Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
24
PM2.5
133
*
PM10
121
O3
0.4
CO
6
SO2
15
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
29 Apr
94
Good
Wed
30 Apr
102
Light
Thu
1 May
97
Good
Fri
2 May
95
Good
Sat
3 May
88
Good
Sun
4 May
92
Good
Mon
5 May
19
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