Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
40
O3
0.6
CO
5
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Apr
45
Excellent
Thu
23 Apr
49
Excellent
Fri
24 Apr
66
Good
Sat
25 Apr
77
Good
Sun
26 Apr
90
Good
Mon
27 Apr
91
Good
Tue
28 Apr
28
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