Air Quality
Excellent
No health implications.
10
PM2.5
18
PM10
70
O3
0.6
CO
4
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 May
61
Good
Sun
17 May
62
Good
Mon
18 May
74
Good
Tue
19 May
77
Good
Wed
20 May
79
Good
Thu
21 May
68
Good
Fri
22 May
17
Excellent
Air quality in the last 12 months (Lan County)
|
2026/04
|
47
|
53
|
113
|
54
|
96
|
43
|
59
|
64
|
82
|
47
|
52
|
58
|
55
|
63
|
68
|
47
|
56
|
56
|
158
|
60
|
65
|
64
|
67
|
66
|
64
|
62
|
138
|
38
|
49
|
51
|
|
|
2026/03
|
55
|
44
|
87
|
82
|
62
|
34
|
58
|
78
|
63
|
75
|
45
|
65
|
118
|
50
|
53
|
70
|
84
|
48
|
46
|
58
|
78
|
70
|
67
|
72
|
77
|
67
|
68
|
61
|
48
|
51
|
37
|
|
2026/02
|
60
|
44
|
60
|
71
|
66
|
64
|
42
|
52
|
69
|
88
|
76
|
86
|
73
|
73
|
40
|
80
|
135
|
61
|
52
|
89
|
308
|
254
|
83
|
103
|
78
|
78
|
77
|
42
|
|||
|
2026/01
|
68
|
73
|
80
|
90
|
60
|
42
|
66
|
69
|
131
|
65
|
48
|
82
|
89
|
158
|
153
|
77
|
87
|
85
|
42
|
39
|
51
|
57
|
64
|
67
|
146
|
127
|
90
|
100
|
122
|
169
|
115
|
|
2025/12
|
68
|
37
|
40
|
51
|
71
|
70
|
96
|
65
|
71
|
83
|
68
|
57
|
61
|
77
|
71
|
69
|
71
|
74
|
72
|
62
|
52
|
77
|
102
|
60
|
44
|
48
|
65
|
56
|
53
|
55
|
66
|
|
2025/11
|
39
|
39
|
68
|
73
|
93
|
106
|
40
|
75
|
65
|
65
|
70
|
59
|
52
|
58
|
68
|
45
|
25
|
34
|
58
|
57
|
59
|
60
|
81
|
132
|
70
|
194
|
115
|
97
|
86
|
92
|
|
|
2025/10
|
54
|
33
|
37
|
49
|
56
|
29
|
34
|
15
|
9
|
12
|
41
|
33
|
37
|
49
|
45
|
58
|
30
|
43
|
38
|
50
|
60
|
73
|
66
|
69
|
82
|
40
|
42
|
60
|
72
|
76
|
51
|
|
2025/09
|
45
|
49
|
36
|
36
|
39
|
58
|
56
|
50
|
54
|
57
|
47
|
28
|
50
|
54
|
61
|
26
|
26
|
21
|
25
|
45
|
39
|
21
|
40
|
42
|
51
|
52
|
36
|
41
|
58
|
59
|
|
|
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
|
|
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