Air Quality
Excellent
No health implications.
22
PM2.5
50
PM10
110
O3
0.8
CO
13
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Apr
89
Good
Fri
4 Apr
94
Good
Sat
5 Apr
56
Good
Sun
6 Apr
89
Good
Mon
7 Apr
88
Good
Tue
8 Apr
59
Good
Wed
9 Apr
37
Excellent
Air quality in the last 12 months (Chaoyang County)
|
2025/02
|
86
|
88
|
41
|
26
|
30
|
64
|
52
|
29
|
50
|
70
|
89
|
70
|
84
|
70
|
78
|
39
|
28
|
26
|
41
|
40
|
31
|
39
|
33
|
53
|
60
|
60
|
87
|
132
|
|||
|
2025/01
|
51
|
40
|
48
|
76
|
83
|
55
|
40
|
38
|
27
|
64
|
74
|
76
|
69
|
41
|
34
|
48
|
63
|
70
|
55
|
70
|
68
|
70
|
109
|
132
|
122
|
112
|
31
|
81
|
284
|
80
|
61
|
|
2024/12
|
70
|
27
|
39
|
34
|
38
|
29
|
32
|
43
|
64
|
54
|
40
|
72
|
62
|
37
|
37
|
47
|
30
|
40
|
56
|
47
|
38
|
39
|
51
|
70
|
75
|
31
|
35
|
49
|
70
|
65
|
42
|
|
2024/11
|
65
|
52
|
58
|
30
|
38
|
42
|
76
|
134
|
85
|
69
|
39
|
47
|
52
|
59
|
49
|
34
|
30
|
27
|
52
|
63
|
51
|
41
|
52
|
93
|
72
|
21
|
37
|
41
|
44
|
49
|
|
|
2024/10
|
22
|
30
|
32
|
43
|
62
|
33
|
30
|
36
|
54
|
37
|
50
|
43
|
54
|
57
|
29
|
40
|
67
|
58
|
29
|
37
|
36
|
29
|
42
|
50
|
80
|
67
|
33
|
49
|
62
|
32
|
56
|
|
2024/09
|
29
|
26
|
29
|
34
|
25
|
34
|
25
|
26
|
42
|
26
|
40
|
37
|
43
|
16
|
30
|
35
|
30
|
34
|
47
|
15
|
22
|
30
|
31
|
41
|
37
|
35
|
44
|
52
|
39
|
21
|
|
|
2024/08
|
28
|
24
|
37
|
21
|
25
|
29
|
35
|
47
|
47
|
24
|
48
|
28
|
16
|
26
|
31
|
37
|
43
|
39
|
28
|
13
|
20
|
28
|
27
|
30
|
30
|
32
|
31
|
32
|
35
|
41
|
31
|
|
2024/07
|
46
|
55
|
35
|
35
|
52
|
64
|
30
|
55
|
57
|
63
|
69
|
75
|
59
|
46
|
36
|
30
|
38
|
38
|
45
|
44
|
55
|
36
|
33
|
32
|
21
|
18
|
25
|
30
|
47
|
43
|
30
|
|
2024/06
|
33
|
39
|
41
|
48
|
44
|
46
|
49
|
30
|
54
|
44
|
56
|
59
|
43
|
28
|
19
|
35
|
49
|
58
|
49
|
27
|
32
|
103
|
82
|
19
|
24
|
38
|
62
|
47
|
33
|
34
|
|
|
2024/05
|
44
|
55
|
58
|
55
|
62
|
72
|
59
|
63
|
81
|
83
|
97
|
45
|
48
|
57
|
39
|
52
|
66
|
69
|
35
|
28
|
45
|
67
|
50
|
32
|
43
|
48
|
28
|
44
|
55
|
46
|
21
|
|
2024/04
|
50
|
60
|
37
|
37
|
69
|
72
|
66
|
61
|
52
|
64
|
93
|
119
|
69
|
39
|
142
|
53
|
60
|
64
|
37
|
50
|
63
|
64
|
34
|
28
|
80
|
65
|
40
|
18
|
26
|
42
|
|
|
2024/03
|
31
|
51
|
40
|
61
|
43
|
39
|
55
|
31
|
60
|
116
|
93
|
48
|
59
|
64
|
54
|
183
|
72
|
55
|
24
|
26
|
68
|
73
|
68
|
26
|
37
|
74
|
102
|
238
|
84
|
60
|
58
|
|
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