Air Quality
Excellent
No health implications.
26
PM2.5
50
PM10
56
O3
0.4
CO
4
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Jun
126
Light
Wed
4 Jun
125
Light
Thu
5 Jun
146
Light
Fri
6 Jun
138
Light
Sat
7 Jun
124
Light
Sun
8 Jun
38
Excellent
Mon
9 Jun
36
Excellent
Air quality in the last 12 months (Changyi)
|
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
|
|
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
|
|
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