Air Quality
Excellent
No health implications.
6
PM2.5
14
PM10
107
O3
0.2
CO
2
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jun
96
Good
Mon
30 Jun
101
Light
Tue
1 Jul
106
Light
Wed
2 Jul
117
Light
Thu
3 Jul
121
Light
Fri
4 Jul
35
Excellent
Sat
5 Jul
48
Excellent
Air quality in the last 12 months (Cao County)
|
2025/05
|
58
|
89
|
47
|
50
|
106
|
118
|
78
|
66
|
42
|
28
|
51
|
54
|
55
|
60
|
64
|
85
|
130
|
81
|
92
|
68
|
63
|
68
|
71
|
57
|
53
|
55
|
59
|
60
|
57
|
66
|
70
|
|
2025/04
|
71
|
53
|
55
|
75
|
79
|
81
|
82
|
88
|
100
|
101
|
79
|
202
|
90
|
60
|
61
|
83
|
100
|
95
|
43
|
63
|
54
|
71
|
88
|
75
|
68
|
62
|
66
|
51
|
55
|
78
|
|
|
2025/03
|
160
|
43
|
32
|
35
|
60
|
87
|
78
|
84
|
103
|
99
|
106
|
157
|
106
|
61
|
70
|
43
|
50
|
52
|
62
|
54
|
52
|
68
|
90
|
233
|
131
|
93
|
107
|
124
|
60
|
59
|
76
|
|
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
|
|
|
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