Air Quality
Excellent
No health implications.
8
PM2.5
17
PM10
22
O3
0.5
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
35
Excellent
Mon
28 Jul
35
Excellent
Tue
29 Jul
41
Excellent
Wed
30 Jul
42
Excellent
Thu
31 Jul
59
Good
Fri
1 Aug
59
Good
Sat
2 Aug
42
Excellent
Air quality in the last 12 months (Xihu)
|
2025/06
|
24
|
13
|
28
|
43
|
35
|
30
|
57
|
26
|
20
|
18
|
21
|
32
|
25
|
20
|
9
|
16
|
39
|
36
|
21
|
19
|
20
|
22
|
17
|
32
|
52
|
39
|
20
|
18
|
18
|
23
|
|
|
2025/05
|
47
|
51
|
55
|
37
|
37
|
74
|
84
|
57
|
18
|
25
|
24
|
41
|
43
|
48
|
79
|
49
|
29
|
62
|
42
|
30
|
15
|
34
|
21
|
44
|
62
|
56
|
53
|
41
|
27
|
54
|
52
|
|
2025/04
|
50
|
53
|
68
|
62
|
62
|
72
|
67
|
62
|
66
|
61
|
59
|
143
|
77
|
87
|
51
|
48
|
54
|
61
|
73
|
72
|
49
|
32
|
47
|
53
|
45
|
59
|
33
|
49
|
48
|
52
|
|
|
2025/03
|
47
|
44
|
26
|
21
|
40
|
44
|
65
|
67
|
59
|
80
|
71
|
44
|
31
|
43
|
24
|
50
|
29
|
45
|
57
|
59
|
40
|
49
|
50
|
55
|
54
|
67
|
62
|
58
|
55
|
58
|
36
|
|
2025/02
|
27
|
52
|
83
|
54
|
39
|
64
|
56
|
31
|
39
|
55
|
85
|
93
|
108
|
70
|
89
|
44
|
70
|
45
|
61
|
46
|
29
|
57
|
91
|
82
|
98
|
88
|
91
|
41
|
|||
|
2025/01
|
96
|
90
|
79
|
87
|
104
|
82
|
72
|
74
|
46
|
46
|
60
|
65
|
82
|
83
|
52
|
48
|
63
|
85
|
81
|
110
|
144
|
144
|
82
|
48
|
35
|
42
|
37
|
44
|
128
|
71
|
62
|
|
2024/12
|
56
|
57
|
111
|
60
|
61
|
90
|
150
|
38
|
55
|
45
|
29
|
76
|
85
|
85
|
54
|
53
|
54
|
82
|
40
|
53
|
83
|
61
|
70
|
62
|
92
|
145
|
65
|
59
|
60
|
81
|
76
|
|
2024/11
|
9
|
28
|
57
|
73
|
38
|
38
|
34
|
43
|
45
|
44
|
50
|
49
|
55
|
51
|
44
|
35
|
21
|
28
|
38
|
45
|
52
|
83
|
45
|
39
|
35
|
28
|
40
|
52
|
41
|
52
|
|
|
2024/10
|
19
|
20
|
28
|
29
|
31
|
15
|
14
|
28
|
39
|
51
|
69
|
63
|
33
|
49
|
46
|
36
|
34
|
32
|
19
|
35
|
50
|
33
|
48
|
41
|
42
|
20
|
11
|
49
|
53
|
44
|
35
|
|
2024/09
|
47
|
53
|
42
|
36
|
34
|
39
|
54
|
35
|
30
|
41
|
16
|
37
|
20
|
25
|
24
|
17
|
16
|
22
|
20
|
17
|
18
|
25
|
30
|
42
|
51
|
58
|
24
|
33
|
33
|
31
|
|
|
2024/08
|
19
|
19
|
40
|
37
|
32
|
36
|
45
|
36
|
38
|
43
|
37
|
26
|
23
|
29
|
30
|
42
|
30
|
40
|
25
|
21
|
15
|
22
|
37
|
43
|
42
|
48
|
47
|
25
|
25
|
30
|
41
|
|
2024/07
|
20
|
22
|
19
|
21
|
22
|
22
|
21
|
24
|
27
|
25
|
39
|
35
|
28
|
27
|
35
|
29
|
32
|
26
|
23
|
26
|
33
|
28
|
26
|
25
|
30
|
20
|
14
|
16
|
15
|
16
|
21
|
|
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