Air Quality
Excellent
No health implications.
21
PM2.5
43
PM10
105
O3
0.6
CO
9
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
101
Lightly
Fri
10 May
98
Good
Sat
11 May
74
Good
Sun
12 May
73
Good
Mon
13 May
97
Good
Tue
14 May
102
Lightly
Wed
15 May
100
Good
Air quality in the last 12 months (Qiantang)
|
2024/02
|
24
|
34
|
25
|
42
|
50
|
93
|
88
|
98
|
147
|
214
|
93
|
66
|
45
|
40
|
47
|
30
|
41
|
37
|
53
|
16
|
15
|
27
|
46
|
53
|
78
|
123
|
81
|
52
|
34
|
||
|
2024/01
|
150
|
144
|
112
|
124
|
88
|
170
|
176
|
90
|
140
|
177
|
166
|
96
|
133
|
142
|
71
|
46
|
69
|
86
|
39
|
37
|
83
|
46
|
36
|
48
|
71
|
87
|
122
|
113
|
120
|
86
|
59
|
|
2023/12
|
45
|
74
|
115
|
116
|
68
|
76
|
84
|
62
|
68
|
103
|
29
|
46
|
80
|
63
|
41
|
42
|
39
|
43
|
48
|
80
|
52
|
46
|
68
|
80
|
85
|
126
|
155
|
218
|
187
|
188
|
182
|
|
2023/11
|
53
|
45
|
56
|
62
|
56
|
32
|
64
|
57
|
57
|
33
|
32
|
44
|
47
|
71
|
107
|
80
|
92
|
62
|
65
|
89
|
88
|
63
|
99
|
56
|
52
|
71
|
79
|
80
|
89
|
45
|
|
|
2023/10
|
33
|
32
|
35
|
33
|
37
|
32
|
23
|
28
|
45
|
56
|
50
|
44
|
38
|
46
|
54
|
68
|
91
|
73
|
69
|
37
|
47
|
56
|
51
|
55
|
83
|
78
|
80
|
32
|
48
|
57
|
64
|
|
2023/09
|
35
|
48
|
45
|
26
|
29
|
32
|
36
|
39
|
47
|
55
|
69
|
53
|
33
|
23
|
24
|
27
|
44
|
57
|
40
|
28
|
23
|
24
|
20
|
38
|
48
|
55
|
56
|
49
|
46
|
38
|
|
|
2023/08
|
23
|
26
|
28
|
30
|
36
|
53
|
41
|
35
|
43
|
44
|
88
|
68
|
66
|
56
|
28
|
44
|
54
|
47
|
32
|
32
|
31
|
33
|
35
|
52
|
52
|
35
|
24
|
20
|
22
|
24
|
34
|
|
2023/07
|
28
|
37
|
33
|
26
|
28
|
32
|
30
|
32
|
38
|
42
|
49
|
48
|
45
|
48
|
55
|
32
|
24
|
33
|
43
|
22
|
25
|
21
|
21
|
34
|
29
|
23
|
19
|
15
|
15
|
19
|
26
|
|
2023/06
|
40
|
75
|
60
|
56
|
57
|
35
|
48
|
44
|
59
|
69
|
69
|
41
|
40
|
64
|
77
|
67
|
31
|
47
|
41
|
23
|
58
|
63
|
32
|
24
|
18
|
27
|
27
|
33
|
34
|
29
|
|
|
2023/05
|
73
|
42
|
36
|
39
|
32
|
36
|
27
|
39
|
48
|
51
|
49
|
52
|
59
|
64
|
71
|
51
|
26
|
27
|
31
|
49
|
60
|
64
|
91
|
56
|
65
|
68
|
49
|
42
|
65
|
69
|
45
|
|
2023/04
|
54
|
54
|
46
|
34
|
38
|
47
|
51
|
67
|
55
|
59
|
67
|
295
|
124
|
71
|
81
|
83
|
89
|
72
|
34
|
31
|
53
|
78
|
82
|
44
|
54
|
53
|
62
|
56
|
77
|
94
|
|
|
2023/03
|
92
|
84
|
62
|
91
|
101
|
74
|
80
|
75
|
63
|
75
|
66
|
75
|
66
|
65
|
72
|
68
|
38
|
54
|
49
|
52
|
38
|
45
|
31
|
114
|
57
|
69
|
96
|
90
|
56
|
43
|
50
|
|
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