Air Quality
Excellent
No health implications.
15
PM2.5
17
PM10
53
O3
0.7
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 May
65
Good
Thu
28 May
80
Good
Fri
29 May
89
Good
Sat
30 May
100
Good
Sun
31 May
109
Light
Mon
1 Jun
44
Excellent
Tue
2 Jun
40
Excellent
Air quality in the last 12 months (Chengyang)
|
2026/04
|
78
|
106
|
65
|
40
|
59
|
45
|
31
|
36
|
32
|
55
|
64
|
66
|
45
|
56
|
61
|
57
|
42
|
42
|
33
|
73
|
71
|
39
|
50
|
48
|
51
|
63
|
70
|
36
|
43
|
48
|
|
|
2026/03
|
74
|
79
|
94
|
97
|
69
|
42
|
39
|
35
|
50
|
50
|
55
|
72
|
85
|
77
|
70
|
84
|
48
|
49
|
41
|
77
|
92
|
79
|
107
|
97
|
80
|
94
|
125
|
133
|
69
|
63
|
52
|
|
2026/02
|
181
|
161
|
95
|
111
|
156
|
39
|
34
|
45
|
59
|
74
|
117
|
134
|
97
|
87
|
59
|
55
|
217
|
83
|
74
|
74
|
61
|
103
|
53
|
30
|
67
|
60
|
85
|
96
|
|||
|
2026/01
|
37
|
44
|
67
|
146
|
94
|
121
|
91
|
51
|
76
|
79
|
40
|
64
|
80
|
71
|
143
|
112
|
35
|
24
|
27
|
33
|
37
|
51
|
78
|
115
|
54
|
66
|
87
|
75
|
65
|
37
|
100
|
|
2025/12
|
58
|
34
|
37
|
56
|
43
|
84
|
107
|
53
|
67
|
44
|
53
|
32
|
46
|
61
|
74
|
97
|
64
|
47
|
82
|
107
|
34
|
36
|
37
|
57
|
38
|
38
|
54
|
82
|
166
|
67
|
33
|
|
2025/11
|
75
|
42
|
24
|
39
|
28
|
45
|
51
|
55
|
75
|
50
|
60
|
66
|
75
|
72
|
111
|
81
|
35
|
48
|
61
|
74
|
79
|
97
|
106
|
122
|
49
|
67
|
110
|
84
|
118
|
133
|
|
|
2025/10
|
54
|
22
|
12
|
19
|
9
|
12
|
29
|
22
|
31
|
18
|
22
|
18
|
29
|
40
|
16
|
39
|
52
|
26
|
27
|
22
|
25
|
30
|
38
|
44
|
73
|
91
|
43
|
52
|
33
|
22
|
33
|
|
2025/09
|
18
|
29
|
20
|
18
|
20
|
18
|
38
|
46
|
52
|
47
|
30
|
17
|
16
|
29
|
18
|
20
|
13
|
17
|
13
|
39
|
38
|
19
|
11
|
34
|
47
|
41
|
42
|
29
|
58
|
59
|
|
|
2025/08
|
12
|
16
|
13
|
21
|
17
|
15
|
23
|
21
|
10
|
17
|
24
|
14
|
15
|
22
|
19
|
28
|
39
|
36
|
31
|
31
|
26
|
33
|
42
|
27
|
35
|
22
|
20
|
26
|
33
|
20
|
15
|
|
2025/07
|
31
|
35
|
41
|
42
|
45
|
45
|
38
|
13
|
24
|
33
|
29
|
35
|
28
|
21
|
30
|
21
|
26
|
27
|
22
|
18
|
17
|
15
|
15
|
19
|
21
|
18
|
20
|
16
|
15
|
16
|
15
|
|
2025/06
|
37
|
23
|
34
|
29
|
40
|
46
|
41
|
28
|
18
|
19
|
17
|
20
|
11
|
10
|
24
|
39
|
42
|
41
|
15
|
16
|
44
|
39
|
44
|
31
|
39
|
53
|
30
|
35
|
14
|
17
|
|
|
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
|
|
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