Air Quality
Excellent
No health implications.
21
PM2.5
34
PM10
64
O3
0.4
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Jul
72
Good
Fri
25 Jul
90
Good
Sat
26 Jul
97
Good
Sun
27 Jul
108
Light
Mon
28 Jul
80
Good
Tue
29 Jul
74
Good
Wed
30 Jul
15
Excellent
Gu'an Air quality rank
Air quality in the last 12 months (Gu'an)
|
2025/06
|
71
|
49
|
21
|
33
|
59
|
55
|
50
|
55
|
57
|
39
|
60
|
76
|
71
|
45
|
20
|
23
|
55
|
71
|
42
|
34
|
34
|
47
|
67
|
69
|
68
|
65
|
59
|
54
|
52
|
41
|
|
|
2025/05
|
41
|
57
|
36
|
59
|
59
|
37
|
80
|
91
|
34
|
41
|
59
|
71
|
73
|
40
|
46
|
71
|
62
|
56
|
74
|
101
|
75
|
63
|
60
|
41
|
58
|
66
|
63
|
66
|
69
|
70
|
71
|
|
2025/04
|
57
|
26
|
64
|
92
|
31
|
72
|
71
|
51
|
56
|
81
|
128
|
130
|
57
|
42
|
58
|
92
|
79
|
51
|
50
|
72
|
85
|
37
|
63
|
44
|
62
|
92
|
66
|
67
|
65
|
63
|
|
|
2025/03
|
234
|
73
|
37
|
51
|
75
|
26
|
86
|
121
|
142
|
136
|
181
|
99
|
120
|
75
|
50
|
21
|
42
|
37
|
46
|
41
|
38
|
56
|
112
|
89
|
50
|
81
|
61
|
37
|
25
|
48
|
69
|
|
2025/02
|
78
|
65
|
14
|
22
|
26
|
67
|
21
|
15
|
33
|
103
|
140
|
46
|
72
|
84
|
103
|
33
|
27
|
51
|
34
|
38
|
28
|
24
|
24
|
55
|
61
|
62
|
136
|
180
|
|||
|
2025/01
|
74
|
34
|
48
|
83
|
76
|
22
|
30
|
21
|
20
|
41
|
47
|
41
|
76
|
48
|
32
|
52
|
76
|
112
|
59
|
87
|
76
|
58
|
70
|
108
|
132
|
109
|
21
|
40
|
196
|
82
|
77
|
|
2024/12
|
96
|
24
|
58
|
73
|
55
|
34
|
19
|
42
|
64
|
52
|
53
|
87
|
46
|
36
|
47
|
54
|
29
|
23
|
60
|
57
|
24
|
36
|
53
|
90
|
101
|
32
|
33
|
44
|
77
|
73
|
59
|
|
2024/11
|
119
|
89
|
60
|
26
|
55
|
68
|
118
|
147
|
132
|
126
|
98
|
124
|
101
|
45
|
59
|
53
|
41
|
58
|
65
|
86
|
45
|
37
|
53
|
114
|
58
|
20
|
22
|
28
|
47
|
58
|
|
|
2024/10
|
15
|
22
|
45
|
66
|
84
|
96
|
37
|
50
|
110
|
31
|
71
|
112
|
127
|
121
|
68
|
54
|
65
|
46
|
20
|
39
|
57
|
37
|
55
|
101
|
152
|
204
|
64
|
62
|
113
|
160
|
171
|
|
2024/09
|
33
|
19
|
43
|
59
|
31
|
31
|
39
|
41
|
61
|
26
|
29
|
31
|
46
|
36
|
40
|
54
|
51
|
53
|
53
|
31
|
12
|
19
|
42
|
63
|
52
|
50
|
48
|
63
|
74
|
11
|
|
|
2024/08
|
32
|
45
|
35
|
26
|
17
|
38
|
48
|
42
|
46
|
47
|
35
|
16
|
18
|
32
|
48
|
44
|
47
|
26
|
29
|
23
|
23
|
32
|
44
|
35
|
41
|
18
|
21
|
35
|
45
|
58
|
55
|
|
2024/07
|
35
|
39
|
44
|
66
|
69
|
30
|
54
|
35
|
63
|
66
|
71
|
59
|
58
|
77
|
55
|
42
|
31
|
38
|
52
|
37
|
46
|
38
|
54
|
47
|
19
|
24
|
35
|
30
|
38
|
15
|
30
|
|
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