Air Quality
Excellent
No health implications.
20
PM2.5
31
PM10
81
O3
0.6
CO
5
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
73
Good
Mon
28 Jul
70
Good
Tue
29 Jul
80
Good
Wed
30 Jul
87
Good
Thu
31 Jul
87
Good
Fri
1 Aug
94
Good
Sat
2 Aug
37
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