Air Quality
Excellent
No health implications.
32
PM2.5
49
PM10
72
O3
0.4
CO
6
SO2
29
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 May
101
Light
Tue
13 May
99
Good
Wed
14 May
94
Good
Thu
15 May
54
Good
Fri
16 May
61
Good
Sat
17 May
85
Good
Sun
18 May
54
Good
Air quality in the last 12 months (Guichi)
|
2025/02
|
60
|
59
|
102
|
71
|
43
|
51
|
76
|
48
|
43
|
50
|
82
|
110
|
82
|
86
|
94
|
73
|
82
|
51
|
69
|
54
|
35
|
58
|
91
|
103
|
94
|
107
|
60
|
37
|
|||
|
2025/01
|
104
|
133
|
197
|
137
|
118
|
77
|
64
|
63
|
61
|
51
|
61
|
79
|
77
|
95
|
66
|
53
|
60
|
69
|
66
|
126
|
129
|
149
|
211
|
63
|
38
|
51
|
45
|
53
|
137
|
73
|
90
|
|
2024/12
|
50
|
57
|
112
|
64
|
63
|
72
|
133
|
63
|
67
|
82
|
81
|
96
|
85
|
74
|
55
|
62
|
79
|
102
|
48
|
69
|
109
|
65
|
89
|
109
|
129
|
153
|
99
|
107
|
64
|
84
|
105
|
|
2024/11
|
24
|
45
|
38
|
57
|
42
|
51
|
39
|
47
|
53
|
47
|
47
|
52
|
46
|
54
|
62
|
62
|
18
|
27
|
37
|
53
|
48
|
58
|
55
|
46
|
36
|
39
|
57
|
62
|
47
|
52
|
|
|
2024/10
|
24
|
43
|
33
|
34
|
37
|
16
|
12
|
38
|
43
|
46
|
54
|
58
|
60
|
44
|
36
|
28
|
23
|
30
|
23
|
38
|
51
|
31
|
44
|
42
|
41
|
27
|
16
|
54
|
48
|
37
|
34
|
|
2024/09
|
39
|
42
|
40
|
46
|
41
|
35
|
51
|
51
|
39
|
39
|
19
|
14
|
38
|
40
|
31
|
30
|
22
|
30
|
33
|
23
|
29
|
34
|
39
|
44
|
48
|
62
|
27
|
32
|
41
|
48
|
|
|
2024/08
|
15
|
20
|
27
|
26
|
28
|
27
|
29
|
32
|
36
|
35
|
32
|
31
|
29
|
24
|
25
|
41
|
43
|
46
|
23
|
19
|
32
|
30
|
36
|
42
|
42
|
46
|
21
|
13
|
28
|
36
|
39
|
|
2024/07
|
12
|
13
|
19
|
16
|
17
|
15
|
15
|
19
|
23
|
27
|
34
|
29
|
10
|
10
|
31
|
41
|
21
|
17
|
18
|
17
|
24
|
27
|
34
|
36
|
26
|
23
|
12
|
14
|
20
|
21
|
24
|
|
2024/06
|
21
|
33
|
33
|
43
|
31
|
28
|
24
|
34
|
43
|
19
|
18
|
27
|
31
|
31
|
39
|
47
|
31
|
31
|
11
|
16
|
19
|
8
|
12
|
21
|
19
|
27
|
9
|
9
|
17
|
11
|
|
|
2024/05
|
25
|
31
|
43
|
36
|
19
|
20
|
39
|
51
|
51
|
51
|
37
|
73
|
73
|
51
|
62
|
50
|
50
|
57
|
58
|
61
|
36
|
27
|
41
|
39
|
33
|
18
|
21
|
22
|
34
|
31
|
24
|
|
2024/04
|
40
|
16
|
29
|
39
|
46
|
39
|
30
|
18
|
27
|
51
|
59
|
54
|
45
|
35
|
44
|
62
|
52
|
37
|
32
|
38
|
29
|
39
|
40
|
90
|
64
|
55
|
59
|
33
|
22
|
34
|
|
|
2024/03
|
57
|
54
|
42
|
43
|
41
|
61
|
67
|
62
|
72
|
95
|
69
|
74
|
93
|
69
|
73
|
64
|
60
|
66
|
48
|
69
|
62
|
56
|
48
|
61
|
22
|
39
|
46
|
24
|
37
|
46
|
69
|
|
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