Air Quality
Excellent
No health implications.
27
PM2.5
50
PM10
86
O3
0.6
CO
4
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
44
Excellent
Wed
1 May
66
Good
Thu
2 May
78
Good
Fri
3 May
60
Good
Sat
4 May
55
Good
Sun
5 May
75
Good
Mon
6 May
75
Good
Air quality in the last 12 months (Guichi)
|
2024/02
|
16
|
23
|
29
|
43
|
79
|
112
|
107
|
148
|
126
|
110
|
78
|
61
|
39
|
42
|
45
|
24
|
30
|
38
|
57
|
14
|
16
|
34
|
55
|
67
|
75
|
99
|
98
|
81
|
50
|
||
|
2024/01
|
188
|
141
|
77
|
56
|
55
|
109
|
148
|
109
|
109
|
188
|
100
|
62
|
63
|
132
|
91
|
69
|
57
|
22
|
21
|
58
|
93
|
45
|
26
|
43
|
58
|
67
|
79
|
74
|
105
|
95
|
66
|
|
2023/12
|
41
|
55
|
69
|
80
|
63
|
74
|
72
|
56
|
53
|
73
|
12
|
44
|
54
|
48
|
21
|
43
|
34
|
51
|
77
|
100
|
52
|
57
|
50
|
57
|
64
|
56
|
119
|
291
|
229
|
148
|
99
|
|
2023/11
|
52
|
44
|
49
|
100
|
68
|
26
|
35
|
36
|
37
|
26
|
31
|
42
|
60
|
66
|
61
|
72
|
109
|
57
|
51
|
60
|
46
|
44
|
82
|
62
|
66
|
69
|
57
|
66
|
83
|
53
|
|
|
2023/10
|
37
|
33
|
27
|
30
|
41
|
41
|
23
|
27
|
34
|
47
|
65
|
51
|
52
|
45
|
53
|
60
|
54
|
54
|
79
|
30
|
39
|
41
|
48
|
49
|
64
|
74
|
85
|
85
|
67
|
68
|
55
|
|
2023/09
|
38
|
45
|
51
|
45
|
34
|
38
|
41
|
52
|
51
|
60
|
62
|
42
|
22
|
24
|
29
|
26
|
33
|
38
|
41
|
25
|
24
|
19
|
18
|
36
|
48
|
47
|
55
|
61
|
58
|
30
|
|
|
2023/08
|
26
|
25
|
33
|
44
|
39
|
35
|
37
|
36
|
43
|
49
|
52
|
46
|
36
|
29
|
42
|
47
|
44
|
60
|
44
|
30
|
28
|
28
|
42
|
59
|
73
|
50
|
26
|
21
|
28
|
30
|
30
|
|
2023/07
|
29
|
26
|
20
|
20
|
34
|
25
|
25
|
21
|
18
|
26
|
27
|
27
|
26
|
30
|
34
|
34
|
37
|
38
|
20
|
19
|
20
|
13
|
17
|
28
|
33
|
28
|
22
|
15
|
12
|
16
|
20
|
|
2023/06
|
51
|
67
|
65
|
70
|
30
|
31
|
36
|
36
|
45
|
48
|
56
|
64
|
50
|
70
|
61
|
50
|
33
|
24
|
19
|
30
|
52
|
45
|
25
|
19
|
26
|
28
|
21
|
19
|
18
|
22
|
|
|
2023/05
|
67
|
54
|
51
|
31
|
25
|
35
|
34
|
39
|
51
|
53
|
44
|
43
|
47
|
54
|
50
|
46
|
31
|
33
|
35
|
58
|
76
|
122
|
83
|
45
|
41
|
51
|
23
|
33
|
45
|
44
|
40
|
|
2023/04
|
47
|
52
|
37
|
26
|
27
|
28
|
36
|
57
|
52
|
59
|
73
|
394
|
122
|
58
|
114
|
82
|
68
|
61
|
61
|
38
|
46
|
62
|
38
|
33
|
50
|
42
|
33
|
40
|
102
|
83
|
|
|
2023/03
|
87
|
118
|
80
|
78
|
64
|
60
|
54
|
63
|
57
|
49
|
56
|
104
|
73
|
61
|
78
|
102
|
30
|
42
|
42
|
28
|
22
|
19
|
26
|
123
|
50
|
74
|
95
|
80
|
69
|
53
|
31
|
|
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