Air Quality
Excellent
No health implications.
8
PM2.5
19
PM10
39
O3
0.7
CO
9
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 May
74
Good
Thu
7 May
61
Good
Fri
8 May
69
Good
Sat
9 May
85
Good
Sun
10 May
74
Good
Mon
11 May
71
Good
Tue
12 May
25
Excellent
Air quality in the last 12 months (Xihu)
|
2026/04
|
98
|
78
|
64
|
45
|
42
|
35
|
43
|
51
|
40
|
65
|
38
|
65
|
64
|
121
|
96
|
61
|
53
|
59
|
67
|
101
|
79
|
54
|
53
|
65
|
63
|
47
|
35
|
34
|
47
|
49
|
|
|
2026/03
|
138
|
215
|
257
|
96
|
54
|
38
|
53
|
90
|
66
|
66
|
67
|
59
|
65
|
114
|
223
|
175
|
127
|
49
|
53
|
62
|
100
|
86
|
92
|
79
|
93
|
132
|
88
|
77
|
58
|
29
|
57
|
|
2026/02
|
106
|
78
|
75
|
115
|
117
|
46
|
57
|
65
|
68
|
97
|
93
|
81
|
125
|
98
|
54
|
100
|
263
|
48
|
55
|
68
|
77
|
114
|
55
|
71
|
73
|
74
|
104
|
112
|
|||
|
2026/01
|
63
|
82
|
101
|
121
|
109
|
76
|
44
|
61
|
63
|
64
|
49
|
43
|
36
|
51
|
79
|
78
|
58
|
51
|
43
|
62
|
70
|
81
|
94
|
88
|
73
|
98
|
65
|
70
|
75
|
85
|
89
|
|
2025/12
|
52
|
32
|
32
|
50
|
53
|
88
|
92
|
38
|
72
|
119
|
53
|
61
|
87
|
109
|
63
|
91
|
86
|
63
|
48
|
33
|
38
|
51
|
49
|
66
|
44
|
70
|
86
|
91
|
38
|
51
|
49
|
|
2025/11
|
63
|
44
|
45
|
50
|
71
|
81
|
142
|
92
|
55
|
46
|
65
|
78
|
49
|
66
|
79
|
56
|
39
|
59
|
64
|
49
|
73
|
79
|
119
|
225
|
73
|
64
|
43
|
52
|
61
|
53
|
|
|
2025/10
|
41
|
47
|
42
|
47
|
43
|
25
|
27
|
35
|
36
|
58
|
58
|
56
|
53
|
73
|
80
|
63
|
74
|
28
|
32
|
49
|
54
|
58
|
60
|
78
|
102
|
65
|
55
|
64
|
59
|
55
|
57
|
|
2025/09
|
42
|
48
|
45
|
45
|
43
|
23
|
42
|
44
|
47
|
51
|
55
|
49
|
55
|
41
|
37
|
39
|
34
|
41
|
44
|
31
|
49
|
46
|
33
|
22
|
39
|
48
|
51
|
41
|
44
|
53
|
|
|
2025/08
|
29
|
29
|
27
|
24
|
28
|
23
|
38
|
37
|
31
|
39
|
39
|
38
|
32
|
38
|
42
|
25
|
28
|
35
|
48
|
28
|
24
|
21
|
31
|
38
|
21
|
21
|
31
|
20
|
28
|
42
|
26
|
|
2025/07
|
18
|
17
|
15
|
15
|
22
|
22
|
35
|
38
|
47
|
51
|
41
|
38
|
31
|
27
|
32
|
22
|
28
|
44
|
27
|
18
|
28
|
28
|
14
|
18
|
24
|
30
|
41
|
43
|
23
|
22
|
36
|
|
2025/06
|
60
|
52
|
32
|
22
|
43
|
41
|
29
|
41
|
39
|
24
|
34
|
38
|
27
|
36
|
38
|
21
|
30
|
35
|
36
|
24
|
30
|
41
|
44
|
47
|
64
|
52
|
47
|
28
|
31
|
17
|
|
|
2025/05
|
26
|
42
|
37
|
50
|
44
|
48
|
54
|
46
|
72
|
46
|
54
|
57
|
61
|
43
|
47
|
36
|
27
|
36
|
37
|
53
|
60
|
71
|
36
|
56
|
51
|
49
|
45
|
47
|
48
|
55
|
54
|
|
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