Air Quality
Excellent
No health implications.
12
PM2.5
30
PM10
57
O3
0.5
CO
5
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Oct
49
Excellent
Sun
19 Oct
42
Excellent
Mon
20 Oct
44
Excellent
Tue
21 Oct
43
Excellent
Wed
22 Oct
49
Excellent
Thu
23 Oct
51
Good
Fri
24 Oct
25
Excellent
Air quality in the last 12 months (Jiashan)
|
2025/08
|
40
|
42
|
26
|
33
|
29
|
21
|
19
|
27
|
30
|
33
|
37
|
30
|
20
|
18
|
17
|
26
|
26
|
14
|
21
|
32
|
46
|
32
|
32
|
33
|
30
|
31
|
18
|
18
|
19
|
16
|
27
|
|
2025/07
|
18
|
27
|
32
|
35
|
32
|
24
|
13
|
17
|
17
|
38
|
19
|
18
|
26
|
41
|
40
|
47
|
40
|
31
|
14
|
26
|
21
|
23
|
19
|
21
|
23
|
14
|
16
|
21
|
22
|
8
|
20
|
|
2025/06
|
15
|
14
|
35
|
52
|
39
|
46
|
44
|
22
|
21
|
20
|
27
|
17
|
15
|
27
|
12
|
21
|
51
|
49
|
38
|
24
|
29
|
21
|
18
|
25
|
40
|
35
|
27
|
30
|
27
|
18
|
|
|
2025/05
|
51
|
58
|
55
|
28
|
37
|
77
|
70
|
45
|
14
|
41
|
39
|
49
|
44
|
38
|
57
|
48
|
44
|
70
|
39
|
39
|
20
|
35
|
15
|
49
|
48
|
39
|
28
|
37
|
34
|
50
|
48
|
|
2025/04
|
44
|
67
|
60
|
47
|
62
|
66
|
63
|
64
|
70
|
76
|
70
|
122
|
105
|
86
|
54
|
57
|
62
|
61
|
65
|
59
|
40
|
45
|
53
|
80
|
60
|
42
|
41
|
55
|
42
|
45
|
|
|
2025/03
|
37
|
50
|
30
|
23
|
27
|
35
|
55
|
79
|
38
|
47
|
53
|
29
|
31
|
40
|
23
|
48
|
41
|
51
|
51
|
59
|
54
|
62
|
66
|
60
|
76
|
82
|
65
|
63
|
64
|
47
|
35
|
|
2025/02
|
28
|
58
|
73
|
64
|
44
|
47
|
57
|
36
|
42
|
53
|
31
|
78
|
53
|
38
|
74
|
78
|
74
|
41
|
50
|
38
|
32
|
63
|
79
|
80
|
111
|
106
|
109
|
49
|
|||
|
2025/01
|
73
|
50
|
61
|
49
|
80
|
94
|
75
|
70
|
39
|
45
|
68
|
71
|
93
|
101
|
53
|
56
|
73
|
83
|
101
|
147
|
146
|
64
|
38
|
40
|
28
|
47
|
52
|
43
|
83
|
61
|
41
|
|
2024/12
|
61
|
70
|
86
|
44
|
50
|
112
|
160
|
37
|
47
|
37
|
45
|
64
|
66
|
83
|
57
|
63
|
76
|
87
|
38
|
51
|
84
|
56
|
49
|
50
|
78
|
147
|
55
|
62
|
66
|
74
|
86
|
|
2024/11
|
22
|
52
|
74
|
76
|
36
|
29
|
30
|
30
|
35
|
39
|
47
|
39
|
46
|
36
|
41
|
42
|
24
|
28
|
28
|
30
|
52
|
83
|
25
|
27
|
27
|
29
|
51
|
65
|
51
|
59
|
|
|
2024/10
|
21
|
29
|
23
|
22
|
18
|
13
|
11
|
37
|
36
|
63
|
64
|
57
|
22
|
41
|
53
|
36
|
27
|
35
|
24
|
39
|
29
|
40
|
40
|
29
|
33
|
16
|
15
|
54
|
26
|
31
|
25
|
|
2024/09
|
32
|
38
|
30
|
22
|
24
|
37
|
47
|
32
|
19
|
34
|
17
|
25
|
16
|
22
|
24
|
15
|
16
|
22
|
21
|
17
|
21
|
32
|
29
|
32
|
56
|
24
|
24
|
37
|
35
|
32
|
|
|
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