Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
50
PM2.5
134
*
PM10
75
O3
0.7
CO
6
SO2
34
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 May
100
Good
Mon
20 May
90
Good
Tue
21 May
101
Lightly
Wed
22 May
102
Lightly
Thu
23 May
114
Lightly
Fri
24 May
102
Lightly
Air quality in the last 12 months (Lan County)
|
2024/02
|
108
|
129
|
141
|
90
|
95
|
91
|
72
|
84
|
94
|
169
|
71
|
71
|
73
|
72
|
66
|
64
|
64
|
93
|
157
|
63
|
42
|
43
|
61
|
74
|
98
|
84
|
98
|
99
|
52
|
||
|
2024/01
|
87
|
83
|
61
|
65
|
64
|
46
|
57
|
79
|
73
|
70
|
80
|
83
|
87
|
60
|
67
|
92
|
150
|
138
|
116
|
55
|
21
|
32
|
46
|
53
|
59
|
57
|
61
|
62
|
67
|
106
|
114
|
|
2023/12
|
48
|
52
|
61
|
60
|
115
|
278
|
95
|
93
|
72
|
71
|
57
|
106
|
93
|
44
|
32
|
29
|
50
|
89
|
66
|
42
|
40
|
64
|
70
|
75
|
76
|
97
|
121
|
147
|
173
|
144
|
62
|
|
2023/11
|
78
|
91
|
74
|
61
|
43
|
42
|
51
|
61
|
51
|
58
|
56
|
39
|
60
|
63
|
81
|
64
|
51
|
61
|
69
|
72
|
83
|
72
|
38
|
48
|
78
|
97
|
79
|
51
|
35
|
41
|
|
|
2023/10
|
49
|
62
|
60
|
51
|
51
|
42
|
60
|
44
|
43
|
55
|
69
|
79
|
61
|
52
|
63
|
66
|
77
|
52
|
50
|
44
|
51
|
57
|
73
|
79
|
72
|
65
|
63
|
70
|
77
|
69
|
72
|
|
2023/09
|
60
|
55
|
47
|
56
|
58
|
66
|
74
|
71
|
35
|
38
|
50
|
46
|
56
|
64
|
55
|
52
|
44
|
40
|
52
|
52
|
48
|
54
|
48
|
37
|
42
|
60
|
61
|
54
|
60
|
40
|
|
|
2023/08
|
37
|
44
|
46
|
44
|
36
|
50
|
60
|
59
|
57
|
65
|
51
|
35
|
46
|
56
|
65
|
67
|
153
|
85
|
70
|
67
|
52
|
57
|
45
|
40
|
46
|
27
|
24
|
33
|
47
|
48
|
56
|
|
2023/07
|
62
|
70
|
44
|
45
|
61
|
60
|
40
|
35
|
40
|
49
|
72
|
53
|
36
|
53
|
35
|
42
|
59
|
64
|
72
|
68
|
48
|
42
|
51
|
53
|
53
|
57
|
49
|
33
|
39
|
21
|
22
|
|
2023/06
|
48
|
41
|
44
|
44
|
50
|
52
|
52
|
43
|
50
|
43
|
48
|
52
|
48
|
64
|
62
|
62
|
57
|
55
|
46
|
48
|
46
|
63
|
66
|
62
|
65
|
63
|
55
|
36
|
47
|
57
|
|
|
2023/05
|
67
|
84
|
68
|
41
|
43
|
21
|
39
|
49
|
56
|
48
|
61
|
61
|
57
|
76
|
76
|
75
|
72
|
69
|
84
|
124
|
60
|
48
|
54
|
45
|
82
|
83
|
42
|
44
|
46
|
40
|
48
|
|
2023/04
|
83
|
72
|
26
|
32
|
36
|
47
|
44
|
59
|
120
|
242
|
392
|
167
|
104
|
331
|
91
|
102
|
116
|
166
|
152
|
224
|
30
|
32
|
33
|
29
|
39
|
62
|
73
|
149
|
75
|
52
|
|
|
2023/03
|
54
|
67
|
72
|
76
|
85
|
81
|
85
|
115
|
83
|
163
|
217
|
83
|
82
|
102
|
61
|
81
|
64
|
79
|
87
|
82
|
121
|
452
|
306
|
148
|
92
|
60
|
65
|
75
|
71
|
84
|
83
|
|
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