Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
70
*
PM2.5
137
PM10
149
O3
0.9
CO
4
SO2
18
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
18 May
150
Lightly
Sun
19 May
127
Lightly
Mon
20 May
77
Good
Tue
21 May
119
Lightly
Wed
22 May
148
Lightly
Thu
23 May
80
Good
Fri
24 May
80
Good
Air quality in the last 12 months (Gu'an)
|
2024/02
|
55
|
74
|
106
|
97
|
112
|
96
|
42
|
73
|
159
|
53
|
96
|
148
|
183
|
121
|
34
|
67
|
84
|
95
|
45
|
35
|
28
|
25
|
44
|
75
|
72
|
86
|
72
|
88
|
44
|
||
|
2024/01
|
125
|
176
|
84
|
127
|
75
|
33
|
31
|
70
|
66
|
82
|
135
|
171
|
104
|
36
|
53
|
91
|
104
|
87
|
58
|
60
|
32
|
22
|
24
|
38
|
52
|
53
|
46
|
68
|
105
|
126
|
104
|
|
2023/12
|
52
|
68
|
80
|
108
|
147
|
154
|
169
|
175
|
97
|
49
|
39
|
85
|
90
|
63
|
22
|
21
|
42
|
97
|
63
|
19
|
25
|
53
|
77
|
90
|
129
|
114
|
47
|
81
|
186
|
227
|
57
|
|
2023/11
|
176
|
123
|
49
|
73
|
42
|
48
|
52
|
65
|
35
|
24
|
35
|
30
|
53
|
84
|
143
|
43
|
29
|
57
|
70
|
97
|
189
|
174
|
47
|
35
|
63
|
72
|
70
|
36
|
28
|
37
|
|
|
2023/10
|
39
|
59
|
60
|
39
|
34
|
59
|
66
|
63
|
37
|
36
|
62
|
84
|
68
|
34
|
51
|
50
|
67
|
34
|
25
|
25
|
44
|
64
|
113
|
153
|
129
|
53
|
72
|
112
|
154
|
136
|
145
|
|
2023/09
|
51
|
56
|
54
|
77
|
94
|
90
|
83
|
86
|
29
|
34
|
52
|
35
|
46
|
54
|
66
|
75
|
72
|
60
|
38
|
35
|
50
|
39
|
40
|
39
|
48
|
69
|
62
|
45
|
76
|
26
|
|
|
2023/08
|
30
|
35
|
53
|
51
|
40
|
38
|
43
|
54
|
62
|
71
|
57
|
30
|
38
|
47
|
50
|
65
|
61
|
62
|
77
|
56
|
39
|
36
|
40
|
28
|
41
|
40
|
44
|
38
|
40
|
49
|
52
|
|
2023/07
|
78
|
90
|
72
|
41
|
56
|
84
|
65
|
42
|
40
|
83
|
63
|
42
|
33
|
40
|
32
|
42
|
67
|
74
|
81
|
66
|
49
|
34
|
41
|
65
|
59
|
62
|
56
|
37
|
36
|
14
|
22
|
|
2023/06
|
64
|
45
|
60
|
53
|
70
|
48
|
66
|
61
|
44
|
38
|
53
|
51
|
43
|
80
|
103
|
98
|
98
|
93
|
52
|
56
|
52
|
76
|
83
|
70
|
76
|
53
|
73
|
46
|
60
|
84
|
|
|
2023/05
|
74
|
77
|
85
|
46
|
30
|
36
|
48
|
61
|
58
|
68
|
82
|
66
|
46
|
73
|
98
|
83
|
61
|
53
|
82
|
116
|
85
|
49
|
54
|
74
|
63
|
68
|
73
|
47
|
69
|
57
|
63
|
|
2023/04
|
82
|
95
|
80
|
46
|
37
|
45
|
33
|
45
|
87
|
163
|
376
|
394
|
436
|
176
|
97
|
55
|
84
|
85
|
84
|
110
|
42
|
25
|
52
|
51
|
68
|
55
|
77
|
63
|
54
|
51
|
|
|
2023/03
|
45
|
68
|
81
|
160
|
201
|
202
|
200
|
140
|
91
|
240
|
160
|
55
|
84
|
163
|
104
|
60
|
74
|
53
|
85
|
128
|
124
|
341
|
126
|
74
|
70
|
73
|
62
|
96
|
117
|
100
|
80
|
|
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