Air Quality
Excellent
No health implications.
16
PM2.5
31
PM10
56
O3
0.5
CO
6
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 May
54
Good
Sun
17 May
57
Good
Mon
18 May
57
Good
Tue
19 May
50
Excellent
Wed
20 May
49
Excellent
Thu
21 May
44
Excellent
Fri
22 May
46
Excellent
Air quality in the last 12 months (Qiantang)
|
2026/04
|
41
|
56
|
37
|
35
|
62
|
77
|
50
|
36
|
31
|
47
|
55
|
40
|
52
|
35
|
54
|
38
|
66
|
56
|
62
|
59
|
51
|
28
|
25
|
54
|
66
|
67
|
72
|
58
|
26
|
41
|
|
|
2026/03
|
32
|
19
|
48
|
31
|
51
|
70
|
50
|
39
|
45
|
57
|
56
|
47
|
72
|
72
|
62
|
43
|
54
|
45
|
66
|
63
|
48
|
59
|
52
|
49
|
59
|
79
|
37
|
50
|
51
|
38
|
40
|
|
2026/02
|
61
|
81
|
101
|
91
|
114
|
65
|
30
|
53
|
45
|
56
|
77
|
99
|
115
|
63
|
63
|
35
|
58
|
59
|
62
|
37
|
29
|
67
|
77
|
32
|
33
|
32
|
19
|
35
|
|||
|
2026/01
|
25
|
59
|
98
|
119
|
105
|
106
|
56
|
67
|
80
|
67
|
84
|
63
|
64
|
75
|
76
|
139
|
114
|
65
|
37
|
32
|
50
|
52
|
76
|
106
|
102
|
50
|
57
|
67
|
44
|
37
|
36
|
|
2025/12
|
114
|
60
|
50
|
55
|
57
|
80
|
90
|
94
|
53
|
50
|
93
|
42
|
36
|
52
|
68
|
64
|
126
|
122
|
84
|
124
|
44
|
41
|
58
|
49
|
66
|
38
|
55
|
82
|
81
|
116
|
33
|
|
2025/11
|
69
|
74
|
29
|
36
|
45
|
47
|
40
|
31
|
21
|
41
|
29
|
36
|
42
|
87
|
59
|
61
|
44
|
34
|
41
|
56
|
72
|
98
|
95
|
81
|
98
|
88
|
148
|
157
|
96
|
77
|
|
|
2025/10
|
31
|
27
|
40
|
38
|
34
|
42
|
56
|
24
|
19
|
29
|
49
|
73
|
55
|
28
|
39
|
25
|
23
|
23
|
26
|
29
|
30
|
31
|
32
|
37
|
40
|
42
|
49
|
25
|
33
|
37
|
22
|
|
2025/09
|
32
|
26
|
24
|
39
|
39
|
36
|
43
|
34
|
24
|
19
|
31
|
36
|
34
|
16
|
30
|
28
|
31
|
21
|
23
|
23
|
24
|
23
|
24
|
20
|
24
|
33
|
42
|
45
|
42
|
29
|
|
|
2025/08
|
29
|
37
|
29
|
35
|
27
|
17
|
17
|
22
|
25
|
30
|
34
|
34
|
22
|
17
|
17
|
19
|
23
|
21
|
24
|
32
|
36
|
28
|
25
|
32
|
35
|
35
|
31
|
19
|
23
|
22
|
32
|
|
2025/07
|
17
|
22
|
32
|
34
|
31
|
21
|
19
|
17
|
18
|
27
|
19
|
16
|
23
|
36
|
39
|
38
|
33
|
28
|
17
|
18
|
16
|
15
|
23
|
23
|
22
|
15
|
15
|
17
|
24
|
10
|
10
|
|
2025/06
|
18
|
15
|
29
|
44
|
39
|
35
|
57
|
34
|
24
|
22
|
18
|
21
|
19
|
22
|
10
|
18
|
46
|
43
|
29
|
22
|
24
|
20
|
19
|
25
|
45
|
36
|
25
|
21
|
21
|
22
|
|
|
2025/05
|
52
|
57
|
60
|
38
|
50
|
82
|
83
|
60
|
20
|
34
|
33
|
49
|
41
|
45
|
104
|
85
|
43
|
71
|
46
|
29
|
18
|
39
|
21
|
46
|
59
|
46
|
40
|
32
|
30
|
52
|
46
|
|
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