Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
17
PM2.5
55
*
PM10
103
O3
0.5
CO
6
SO2
21
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
28 Apr
83
Good
Tue
29 Apr
104
Light
Wed
30 Apr
113
Light
Thu
1 May
87
Good
Fri
2 May
87
Good
Sat
3 May
69
Good
Sun
4 May
17
Excellent
Air quality in the last 12 months (Changyi)
|
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
|
|
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
|
|
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