Air Quality
Excellent
No health implications.
24
PM2.5
30
PM10
79
O3
0.7
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jul
62
Good
Sat
19 Jul
47
Excellent
Sun
20 Jul
46
Excellent
Mon
21 Jul
49
Excellent
Tue
22 Jul
45
Excellent
Wed
23 Jul
47
Excellent
Thu
24 Jul
23
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)
|
2025/06
|
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
|
|
|
2024/08
|
19
|
20
|
24
|
28
|
22
|
26
|
38
|
29
|
33
|
33
|
30
|
21
|
22
|
24
|
24
|
45
|
36
|
38
|
23
|
19
|
15
|
23
|
31
|
45
|
43
|
45
|
38
|
26
|
35
|
35
|
42
|
|
2024/07
|
16
|
17
|
18
|
20
|
24
|
20
|
18
|
20
|
24
|
30
|
38
|
31
|
17
|
22
|
31
|
28
|
31
|
17
|
20
|
20
|
22
|
30
|
30
|
30
|
18
|
15
|
12
|
15
|
15
|
17
|
20
|
|
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