Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
37
PM2.5
61
*
PM10
26
O3
0.6
CO
6
SO2
30
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
17 Dec
79
Good
Thu
18 Dec
100
Good
Fri
19 Dec
117
Light
Sat
20 Dec
60
Good
Sun
21 Dec
62
Good
Mon
22 Dec
22
Excellent
Tue
23 Dec
39
Excellent
Air quality in the last 12 months (Changyi)
|
2025/11
|
86
|
39
|
31
|
56
|
63
|
50
|
82
|
86
|
86
|
60
|
75
|
82
|
75
|
73
|
149
|
104
|
37
|
50
|
56
|
61
|
63
|
100
|
121
|
138
|
43
|
80
|
111
|
105
|
133
|
158
|
|
|
2025/10
|
53
|
22
|
14
|
31
|
8
|
11
|
36
|
36
|
25
|
12
|
21
|
21
|
29
|
54
|
25
|
42
|
42
|
22
|
26
|
27
|
32
|
33
|
40
|
45
|
67
|
75
|
44
|
68
|
51
|
39
|
47
|
|
2025/09
|
28
|
38
|
33
|
32
|
31
|
34
|
49
|
63
|
54
|
51
|
37
|
27
|
34
|
48
|
47
|
30
|
17
|
22
|
14
|
35
|
44
|
39
|
42
|
36
|
51
|
59
|
45
|
38
|
72
|
76
|
|
|
2025/08
|
12
|
22
|
16
|
23
|
30
|
22
|
27
|
29
|
8
|
17
|
28
|
31
|
31
|
33
|
24
|
25
|
14
|
34
|
37
|
37
|
36
|
34
|
31
|
27
|
44
|
22
|
27
|
23
|
18
|
16
|
15
|
|
2025/07
|
33
|
30
|
33
|
31
|
35
|
35
|
42
|
20
|
25
|
35
|
41
|
33
|
40
|
25
|
25
|
22
|
26
|
28
|
32
|
24
|
16
|
15
|
15
|
18
|
24
|
23
|
23
|
20
|
20
|
23
|
22
|
|
2025/06
|
47
|
34
|
42
|
33
|
52
|
59
|
59
|
47
|
53
|
22
|
30
|
36
|
24
|
19
|
26
|
35
|
39
|
49
|
21
|
17
|
35
|
50
|
45
|
39
|
53
|
64
|
51
|
49
|
20
|
24
|
|
|
2025/05
|
66
|
53
|
40
|
43
|
31
|
44
|
53
|
48
|
27
|
38
|
51
|
63
|
60
|
63
|
39
|
61
|
63
|
47
|
76
|
76
|
62
|
61
|
40
|
53
|
42
|
56
|
49
|
50
|
49
|
52
|
57
|
|
2025/04
|
70
|
37
|
34
|
54
|
53
|
60
|
95
|
95
|
51
|
54
|
67
|
108
|
60
|
57
|
52
|
71
|
112
|
63
|
36
|
49
|
47
|
52
|
46
|
71
|
62
|
69
|
58
|
59
|
63
|
84
|
|
|
2025/03
|
49
|
46
|
48
|
46
|
37
|
66
|
48
|
108
|
113
|
98
|
68
|
104
|
51
|
58
|
58
|
45
|
49
|
34
|
48
|
57
|
57
|
66
|
89
|
112
|
106
|
108
|
105
|
54
|
41
|
58
|
69
|
|
2025/02
|
49
|
88
|
52
|
32
|
38
|
57
|
54
|
30
|
42
|
72
|
60
|
102
|
75
|
78
|
94
|
73
|
42
|
42
|
50
|
54
|
50
|
41
|
58
|
47
|
72
|
82
|
126
|
140
|
|||
|
2025/01
|
112
|
69
|
67
|
112
|
172
|
77
|
42
|
40
|
36
|
46
|
67
|
96
|
97
|
99
|
38
|
57
|
54
|
108
|
122
|
62
|
125
|
71
|
64
|
58
|
69
|
72
|
43
|
47
|
120
|
84
|
95
|
|
2024/12
|
88
|
60
|
37
|
76
|
104
|
74
|
43
|
52
|
80
|
128
|
35
|
53
|
72
|
54
|
57
|
75
|
80
|
32
|
48
|
82
|
55
|
50
|
78
|
81
|
127
|
51
|
59
|
63
|
66
|
85
|
54
|
|
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