Air Quality
Excellent
No health implications.
11
PM2.5
49
PM10
114
O3
0.3
CO
6
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 Sep
65
Good
Sun
7 Sep
70
Good
Mon
8 Sep
68
Good
Tue
9 Sep
79
Good
Wed
10 Sep
77
Good
Thu
11 Sep
71
Good
Fri
12 Sep
21
Excellent
Air quality in the last 12 months (Lan County)
|
2025/08
|
56
|
52
|
52
|
35
|
33
|
41
|
40
|
42
|
25
|
34
|
38
|
45
|
42
|
52
|
42
|
26
|
34
|
43
|
39
|
30
|
24
|
34
|
15
|
32
|
38
|
31
|
26
|
26
|
31
|
42
|
46
|
|
2025/07
|
32
|
38
|
28
|
30
|
17
|
30
|
33
|
39
|
33
|
44
|
56
|
60
|
53
|
47
|
59
|
34
|
31
|
42
|
51
|
35
|
29
|
42
|
37
|
25
|
33
|
32
|
28
|
47
|
22
|
35
|
46
|
|
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
|
|
|
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