Air Quality
Excellent
No health implications.
8
PM2.5
14
PM10
33
O3
0.4
CO
6
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 May
43
Excellent
Thu
21 May
80
Good
Fri
22 May
76
Good
Sat
23 May
67
Good
Sun
24 May
74
Good
Mon
25 May
52
Good
Tue
26 May
45
Excellent
Real-time AQI (Monitoring Station in Lin'an)
四中
7049
PM2.5
90 *
PM10
54
O3
0.9
CO
10
SO2
32
NO2
Air quality in the last 12 months (Lin'an)
|
2026/04
|
30
|
37
|
30
|
29
|
57
|
63
|
51
|
37
|
32
|
35
|
59
|
35
|
39
|
36
|
47
|
57
|
59
|
65
|
46
|
49
|
45
|
21
|
19
|
35
|
56
|
54
|
51
|
40
|
27
|
32
|
|
|
2026/03
|
43
|
17
|
41
|
48
|
49
|
64
|
66
|
44
|
57
|
66
|
58
|
52
|
63
|
69
|
73
|
62
|
66
|
33
|
58
|
89
|
57
|
55
|
49
|
45
|
48
|
84
|
50
|
36
|
44
|
48
|
30
|
|
2026/02
|
36
|
49
|
100
|
94
|
98
|
58
|
29
|
44
|
40
|
41
|
52
|
72
|
79
|
45
|
48
|
27
|
75
|
55
|
50
|
35
|
33
|
61
|
98
|
38
|
40
|
33
|
14
|
35
|
|||
|
2026/01
|
25
|
66
|
99
|
104
|
102
|
87
|
57
|
58
|
65
|
59
|
68
|
66
|
61
|
57
|
61
|
102
|
111
|
108
|
40
|
34
|
82
|
57
|
77
|
97
|
151
|
96
|
45
|
93
|
59
|
29
|
21
|
|
2025/12
|
121
|
96
|
55
|
56
|
73
|
79
|
68
|
108
|
63
|
71
|
80
|
57
|
35
|
53
|
60
|
59
|
101
|
165
|
102
|
91
|
45
|
43
|
59
|
23
|
61
|
50
|
58
|
63
|
58
|
114
|
32
|
|
2025/11
|
45
|
63
|
37
|
54
|
52
|
53
|
24
|
24
|
15
|
47
|
28
|
35
|
32
|
67
|
77
|
72
|
42
|
30
|
52
|
49
|
54
|
71
|
67
|
66
|
98
|
93
|
114
|
116
|
77
|
62
|
|
|
2025/10
|
35
|
46
|
45
|
48
|
42
|
40
|
58
|
37
|
28
|
34
|
44
|
91
|
63
|
27
|
29
|
16
|
23
|
12
|
16
|
22
|
25
|
28
|
29
|
34
|
46
|
45
|
46
|
42
|
42
|
46
|
25
|
|
2025/09
|
24
|
16
|
20
|
32
|
38
|
34
|
33
|
35
|
17
|
18
|
38
|
34
|
18
|
12
|
23
|
28
|
22
|
16
|
26
|
15
|
26
|
33
|
33
|
22
|
39
|
40
|
38
|
46
|
49
|
38
|
|
|
2025/08
|
25
|
30
|
21
|
29
|
25
|
14
|
14
|
16
|
22
|
26
|
32
|
35
|
17
|
19
|
17
|
21
|
25
|
31
|
33
|
36
|
29
|
16
|
15
|
21
|
20
|
30
|
40
|
20
|
23
|
27
|
26
|
|
2025/07
|
19
|
22
|
26
|
38
|
35
|
26
|
20
|
12
|
15
|
27
|
20
|
13
|
22
|
32
|
37
|
28
|
27
|
32
|
24
|
15
|
14
|
13
|
22
|
21
|
25
|
11
|
16
|
15
|
21
|
11
|
10
|
|
2025/06
|
19
|
11
|
29
|
51
|
33
|
35
|
54
|
23
|
19
|
24
|
25
|
39
|
36
|
19
|
9
|
19
|
37
|
27
|
19
|
17
|
17
|
15
|
16
|
22
|
38
|
33
|
17
|
15
|
15
|
22
|
|
|
2025/05
|
43
|
42
|
53
|
36
|
40
|
79
|
92
|
57
|
14
|
24
|
28
|
40
|
44
|
49
|
64
|
35
|
30
|
62
|
44
|
25
|
15
|
30
|
19
|
42
|
57
|
49
|
56
|
43
|
32
|
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