Air Quality
Excellent
No health implications.
25
PM2.5
28
PM10
30
O3
0.4
CO
6
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Dec
69
Good
Sat
13 Dec
64
Good
Sun
14 Dec
86
Good
Mon
15 Dec
100
Good
Tue
16 Dec
143
Light
Wed
17 Dec
146
Light
Thu
18 Dec
44
Excellent
Air quality in the last 12 months (Guan County)
|
2025/11
|
89
|
54
|
69
|
89
|
104
|
159
|
100
|
69
|
59
|
75
|
97
|
99
|
87
|
117
|
164
|
134
|
35
|
50
|
61
|
75
|
90
|
114
|
99
|
116
|
44
|
137
|
163
|
146
|
143
|
194
|
|
|
2025/10
|
60
|
25
|
30
|
44
|
14
|
12
|
31
|
29
|
8
|
10
|
13
|
18
|
30
|
46
|
68
|
57
|
35
|
25
|
38
|
36
|
46
|
63
|
75
|
91
|
79
|
84
|
109
|
121
|
71
|
131
|
158
|
|
2025/09
|
33
|
40
|
44
|
42
|
39
|
48
|
58
|
54
|
31
|
44
|
52
|
41
|
54
|
48
|
41
|
39
|
23
|
33
|
19
|
35
|
57
|
29
|
36
|
37
|
50
|
57
|
24
|
47
|
53
|
57
|
|
|
2025/08
|
35
|
36
|
36
|
41
|
39
|
37
|
50
|
42
|
19
|
27
|
39
|
26
|
35
|
43
|
39
|
21
|
23
|
35
|
41
|
29
|
28
|
29
|
30
|
24
|
26
|
44
|
49
|
29
|
41
|
28
|
26
|
|
2025/07
|
16
|
24
|
28
|
35
|
36
|
32
|
38
|
37
|
42
|
59
|
53
|
53
|
56
|
49
|
51
|
36
|
35
|
37
|
48
|
41
|
38
|
26
|
17
|
29
|
35
|
33
|
30
|
34
|
28
|
29
|
32
|
|
2025/06
|
73
|
69
|
46
|
48
|
76
|
78
|
103
|
86
|
80
|
52
|
73
|
68
|
58
|
61
|
40
|
30
|
42
|
55
|
24
|
37
|
44
|
45
|
47
|
49
|
58
|
46
|
52
|
31
|
17
|
25
|
|
|
2025/05
|
54
|
78
|
43
|
51
|
133
|
77
|
80
|
77
|
28
|
30
|
54
|
59
|
64
|
60
|
40
|
78
|
137
|
78
|
98
|
73
|
71
|
64
|
60
|
51
|
51
|
58
|
56
|
63
|
60
|
64
|
63
|
|
2025/04
|
73
|
43
|
63
|
87
|
56
|
81
|
98
|
85
|
73
|
91
|
91
|
167
|
69
|
53
|
58
|
108
|
177
|
89
|
35
|
67
|
60
|
69
|
74
|
67
|
72
|
79
|
71
|
55
|
61
|
76
|
|
|
2025/03
|
151
|
53
|
44
|
35
|
65
|
71
|
84
|
91
|
99
|
97
|
106
|
141
|
111
|
66
|
60
|
38
|
54
|
40
|
56
|
51
|
56
|
67
|
100
|
178
|
164
|
95
|
106
|
172
|
51
|
59
|
76
|
|
2025/02
|
83
|
124
|
68
|
41
|
53
|
100
|
80
|
36
|
61
|
71
|
100
|
125
|
101
|
85
|
88
|
61
|
59
|
68
|
55
|
65
|
81
|
54
|
46
|
62
|
68
|
91
|
111
|
134
|
|||
|
2025/01
|
149
|
72
|
93
|
170
|
144
|
51
|
57
|
52
|
49
|
63
|
91
|
67
|
81
|
117
|
55
|
68
|
83
|
96
|
115
|
106
|
194
|
82
|
85
|
155
|
89
|
80
|
35
|
63
|
158
|
112
|
69
|
|
2024/12
|
107
|
62
|
63
|
131
|
123
|
130
|
47
|
67
|
79
|
139
|
91
|
86
|
88
|
79
|
67
|
77
|
86
|
44
|
64
|
75
|
47
|
52
|
75
|
117
|
170
|
75
|
65
|
61
|
79
|
95
|
107
|
|
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