Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
16
PM2.5
52
*
PM10
57
O3
0.4
CO
8
SO2
40
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
17 Jun
144
Light
Wed
18 Jun
115
Light
Thu
19 Jun
65
Good
Fri
20 Jun
70
Good
Sat
21 Jun
84
Good
Sun
22 Jun
24
Excellent
Mon
23 Jun
18
Excellent
Air quality in the last 12 months (Chengyang)
|
2025/05
|
51
|
43
|
30
|
37
|
21
|
20
|
34
|
38
|
22
|
35
|
48
|
60
|
56
|
58
|
45
|
35
|
51
|
36
|
64
|
67
|
50
|
55
|
50
|
49
|
37
|
50
|
49
|
25
|
38
|
36
|
41
|
|
2025/04
|
68
|
39
|
42
|
41
|
48
|
55
|
85
|
73
|
56
|
62
|
50
|
109
|
57
|
55
|
55
|
72
|
117
|
65
|
50
|
56
|
32
|
41
|
55
|
68
|
56
|
65
|
52
|
54
|
62
|
72
|
|
|
2025/03
|
25
|
33
|
40
|
29
|
27
|
46
|
37
|
83
|
89
|
62
|
32
|
68
|
52
|
57
|
50
|
40
|
50
|
33
|
48
|
62
|
60
|
70
|
88
|
119
|
112
|
110
|
108
|
65
|
42
|
48
|
70
|
|
2025/02
|
48
|
64
|
55
|
31
|
36
|
52
|
51
|
31
|
44
|
52
|
34
|
70
|
77
|
72
|
99
|
87
|
45
|
30
|
39
|
47
|
49
|
30
|
49
|
51
|
74
|
95
|
90
|
89
|
|||
|
2025/01
|
101
|
78
|
70
|
64
|
154
|
97
|
49
|
42
|
34
|
44
|
70
|
85
|
90
|
96
|
38
|
68
|
70
|
89
|
127
|
72
|
97
|
89
|
38
|
33
|
80
|
71
|
56
|
41
|
75
|
53
|
48
|
|
2024/12
|
71
|
70
|
41
|
72
|
116
|
87
|
46
|
49
|
73
|
117
|
48
|
60
|
70
|
54
|
64
|
64
|
86
|
34
|
54
|
78
|
54
|
51
|
76
|
67
|
107
|
58
|
55
|
66
|
72
|
81
|
67
|
|
2024/11
|
78
|
84
|
55
|
47
|
34
|
62
|
48
|
36
|
52
|
52
|
83
|
100
|
60
|
31
|
46
|
63
|
32
|
23
|
37
|
61
|
81
|
37
|
35
|
45
|
35
|
32
|
34
|
49
|
50
|
62
|
|
|
2024/10
|
18
|
23
|
39
|
38
|
15
|
32
|
39
|
47
|
56
|
80
|
63
|
61
|
41
|
20
|
52
|
40
|
33
|
13
|
36
|
37
|
31
|
42
|
43
|
57
|
56
|
60
|
65
|
38
|
75
|
83
|
79
|
|
2024/09
|
44
|
20
|
31
|
33
|
26
|
24
|
42
|
33
|
17
|
22
|
25
|
14
|
20
|
25
|
23
|
28
|
21
|
12
|
16
|
17
|
32
|
23
|
36
|
29
|
41
|
52
|
29
|
33
|
25
|
24
|
|
|
2024/08
|
30
|
22
|
21
|
32
|
19
|
15
|
22
|
17
|
17
|
30
|
86
|
79
|
51
|
28
|
38
|
41
|
37
|
21
|
11
|
10
|
12
|
35
|
51
|
42
|
43
|
19
|
10
|
21
|
28
|
41
|
55
|
|
2024/07
|
26
|
11
|
30
|
25
|
22
|
17
|
20
|
20
|
19
|
50
|
59
|
66
|
43
|
28
|
23
|
18
|
17
|
36
|
34
|
16
|
27
|
19
|
17
|
25
|
14
|
18
|
24
|
29
|
38
|
33
|
35
|
|
2024/06
|
30
|
49
|
42
|
27
|
23
|
25
|
15
|
42
|
63
|
68
|
53
|
18
|
22
|
19
|
22
|
32
|
21
|
31
|
16
|
10
|
13
|
26
|
50
|
59
|
49
|
19
|
18
|
19
|
16
|
32
|
|
|
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