Air Quality
Excellent
No health implications.
9
PM2.5
25
PM10
89
O3
0.4
CO
5
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 Aug
43
Excellent
Thu
7 Aug
67
Good
Fri
8 Aug
59
Good
Sat
9 Aug
63
Good
Sun
10 Aug
61
Good
Mon
11 Aug
72
Good
Tue
12 Aug
17
Excellent
Air quality in the last 12 months (Chaoyang County)
|
2025/06
|
32
|
55
|
39
|
25
|
41
|
39
|
28
|
44
|
36
|
28
|
39
|
49
|
33
|
43
|
23
|
17
|
30
|
42
|
41
|
27
|
35
|
35
|
44
|
53
|
49
|
45
|
41
|
21
|
37
|
32
|
|
|
2025/05
|
58
|
38
|
37
|
30
|
36
|
35
|
53
|
71
|
33
|
44
|
52
|
79
|
68
|
45
|
49
|
54
|
35
|
37
|
50
|
64
|
56
|
82
|
41
|
53
|
46
|
52
|
68
|
89
|
47
|
79
|
52
|
|
2025/04
|
56
|
23
|
45
|
57
|
44
|
43
|
66
|
30
|
33
|
52
|
61
|
74
|
26
|
18
|
46
|
62
|
73
|
29
|
26
|
39
|
49
|
27
|
60
|
51
|
40
|
58
|
36
|
35
|
67
|
49
|
|
|
2025/03
|
157
|
47
|
41
|
52
|
69
|
34
|
64
|
67
|
130
|
119
|
107
|
72
|
44
|
46
|
43
|
41
|
51
|
25
|
47
|
57
|
48
|
60
|
72
|
61
|
71
|
125
|
65
|
43
|
29
|
34
|
49
|
|
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
|
|
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