Air Quality
Excellent
No health implications.
20
PM2.5
31
PM10
69
O3
0.4
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
50
Excellent
Thu
30 Apr
85
Good
Fri
1 May
92
Good
Sat
2 May
71
Good
Sun
3 May
58
Good
Mon
4 May
27
Excellent
Tue
5 May
16
Excellent
Air quality in the last 12 months (Xihu)
|
2026/03
|
41
|
18
|
50
|
40
|
48
|
68
|
60
|
44
|
46
|
62
|
61
|
46
|
70
|
73
|
69
|
50
|
68
|
41
|
69
|
78
|
55
|
67
|
51
|
51
|
50
|
93
|
37
|
49
|
46
|
49
|
39
|
|
2026/02
|
43
|
59
|
99
|
99
|
101
|
66
|
30
|
46
|
39
|
53
|
66
|
86
|
90
|
53
|
52
|
35
|
68
|
56
|
52
|
32
|
28
|
59
|
90
|
39
|
37
|
38
|
16
|
37
|
|||
|
2026/01
|
28
|
76
|
103
|
116
|
99
|
89
|
51
|
60
|
74
|
59
|
76
|
59
|
58
|
69
|
74
|
117
|
126
|
81
|
37
|
31
|
49
|
57
|
72
|
103
|
126
|
64
|
54
|
78
|
48
|
40
|
25
|
|
2025/12
|
108
|
67
|
56
|
53
|
61
|
72
|
76
|
102
|
53
|
57
|
88
|
51
|
36
|
51
|
62
|
62
|
113
|
147
|
103
|
119
|
48
|
43
|
55
|
40
|
66
|
36
|
50
|
74
|
69
|
130
|
36
|
|
2025/11
|
56
|
77
|
32
|
49
|
51
|
53
|
31
|
28
|
20
|
50
|
33
|
42
|
40
|
80
|
81
|
69
|
52
|
31
|
39
|
47
|
58
|
86
|
84
|
71
|
96
|
85
|
121
|
127
|
81
|
69
|
|
|
2025/10
|
41
|
33
|
49
|
46
|
46
|
46
|
64
|
32
|
26
|
31
|
45
|
88
|
59
|
31
|
39
|
28
|
25
|
20
|
31
|
29
|
33
|
33
|
33
|
40
|
45
|
47
|
48
|
30
|
40
|
40
|
21
|
|
2025/09
|
30
|
22
|
25
|
37
|
43
|
37
|
39
|
39
|
20
|
21
|
35
|
34
|
28
|
17
|
31
|
38
|
33
|
21
|
28
|
20
|
30
|
30
|
29
|
24
|
36
|
39
|
44
|
52
|
47
|
37
|
|
|
2025/08
|
26
|
38
|
26
|
39
|
32
|
19
|
11
|
16
|
20
|
24
|
33
|
37
|
23
|
22
|
19
|
21
|
24
|
27
|
27
|
34
|
35
|
20
|
17
|
25
|
33
|
38
|
35
|
18
|
22
|
27
|
27
|
|
2025/07
|
17
|
26
|
29
|
32
|
31
|
23
|
20
|
16
|
21
|
32
|
18
|
17
|
25
|
35
|
37
|
27
|
28
|
31
|
20
|
18
|
15
|
16
|
22
|
22
|
21
|
14
|
16
|
15
|
24
|
12
|
9
|
|
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
|
|
|
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