Air Quality
Excellent
No health implications.
4
PM2.5
13
PM10
92
O3
0.5
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Jun
41
Excellent
Sun
22 Jun
42
Excellent
Mon
23 Jun
42
Excellent
Tue
24 Jun
49
Excellent
Wed
25 Jun
55
Good
Thu
26 Jun
55
Good
Fri
27 Jun
39
Excellent
Air quality in the last 12 months (Xihu)
|
2025/05
|
60
|
54
|
61
|
56
|
22
|
46
|
96
|
34
|
30
|
49
|
42
|
48
|
49
|
47
|
71
|
30
|
28
|
40
|
28
|
16
|
17
|
23
|
28
|
56
|
53
|
67
|
66
|
39
|
24
|
35
|
18
|
|
2025/04
|
59
|
67
|
70
|
73
|
74
|
71
|
73
|
72
|
74
|
47
|
51
|
208
|
177
|
127
|
59
|
64
|
64
|
68
|
35
|
39
|
27
|
26
|
54
|
35
|
26
|
25
|
27
|
44
|
64
|
61
|
|
|
2025/03
|
68
|
47
|
32
|
23
|
51
|
72
|
66
|
62
|
71
|
81
|
88
|
55
|
54
|
51
|
26
|
50
|
37
|
50
|
50
|
55
|
62
|
68
|
76
|
74
|
79
|
89
|
78
|
74
|
52
|
57
|
49
|
|
2025/02
|
55
|
33
|
61
|
74
|
81
|
53
|
70
|
46
|
37
|
58
|
84
|
92
|
108
|
66
|
47
|
56
|
60
|
45
|
52
|
46
|
52
|
36
|
84
|
97
|
109
|
111
|
108
|
72
|
|||
|
2025/01
|
125
|
109
|
170
|
146
|
155
|
116
|
76
|
77
|
66
|
46
|
64
|
82
|
102
|
81
|
87
|
55
|
70
|
82
|
90
|
110
|
111
|
90
|
105
|
150
|
50
|
30
|
60
|
86
|
165
|
93
|
58
|
|
2024/12
|
82
|
77
|
102
|
122
|
62
|
77
|
69
|
95
|
66
|
78
|
48
|
111
|
102
|
64
|
71
|
84
|
91
|
97
|
62
|
73
|
97
|
70
|
83
|
107
|
119
|
111
|
132
|
107
|
96
|
119
|
102
|
|
2024/11
|
41
|
56
|
63
|
77
|
70
|
53
|
49
|
60
|
63
|
60
|
65
|
63
|
75
|
63
|
25
|
60
|
51
|
38
|
47
|
57
|
52
|
56
|
85
|
72
|
54
|
45
|
51
|
55
|
64
|
75
|
|
|
2024/10
|
54
|
51
|
41
|
33
|
42
|
36
|
30
|
30
|
55
|
68
|
69
|
61
|
83
|
88
|
56
|
27
|
37
|
59
|
37
|
36
|
49
|
47
|
56
|
54
|
68
|
55
|
27
|
64
|
108
|
80
|
56
|
|
2024/09
|
47
|
53
|
47
|
45
|
43
|
32
|
30
|
44
|
42
|
37
|
35
|
15
|
25
|
38
|
40
|
29
|
30
|
32
|
34
|
24
|
44
|
45
|
35
|
34
|
49
|
54
|
58
|
26
|
40
|
41
|
|
|
2024/08
|
21
|
24
|
30
|
39
|
42
|
31
|
43
|
39
|
40
|
41
|
38
|
30
|
26
|
23
|
21
|
35
|
33
|
20
|
15
|
26
|
29
|
27
|
32
|
42
|
38
|
45
|
41
|
19
|
25
|
36
|
48
|
|
2024/07
|
25
|
17
|
23
|
21
|
23
|
27
|
22
|
23
|
35
|
33
|
37
|
37
|
33
|
33
|
43
|
30
|
22
|
23
|
23
|
24
|
31
|
33
|
36
|
38
|
35
|
27
|
9
|
12
|
16
|
25
|
20
|
|
2024/06
|
14
|
19
|
21
|
34
|
28
|
28
|
33
|
27
|
28
|
27
|
22
|
25
|
26
|
21
|
21
|
21
|
22
|
13
|
23
|
30
|
34
|
35
|
29
|
18
|
11
|
11
|
22
|
41
|
23
|
30
|
|
|
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