Air Quality
Excellent
No health implications.
19
PM2.5
30
PM10
83
O3
0.6
CO
8
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
57
Good
Tue
30 Apr
54
Good
Wed
1 May
70
Good
Thu
2 May
78
Good
Fri
3 May
87
Good
Sat
4 May
87
Good
Sun
5 May
78
Good
Air quality in the last 12 months (Xihu)
|
2024/02
|
64
|
92
|
116
|
117
|
71
|
126
|
99
|
160
|
191
|
312
|
121
|
89
|
83
|
44
|
28
|
55
|
39
|
26
|
40
|
48
|
34
|
36
|
40
|
101
|
99
|
58
|
68
|
117
|
63
|
||
|
2024/01
|
99
|
113
|
111
|
70
|
42
|
65
|
32
|
50
|
71
|
91
|
60
|
64
|
46
|
46
|
71
|
61
|
79
|
76
|
60
|
53
|
49
|
36
|
61
|
67
|
83
|
94
|
67
|
92
|
98
|
106
|
82
|
|
2023/12
|
64
|
52
|
53
|
79
|
101
|
75
|
62
|
95
|
36
|
27
|
39
|
63
|
105
|
61
|
75
|
61
|
41
|
72
|
67
|
50
|
66
|
79
|
89
|
83
|
97
|
65
|
96
|
107
|
111
|
88
|
90
|
|
2023/11
|
69
|
82
|
33
|
80
|
80
|
57
|
71
|
44
|
30
|
26
|
41
|
53
|
69
|
76
|
81
|
61
|
33
|
50
|
48
|
39
|
45
|
56
|
37
|
43
|
48
|
79
|
102
|
45
|
37
|
37
|
|
|
2023/10
|
51
|
51
|
43
|
33
|
43
|
57
|
58
|
51
|
30
|
48
|
63
|
65
|
66
|
51
|
51
|
65
|
59
|
55
|
46
|
24
|
41
|
65
|
86
|
70
|
70
|
40
|
63
|
84
|
92
|
84
|
83
|
|
2023/09
|
41
|
48
|
44
|
63
|
58
|
39
|
40
|
50
|
60
|
59
|
46
|
33
|
41
|
48
|
43
|
45
|
67
|
45
|
38
|
34
|
48
|
54
|
36
|
46
|
34
|
49
|
63
|
57
|
45
|
41
|
|
|
2023/08
|
45
|
28
|
37
|
40
|
26
|
20
|
29
|
31
|
35
|
25
|
27
|
31
|
19
|
23
|
31
|
52
|
79
|
43
|
60
|
45
|
39
|
30
|
32
|
35
|
38
|
41
|
39
|
38
|
15
|
24
|
40
|
|
2023/07
|
74
|
46
|
34
|
32
|
42
|
58
|
40
|
34
|
30
|
40
|
36
|
53
|
38
|
25
|
33
|
23
|
38
|
66
|
65
|
81
|
63
|
42
|
25
|
32
|
33
|
33
|
21
|
22
|
19
|
22
|
37
|
|
2023/06
|
44
|
42
|
48
|
56
|
50
|
52
|
41
|
45
|
39
|
39
|
39
|
47
|
50
|
61
|
63
|
38
|
53
|
76
|
64
|
39
|
29
|
48
|
34
|
37
|
41
|
42
|
40
|
39
|
38
|
58
|
|
|
2023/05
|
54
|
50
|
55
|
40
|
41
|
31
|
51
|
59
|
53
|
61
|
66
|
62
|
43
|
37
|
50
|
61
|
45
|
31
|
51
|
99
|
144
|
71
|
55
|
57
|
49
|
48
|
41
|
61
|
63
|
56
|
57
|
|
2023/04
|
82
|
84
|
82
|
98
|
159
|
134
|
46
|
46
|
60
|
68
|
232
|
201
|
276
|
119
|
187
|
85
|
77
|
70
|
71
|
67
|
89
|
81
|
63
|
62
|
54
|
33
|
51
|
46
|
32
|
57
|
|
|
2023/03
|
60
|
58
|
71
|
95
|
93
|
71
|
82
|
94
|
89
|
95
|
128
|
52
|
55
|
59
|
64
|
48
|
63
|
79
|
83
|
94
|
74
|
112
|
166
|
63
|
58
|
60
|
67
|
71
|
74
|
116
|
117
|
|
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