Air Quality
Excellent
No health implications.
5
PM2.5
10
PM10
79
O3
0.4
CO
2
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 May
93
Good
Sun
11 May
97
Good
Mon
12 May
98
Good
Tue
13 May
105
Light
Wed
14 May
93
Good
Thu
15 May
92
Good
Fri
16 May
16
Excellent
Air quality in the last 12 months (Cao County)
|
2025/02
|
107
|
144
|
141
|
74
|
58
|
73
|
72
|
44
|
60
|
70
|
108
|
142
|
108
|
83
|
85
|
72
|
65
|
74
|
84
|
63
|
66
|
104
|
80
|
54
|
73
|
98
|
102
|
109
|
|||
|
2025/01
|
162
|
126
|
122
|
189
|
140
|
64
|
65
|
62
|
53
|
68
|
95
|
70
|
90
|
158
|
59
|
66
|
94
|
116
|
133
|
124
|
181
|
205
|
107
|
179
|
136
|
81
|
43
|
58
|
255
|
144
|
94
|
|
2024/12
|
83
|
78
|
73
|
124
|
167
|
182
|
87
|
55
|
61
|
114
|
126
|
98
|
104
|
87
|
69
|
91
|
107
|
48
|
62
|
97
|
66
|
56
|
79
|
120
|
169
|
140
|
78
|
82
|
80
|
108
|
114
|
|
2024/11
|
137
|
97
|
122
|
74
|
55
|
73
|
61
|
49
|
60
|
77
|
152
|
144
|
122
|
92
|
99
|
78
|
54
|
50
|
44
|
68
|
110
|
128
|
71
|
54
|
52
|
46
|
61
|
52
|
47
|
71
|
|
|
2024/10
|
44
|
36
|
46
|
50
|
49
|
58
|
104
|
86
|
89
|
109
|
70
|
103
|
94
|
120
|
134
|
97
|
53
|
16
|
29
|
35
|
55
|
83
|
85
|
66
|
95
|
83
|
121
|
124
|
143
|
142
|
124
|
|
2024/09
|
44
|
33
|
38
|
43
|
45
|
31
|
45
|
44
|
41
|
39
|
30
|
29
|
53
|
50
|
42
|
52
|
47
|
12
|
41
|
47
|
20
|
33
|
51
|
47
|
56
|
69
|
74
|
47
|
45
|
28
|
|
|
2024/08
|
21
|
19
|
27
|
26
|
18
|
11
|
24
|
18
|
32
|
63
|
95
|
44
|
42
|
44
|
34
|
45
|
44
|
38
|
16
|
28
|
41
|
38
|
46
|
50
|
50
|
39
|
22
|
34
|
38
|
31
|
41
|
|
2024/07
|
36
|
33
|
33
|
15
|
21
|
17
|
23
|
17
|
31
|
63
|
53
|
45
|
58
|
43
|
33
|
13
|
19
|
24
|
23
|
12
|
25
|
26
|
27
|
36
|
41
|
30
|
20
|
11
|
16
|
19
|
20
|
|
2024/06
|
56
|
87
|
96
|
87
|
77
|
70
|
53
|
61
|
56
|
61
|
52
|
58
|
63
|
59
|
58
|
44
|
43
|
48
|
50
|
56
|
43
|
46
|
70
|
108
|
89
|
57
|
57
|
42
|
22
|
30
|
|
|
2024/05
|
51
|
50
|
53
|
47
|
62
|
69
|
63
|
60
|
60
|
72
|
208
|
107
|
91
|
80
|
82
|
64
|
69
|
66
|
61
|
66
|
54
|
46
|
48
|
66
|
70
|
59
|
41
|
49
|
59
|
73
|
95
|
|
2024/04
|
82
|
98
|
63
|
48
|
60
|
57
|
57
|
64
|
84
|
79
|
54
|
56
|
59
|
25
|
43
|
80
|
87
|
72
|
78
|
77
|
79
|
75
|
92
|
97
|
81
|
73
|
56
|
51
|
64
|
56
|
|
|
2024/03
|
71
|
91
|
87
|
107
|
130
|
88
|
111
|
54
|
53
|
86
|
92
|
97
|
84
|
72
|
60
|
96
|
117
|
87
|
102
|
90
|
88
|
93
|
85
|
57
|
51
|
53
|
55
|
86
|
73
|
85
|
85
|
|
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