Air Quality
Excellent
No health implications.
3
PM2.5
8
PM10
67
O3
0.4
CO
4
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 May
53
Good
Wed
27 May
79
Good
Thu
28 May
82
Good
Fri
29 May
94
Good
Sat
30 May
94
Good
Sun
31 May
46
Excellent
Mon
1 Jun
30
Excellent
Air quality in the last 12 months (Guan County)
|
2026/04
|
98
|
72
|
68
|
66
|
100
|
69
|
63
|
55
|
50
|
56
|
64
|
64
|
49
|
59
|
59
|
60
|
73
|
70
|
70
|
77
|
57
|
32
|
45
|
45
|
45
|
58
|
85
|
54
|
46
|
57
|
|
|
2026/03
|
77
|
94
|
112
|
116
|
74
|
53
|
71
|
98
|
100
|
119
|
155
|
120
|
143
|
121
|
42
|
83
|
125
|
59
|
59
|
89
|
95
|
86
|
103
|
103
|
100
|
79
|
111
|
104
|
44
|
61
|
74
|
|
2026/02
|
166
|
161
|
140
|
132
|
147
|
54
|
50
|
74
|
75
|
81
|
121
|
104
|
127
|
142
|
65
|
63
|
144
|
86
|
65
|
64
|
116
|
293
|
80
|
69
|
50
|
70
|
83
|
81
|
|||
|
2026/01
|
49
|
77
|
145
|
182
|
245
|
144
|
51
|
66
|
101
|
95
|
54
|
76
|
112
|
136
|
147
|
108
|
60
|
52
|
37
|
36
|
65
|
98
|
126
|
190
|
162
|
116
|
179
|
191
|
130
|
91
|
170
|
|
2025/12
|
103
|
42
|
51
|
72
|
92
|
132
|
95
|
68
|
118
|
139
|
138
|
31
|
68
|
84
|
85
|
183
|
146
|
183
|
191
|
146
|
69
|
53
|
84
|
96
|
46
|
57
|
105
|
164
|
162
|
131
|
33
|
|
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
|
|
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