|
34
|
29
|
50
|
60
|
21
|
55
|
68
|
63
|
34
|
|||
|
2025/01
|
103
|
85
|
89
|
65
|
81
|
85
|
57
|
59
|
86
|
67
|
46
|
42
|
46
|
65
|
53
|
71
|
59
|
57
|
78
|
69
|
66
|
48
|
48
|
41
|
31
|
26
|
39
|
47
|
102
|
49
|
41
|
|
2024/12
|
47
|
45
|
43
|
43
|
39
|
66
|
73
|
36
|
46
|
55
|
45
|
50
|
48
|
53
|
60
|
45
|
53
|
57
|
48
|
53
|
70
|
64
|
70
|
70
|
75
|
75
|
87
|
76
|
82
|
61
|
82
|
|
2024/11
|
49
|
45
|
57
|
44
|
49
|
57
|
58
|
51
|
60
|
61
|
46
|
61
|
79
|
77
|
66
|
48
|
27
|
32
|
35
|
23
|
25
|
32
|
35
|
45
|
27
|
30
|
38
|
43
|
40
|
38
|
|
|
2024/10
|
44
|
26
|
43
|
46
|
45
|
49
|
47
|
64
|
62
|
55
|
45
|
36
|
34
|
29
|
27
|
25
|
24
|
16
|
21
|
29
|
37
|
49
|
22
|
34
|
38
|
42
|
37
|
25
|
28
|
33
|
47
|
|
2024/09
|
14
|
19
|
39
|
41
|
40
|
18
|
28
|
34
|
24
|
16
|
14
|
28
|
29
|
38
|
35
|
35
|
25
|
21
|
26
|
23
|
27
|
15
|
15
|
16
|
34
|
43
|
39
|
37
|
28
|
28
|
|
|
2024/08
|
23
|
22
|
21
|
28
|
27
|
27
|
36
|
32
|
27
|
28
|
28
|
28
|
19
|
22
|
27
|
21
|
18
|
17
|
18
|
20
|
23
|
24
|
21
|
30
|
17
|
27
|
23
|
26
|
24
|
22
|
13
|
|
2024/07
|
27
|
23
|
20
|
17
|
10
|
10
|
10
|
17
|
12
|
14
|
18
|
16
|
12
|
16
|
18
|
13
|
14
|
14
|
15
|
15
|
13
|
16
|
17
|
18
|
18
|
25
|
21
|
18
|
17
|
19
|
17
|
|
2024/06
|
24
|
28
|
20
|
17
|
12
|
14
|
17
|
13
|
21
|
18
|
22
|
26
|
25
|
28
|
28
|
31
|
31
|
29
|
27
|
27
|
18
|
12
|
11
|
12
|
17
|
16
|
13
|
14
|
17
|
26
|
|
|
2024/05
|
24
|
22
|
16
|
19
|
24
|
26
|
25
|
21
|
38
|
39
|
33
|
24
|
28
|
31
|
28
|
32
|
45
|
30
|
25
|
20
|
20
|
23
|
13
|
13
|
15
|
15
|
26
|
21
|
29
|
25
|
24
|
|
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