Air Quality
Excellent
No health implications.
14
PM2.5
44
PM10
69
O3
0.3
CO
7
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
87
Good
Mon
5 May
100
Good
Tue
6 May
85
Good
Wed
7 May
95
Good
Thu
8 May
101
Light
Fri
9 May
47
Excellent
Sat
10 May
16
Excellent
Air quality in the last 12 months (Guan County)
|
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
|
|
2024/11
|
71
|
73
|
114
|
54
|
46
|
67
|
65
|
54
|
55
|
99
|
150
|
177
|
138
|
80
|
71
|
76
|
59
|
47
|
52
|
77
|
91
|
78
|
68
|
59
|
52
|
31
|
50
|
48
|
48
|
74
|
|
|
2024/10
|
44
|
27
|
48
|
69
|
65
|
69
|
97
|
78
|
115
|
105
|
74
|
100
|
101
|
133
|
157
|
84
|
82
|
21
|
23
|
25
|
47
|
66
|
80
|
78
|
98
|
120
|
135
|
69
|
124
|
184
|
193
|
|
2024/09
|
44
|
25
|
36
|
46
|
33
|
27
|
49
|
56
|
52
|
26
|
23
|
29
|
30
|
36
|
29
|
41
|
44
|
44
|
55
|
47
|
17
|
27
|
44
|
66
|
71
|
120
|
98
|
67
|
57
|
25
|
|
|
2024/08
|
28
|
25
|
27
|
27
|
30
|
28
|
31
|
32
|
37
|
62
|
45
|
30
|
30
|
38
|
49
|
54
|
46
|
29
|
13
|
29
|
35
|
49
|
46
|
55
|
57
|
24
|
17
|
31
|
44
|
46
|
45
|
|
2024/07
|
27
|
44
|
43
|
34
|
22
|
19
|
25
|
30
|
49
|
61
|
71
|
50
|
72
|
97
|
78
|
41
|
57
|
39
|
28
|
12
|
33
|
31
|
23
|
43
|
17
|
22
|
30
|
18
|
13
|
21
|
16
|
|
2024/06
|
49
|
81
|
74
|
84
|
85
|
84
|
79
|
60
|
70
|
74
|
77
|
69
|
97
|
65
|
58
|
47
|
47
|
57
|
52
|
56
|
55
|
53
|
115
|
87
|
79
|
71
|
49
|
60
|
40
|
40
|
|
|
2024/05
|
50
|
58
|
52
|
45
|
56
|
68
|
67
|
67
|
68
|
67
|
162
|
98
|
97
|
90
|
36
|
59
|
68
|
81
|
70
|
54
|
60
|
60
|
63
|
64
|
69
|
64
|
44
|
51
|
64
|
60
|
62
|
|
2024/04
|
106
|
85
|
51
|
46
|
72
|
66
|
63
|
78
|
70
|
101
|
86
|
62
|
65
|
40
|
80
|
99
|
93
|
86
|
84
|
74
|
87
|
87
|
73
|
84
|
90
|
76
|
64
|
70
|
50
|
48
|
|
|
2024/03
|
65
|
93
|
89
|
114
|
94
|
69
|
92
|
38
|
66
|
81
|
103
|
104
|
90
|
103
|
68
|
85
|
91
|
101
|
101
|
80
|
108
|
106
|
104
|
84
|
44
|
64
|
56
|
190
|
165
|
106
|
89
|
|
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