Air Quality
Excellent
No health implications.
20
PM2.5
33
PM10
95
O3
0.5
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Aug
69
Good
Wed
20 Aug
63
Good
Thu
21 Aug
67
Good
Fri
22 Aug
65
Good
Sat
23 Aug
53
Good
Sun
24 Aug
58
Good
Mon
25 Aug
22
Excellent
Lan County Air quality rank
Air quality in the last 12 months (Lan County)
|
2025/06
|
48
|
25
|
30
|
28
|
44
|
46
|
54
|
48
|
50
|
37
|
53
|
62
|
41
|
35
|
20
|
24
|
36
|
44
|
34
|
31
|
30
|
44
|
46
|
49
|
51
|
41
|
42
|
32
|
30
|
45
|
|
|
2025/05
|
56
|
73
|
28
|
57
|
137
|
61
|
72
|
72
|
30
|
42
|
42
|
54
|
79
|
35
|
42
|
138
|
141
|
55
|
65
|
66
|
74
|
91
|
35
|
45
|
42
|
37
|
40
|
57
|
60
|
60
|
35
|
|
2025/04
|
53
|
41
|
87
|
116
|
48
|
71
|
85
|
72
|
63
|
49
|
199
|
104
|
59
|
25
|
49
|
147
|
201
|
78
|
61
|
78
|
85
|
71
|
63
|
42
|
58
|
63
|
42
|
38
|
60
|
106
|
|
|
2025/03
|
90
|
75
|
36
|
54
|
63
|
41
|
66
|
61
|
74
|
78
|
167
|
153
|
80
|
85
|
43
|
25
|
34
|
33
|
41
|
41
|
53
|
71
|
148
|
317
|
360
|
216
|
216
|
92
|
35
|
35
|
41
|
|
2025/02
|
81
|
55
|
25
|
36
|
32
|
107
|
36
|
35
|
46
|
63
|
69
|
60
|
49
|
58
|
68
|
59
|
54
|
64
|
55
|
61
|
66
|
47
|
33
|
50
|
52
|
67
|
71
|
63
|
|||
|
2025/01
|
64
|
54
|
51
|
64
|
72
|
41
|
36
|
39
|
39
|
51
|
61
|
45
|
83
|
44
|
49
|
55
|
62
|
57
|
57
|
51
|
65
|
89
|
118
|
147
|
100
|
80
|
26
|
46
|
158
|
107
|
119
|
|
2024/12
|
61
|
50
|
55
|
47
|
37
|
39
|
39
|
41
|
61
|
61
|
79
|
81
|
81
|
51
|
57
|
61
|
59
|
50
|
62
|
54
|
41
|
53
|
67
|
75
|
67
|
58
|
36
|
49
|
66
|
79
|
70
|
|
2024/11
|
43
|
70
|
55
|
34
|
48
|
62
|
89
|
103
|
112
|
109
|
93
|
79
|
60
|
58
|
62
|
70
|
51
|
58
|
63
|
55
|
57
|
65
|
89
|
109
|
48
|
52
|
67
|
41
|
40
|
60
|
|
|
2024/10
|
62
|
30
|
41
|
57
|
63
|
55
|
34
|
43
|
46
|
39
|
50
|
60
|
63
|
71
|
53
|
91
|
77
|
21
|
26
|
24
|
44
|
36
|
51
|
54
|
70
|
56
|
42
|
56
|
65
|
62
|
57
|
|
2024/09
|
35
|
24
|
42
|
50
|
22
|
46
|
32
|
55
|
51
|
25
|
29
|
39
|
45
|
32
|
44
|
53
|
58
|
51
|
44
|
34
|
23
|
37
|
51
|
59
|
58
|
48
|
70
|
68
|
32
|
24
|
|
|
2024/08
|
40
|
50
|
41
|
38
|
33
|
38
|
22
|
32
|
39
|
52
|
22
|
27
|
32
|
45
|
39
|
42
|
49
|
44
|
37
|
37
|
43
|
46
|
57
|
55
|
53
|
21
|
30
|
37
|
45
|
49
|
55
|
|
2024/07
|
49
|
39
|
52
|
43
|
46
|
37
|
42
|
51
|
47
|
46
|
56
|
46
|
56
|
54
|
55
|
31
|
36
|
42
|
47
|
44
|
61
|
74
|
63
|
36
|
35
|
46
|
52
|
51
|
53
|
29
|
34
|
|
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