Air Quality
Excellent
No health implications.
28
PM2.5
37
PM10
52
O3
0.5
CO
4
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Apr
82
Good
Thu
9 Apr
75
Good
Fri
10 Apr
94
Good
Sat
11 Apr
98
Good
Sun
12 Apr
87
Good
Mon
13 Apr
90
Good
Tue
14 Apr
22
Excellent
Air quality in the last 12 months (Cao County)
|
2026/02
|
113
|
157
|
131
|
116
|
168
|
66
|
62
|
70
|
63
|
84
|
124
|
97
|
125
|
109
|
110
|
50
|
103
|
85
|
88
|
71
|
63
|
355
|
119
|
43
|
52
|
68
|
123
|
116
|
|||
|
2026/01
|
44
|
75
|
102
|
110
|
249
|
99
|
54
|
69
|
68
|
93
|
55
|
71
|
100
|
188
|
96
|
113
|
69
|
52
|
51
|
36
|
55
|
81
|
114
|
150
|
191
|
164
|
205
|
114
|
114
|
125
|
118
|
|
2025/12
|
139
|
80
|
53
|
94
|
110
|
123
|
95
|
83
|
80
|
103
|
169
|
42
|
63
|
83
|
64
|
151
|
181
|
167
|
200
|
178
|
76
|
41
|
79
|
91
|
69
|
52
|
86
|
117
|
187
|
171
|
71
|
|
2025/11
|
115
|
89
|
60
|
83
|
102
|
76
|
66
|
90
|
73
|
77
|
63
|
78
|
121
|
168
|
164
|
146
|
40
|
53
|
58
|
86
|
156
|
92
|
82
|
112
|
60
|
112
|
243
|
126
|
100
|
130
|
|
|
2025/10
|
29
|
8
|
23
|
29
|
13
|
11
|
38
|
48
|
12
|
12
|
18
|
19
|
24
|
37
|
40
|
52
|
21
|
38
|
42
|
42
|
45
|
62
|
84
|
82
|
79
|
96
|
107
|
90
|
71
|
84
|
204
|
|
2025/09
|
26
|
32
|
34
|
40
|
42
|
35
|
50
|
20
|
25
|
34
|
25
|
20
|
44
|
30
|
24
|
15
|
22
|
22
|
12
|
25
|
40
|
29
|
17
|
25
|
35
|
28
|
19
|
18
|
33
|
37
|
|
|
2025/08
|
27
|
24
|
25
|
33
|
34
|
29
|
28
|
28
|
20
|
23
|
22
|
21
|
26
|
28
|
29
|
26
|
31
|
30
|
35
|
24
|
27
|
30
|
21
|
30
|
34
|
36
|
32
|
34
|
30
|
37
|
21
|
|
2025/07
|
20
|
30
|
22
|
25
|
32
|
36
|
39
|
34
|
22
|
49
|
57
|
37
|
40
|
44
|
40
|
42
|
35
|
35
|
44
|
34
|
21
|
26
|
21
|
28
|
29
|
29
|
27
|
26
|
18
|
34
|
37
|
|
2025/06
|
49
|
51
|
63
|
70
|
67
|
64
|
71
|
89
|
58
|
60
|
55
|
46
|
44
|
53
|
48
|
49
|
50
|
41
|
19
|
29
|
44
|
32
|
43
|
45
|
60
|
22
|
29
|
22
|
12
|
17
|
|
|
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
|
|
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