Air Quality
Excellent
No health implications.
3
PM2.5
26
PM10
44
O3
0.5
CO
5
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jul
50
Excellent
Thu
31 Jul
47
Excellent
Fri
1 Aug
49
Excellent
Sat
2 Aug
47
Excellent
Sun
3 Aug
53
Good
Mon
4 Aug
42
Excellent
Tue
5 Aug
36
Excellent
Air quality in the last 12 months (Chaoyang)
|
2025/06
|
24
|
47
|
20
|
18
|
30
|
32
|
22
|
37
|
26
|
13
|
23
|
28
|
34
|
31
|
38
|
21
|
25
|
33
|
28
|
26
|
18
|
24
|
36
|
43
|
56
|
31
|
50
|
33
|
38
|
22
|
|
|
2025/05
|
23
|
28
|
21
|
22
|
35
|
27
|
40
|
42
|
38
|
31
|
47
|
58
|
52
|
63
|
56
|
23
|
22
|
33
|
32
|
36
|
45
|
39
|
36
|
27
|
33
|
37
|
49
|
53
|
46
|
53
|
55
|
|
2025/04
|
86
|
53
|
94
|
76
|
36
|
70
|
53
|
68
|
87
|
81
|
82
|
36
|
22
|
26
|
24
|
27
|
60
|
34
|
25
|
58
|
53
|
17
|
38
|
76
|
26
|
43
|
41
|
51
|
68
|
39
|
|
|
2025/03
|
61
|
26
|
45
|
40
|
69
|
67
|
59
|
78
|
128
|
118
|
84
|
125
|
39
|
42
|
45
|
51
|
76
|
61
|
84
|
94
|
69
|
130
|
149
|
80
|
157
|
99
|
42
|
27
|
23
|
31
|
73
|
|
2025/02
|
117
|
131
|
70
|
69
|
64
|
64
|
44
|
35
|
53
|
67
|
91
|
63
|
64
|
62
|
74
|
40
|
34
|
31
|
35
|
38
|
38
|
44
|
42
|
51
|
121
|
60
|
91
|
137
|
|||
|
2025/01
|
37
|
32
|
32
|
58
|
78
|
100
|
70
|
44
|
59
|
80
|
86
|
103
|
92
|
53
|
46
|
46
|
54
|
70
|
72
|
84
|
105
|
96
|
103
|
88
|
105
|
90
|
112
|
52
|
67
|
54
|
75
|
|
2024/12
|
52
|
22
|
30
|
27
|
32
|
39
|
42
|
43
|
61
|
64
|
35
|
48
|
58
|
43
|
30
|
31
|
44
|
50
|
50
|
79
|
75
|
45
|
41
|
37
|
60
|
33
|
34
|
37
|
49
|
60
|
44
|
|
2024/11
|
58
|
53
|
113
|
28
|
25
|
35
|
49
|
85
|
70
|
62
|
113
|
55
|
97
|
61
|
46
|
65
|
57
|
145
|
80
|
63
|
121
|
70
|
127
|
72
|
65
|
65
|
27
|
50
|
53
|
64
|
|
|
2024/10
|
17
|
23
|
27
|
41
|
48
|
34
|
35
|
49
|
44
|
24
|
35
|
50
|
56
|
46
|
14
|
29
|
63
|
40
|
22
|
40
|
37
|
32
|
41
|
57
|
85
|
67
|
40
|
50
|
62
|
89
|
81
|
|
2024/09
|
15
|
18
|
25
|
27
|
16
|
22
|
28
|
30
|
30
|
25
|
29
|
30
|
31
|
14
|
31
|
25
|
36
|
35
|
38
|
17
|
17
|
28
|
32
|
30
|
25
|
44
|
46
|
37
|
38
|
20
|
|
|
2024/08
|
12
|
18
|
26
|
27
|
16
|
25
|
36
|
33
|
27
|
30
|
27
|
22
|
17
|
23
|
26
|
40
|
38
|
41
|
21
|
25
|
17
|
11
|
21
|
33
|
26
|
19
|
16
|
23
|
31
|
34
|
19
|
|
2024/07
|
82
|
55
|
17
|
32
|
25
|
29
|
48
|
65
|
58
|
69
|
75
|
76
|
87
|
75
|
62
|
40
|
14
|
31
|
44
|
30
|
30
|
22
|
19
|
15
|
22
|
7
|
11
|
8
|
15
|
24
|
17
|
|
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