Air Quality
Excellent
No health implications.
13
PM2.5
27
PM10
65
O3
0.2
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Oct
37
Excellent
Tue
21 Oct
37
Excellent
Wed
22 Oct
43
Excellent
Thu
23 Oct
46
Excellent
Fri
24 Oct
48
Excellent
Sat
25 Oct
50
Excellent
Sun
26 Oct
22
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)
|
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
|
|
2025/04
|
53
|
51
|
64
|
69
|
62
|
59
|
60
|
58
|
63
|
55
|
59
|
123
|
75
|
86
|
52
|
43
|
59
|
61
|
63
|
79
|
45
|
26
|
44
|
54
|
46
|
53
|
37
|
46
|
54
|
50
|
|
|
2025/03
|
42
|
41
|
26
|
21
|
43
|
55
|
76
|
70
|
87
|
81
|
59
|
53
|
27
|
34
|
14
|
40
|
30
|
44
|
53
|
48
|
36
|
42
|
49
|
60
|
59
|
64
|
56
|
60
|
46
|
62
|
39
|
|
2025/02
|
23
|
42
|
87
|
61
|
42
|
65
|
57
|
25
|
36
|
56
|
102
|
96
|
113
|
87
|
84
|
42
|
66
|
45
|
67
|
44
|
39
|
57
|
87
|
89
|
99
|
81
|
68
|
32
|
|||
|
2025/01
|
110
|
95
|
95
|
115
|
120
|
83
|
83
|
88
|
52
|
38
|
71
|
74
|
84
|
81
|
59
|
48
|
62
|
87
|
77
|
97
|
131
|
145
|
104
|
46
|
33
|
35
|
31
|
43
|
223
|
78
|
63
|
|
2024/12
|
51
|
53
|
93
|
71
|
48
|
66
|
110
|
47
|
61
|
52
|
24
|
73
|
76
|
97
|
60
|
51
|
52
|
76
|
48
|
60
|
76
|
66
|
77
|
79
|
110
|
149
|
80
|
71
|
70
|
97
|
97
|
|
2024/11
|
12
|
26
|
40
|
64
|
42
|
40
|
35
|
49
|
46
|
39
|
42
|
52
|
58
|
51
|
38
|
30
|
19
|
18
|
31
|
45
|
45
|
66
|
47
|
44
|
33
|
25
|
37
|
46
|
40
|
46
|
|
|
2024/10
|
17
|
23
|
32
|
32
|
26
|
9
|
12
|
23
|
46
|
48
|
67
|
67
|
53
|
54
|
54
|
35
|
32
|
30
|
15
|
35
|
48
|
36
|
38
|
50
|
35
|
26
|
14
|
38
|
51
|
36
|
29
|
|
2024/09
|
48
|
49
|
43
|
41
|
34
|
36
|
60
|
40
|
23
|
45
|
17
|
36
|
32
|
27
|
23
|
18
|
17
|
23
|
17
|
15
|
19
|
18
|
25
|
36
|
52
|
59
|
21
|
33
|
40
|
31
|
|
|
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