Air Quality
Excellent
No health implications.
13
PM2.5
24
PM10
38
O3
0.5
CO
8
SO2
36
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Dec
89
Good
Fri
20 Dec
114
Light
Sat
21 Dec
63
Good
Sun
22 Dec
62
Good
Mon
23 Dec
91
Good
Tue
24 Dec
23
Excellent
Wed
25 Dec
24
Excellent
Changyi Air quality rank
Air quality in the last 12 months (Changyi)
|
2024/11
|
76
|
79
|
75
|
44
|
42
|
56
|
53
|
43
|
50
|
58
|
109
|
129
|
110
|
44
|
69
|
79
|
34
|
28
|
44
|
74
|
85
|
42
|
38
|
62
|
41
|
30
|
33
|
46
|
48
|
59
|
|
|
2024/10
|
24
|
23
|
45
|
50
|
50
|
40
|
37
|
47
|
56
|
100
|
61
|
76
|
70
|
38
|
64
|
49
|
40
|
15
|
38
|
31
|
43
|
45
|
39
|
67
|
87
|
66
|
70
|
54
|
75
|
92
|
108
|
|
2024/09
|
47
|
23
|
28
|
40
|
34
|
20
|
27
|
45
|
30
|
38
|
32
|
25
|
32
|
34
|
20
|
28
|
35
|
28
|
21
|
27
|
25
|
27
|
31
|
41
|
55
|
53
|
38
|
50
|
41
|
27
|
|
|
2024/08
|
26
|
27
|
31
|
34
|
12
|
17
|
34
|
21
|
24
|
34
|
69
|
52
|
44
|
35
|
33
|
31
|
40
|
29
|
18
|
11
|
24
|
42
|
58
|
44
|
49
|
25
|
16
|
27
|
37
|
51
|
65
|
|
2024/07
|
48
|
30
|
44
|
31
|
31
|
15
|
31
|
28
|
54
|
58
|
62
|
91
|
69
|
42
|
29
|
22
|
24
|
42
|
39
|
16
|
35
|
25
|
18
|
35
|
23
|
21
|
16
|
19
|
28
|
34
|
36
|
|
2024/06
|
29
|
55
|
56
|
54
|
42
|
43
|
36
|
53
|
61
|
67
|
63
|
51
|
50
|
37
|
29
|
29
|
34
|
46
|
27
|
19
|
27
|
40
|
76
|
66
|
38
|
46
|
31
|
43
|
26
|
42
|
|
|
2024/05
|
51
|
54
|
52
|
38
|
32
|
50
|
66
|
69
|
60
|
60
|
216
|
73
|
70
|
92
|
41
|
47
|
69
|
70
|
50
|
25
|
32
|
43
|
47
|
49
|
34
|
40
|
37
|
33
|
43
|
41
|
54
|
|
2024/04
|
70
|
51
|
41
|
46
|
49
|
68
|
68
|
77
|
73
|
78
|
65
|
53
|
31
|
28
|
89
|
115
|
91
|
93
|
93
|
60
|
49
|
60
|
32
|
42
|
71
|
61
|
34
|
36
|
52
|
43
|
|
|
2024/03
|
46
|
79
|
99
|
94
|
77
|
40
|
69
|
68
|
50
|
89
|
107
|
82
|
82
|
102
|
75
|
62
|
114
|
72
|
108
|
32
|
68
|
86
|
70
|
58
|
36
|
66
|
69
|
227
|
155
|
110
|
64
|
|
2024/02
|
28
|
37
|
28
|
33
|
46
|
71
|
138
|
131
|
177
|
292
|
138
|
116
|
86
|
94
|
37
|
51
|
48
|
51
|
43
|
39
|
28
|
29
|
29
|
64
|
125
|
64
|
60
|
108
|
72
|
||
|
2024/01
|
61
|
172
|
146
|
112
|
108
|
89
|
42
|
57
|
75
|
53
|
125
|
225
|
152
|
93
|
53
|
93
|
77
|
58
|
46
|
54
|
35
|
30
|
39
|
49
|
59
|
68
|
67
|
86
|
141
|
108
|
99
|
|
2023/12
|
53
|
69
|
91
|
124
|
169
|
123
|
141
|
104
|
98
|
39
|
27
|
29
|
58
|
54
|
26
|
33
|
41
|
69
|
84
|
32
|
34
|
50
|
90
|
117
|
85
|
122
|
132
|
174
|
224
|
220
|
136
|
|
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