Air Quality
Excellent
No health implications.
11
PM2.5
19
PM10
56
O3
0.3
CO
4
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Feb
65
Good
Tue
17 Feb
87
Good
Wed
18 Feb
67
Good
Thu
19 Feb
59
Good
Fri
20 Feb
56
Good
Sat
21 Feb
33
Excellent
Sun
22 Feb
21
Excellent
Air quality in the last 12 months (Xiashan)
|
2026/01
|
36
|
48
|
30
|
38
|
57
|
41
|
52
|
52
|
47
|
59
|
47
|
45
|
66
|
67
|
48
|
36
|
44
|
44
|
38
|
37
|
59
|
50
|
53
|
68
|
48
|
28
|
58
|
71
|
34
|
24
|
39
|
|
2025/12
|
78
|
41
|
36
|
64
|
69
|
84
|
64
|
75
|
64
|
69
|
71
|
56
|
40
|
31
|
49
|
45
|
60
|
51
|
40
|
40
|
59
|
46
|
32
|
26
|
27
|
33
|
49
|
67
|
66
|
68
|
60
|
|
2025/11
|
39
|
52
|
49
|
20
|
19
|
34
|
27
|
22
|
36
|
26
|
27
|
29
|
44
|
31
|
40
|
48
|
57
|
48
|
23
|
32
|
38
|
40
|
50
|
60
|
46
|
50
|
45
|
53
|
56
|
51
|
|
|
2025/10
|
15
|
14
|
14
|
19
|
25
|
21
|
13
|
25
|
26
|
31
|
24
|
17
|
12
|
11
|
15
|
24
|
27
|
34
|
44
|
25
|
19
|
18
|
20
|
34
|
49
|
47
|
53
|
49
|
59
|
53
|
58
|
|
2025/09
|
12
|
11
|
10
|
12
|
11
|
10
|
26
|
25
|
22
|
16
|
15
|
14
|
11
|
12
|
14
|
15
|
14
|
20
|
30
|
39
|
24
|
15
|
30
|
19
|
17
|
19
|
21
|
20
|
19
|
17
|
|
|
2025/08
|
27
|
30
|
36
|
35
|
25
|
27
|
31
|
25
|
25
|
18
|
19
|
21
|
27
|
29
|
26
|
16
|
16
|
11
|
17
|
23
|
20
|
10
|
20
|
17
|
16
|
14
|
21
|
19
|
19
|
16
|
17
|
|
2025/07
|
15
|
12
|
17
|
22
|
29
|
41
|
31
|
23
|
28
|
28
|
27
|
27
|
25
|
28
|
26
|
30
|
27
|
25
|
20
|
24
|
14
|
22
|
22
|
18
|
31
|
22
|
27
|
17
|
21
|
20
|
25
|
|
2025/06
|
22
|
25
|
32
|
22
|
13
|
12
|
15
|
22
|
22
|
22
|
20
|
17
|
21
|
20
|
22
|
24
|
21
|
20
|
18
|
20
|
20
|
16
|
16
|
15
|
10
|
12
|
11
|
14
|
13
|
13
|
|
|
2025/05
|
29
|
24
|
31
|
26
|
23
|
27
|
23
|
17
|
15
|
22
|
30
|
37
|
31
|
25
|
14
|
11
|
13
|
20
|
17
|
22
|
21
|
16
|
17
|
12
|
24
|
42
|
51
|
25
|
15
|
15
|
18
|
|
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
|
|||
|
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