Air Quality
Excellent
No health implications.
29
PM2.5
37
PM10
77
O3
0.6
CO
5
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Apr
86
Good
Sun
26 Apr
98
Good
Mon
27 Apr
55
Good
Tue
28 Apr
46
Excellent
Wed
29 Apr
64
Good
Thu
30 Apr
77
Good
Fri
1 May
50
Excellent
Air quality in the last 12 months (Caidian)
|
2026/03
|
26
|
31
|
51
|
68
|
82
|
75
|
80
|
69
|
78
|
78
|
65
|
72
|
61
|
70
|
86
|
25
|
25
|
39
|
75
|
79
|
76
|
54
|
71
|
79
|
75
|
80
|
70
|
65
|
62
|
37
|
57
|
|
2026/02
|
53
|
78
|
87
|
84
|
86
|
116
|
54
|
72
|
54
|
64
|
81
|
111
|
73
|
68
|
87
|
29
|
72
|
79
|
91
|
60
|
51
|
87
|
90
|
37
|
34
|
21
|
47
|
44
|
|||
|
2026/01
|
28
|
53
|
73
|
71
|
85
|
54
|
65
|
61
|
67
|
77
|
68
|
67
|
71
|
82
|
104
|
117
|
141
|
131
|
17
|
49
|
52
|
80
|
84
|
92
|
76
|
143
|
83
|
74
|
52
|
30
|
41
|
|
2025/12
|
97
|
94
|
59
|
73
|
77
|
84
|
117
|
110
|
133
|
132
|
151
|
109
|
35
|
50
|
63
|
70
|
133
|
168
|
126
|
137
|
49
|
46
|
46
|
84
|
59
|
65
|
70
|
85
|
89
|
127
|
74
|
|
2025/11
|
76
|
84
|
72
|
73
|
71
|
57
|
32
|
28
|
49
|
53
|
65
|
36
|
46
|
65
|
84
|
89
|
51
|
25
|
33
|
42
|
61
|
82
|
101
|
82
|
92
|
71
|
103
|
88
|
73
|
76
|
|
|
2025/10
|
44
|
44
|
17
|
34
|
61
|
59
|
36
|
55
|
60
|
45
|
39
|
50
|
17
|
32
|
51
|
30
|
33
|
9
|
11
|
24
|
20
|
24
|
27
|
31
|
53
|
73
|
73
|
79
|
84
|
59
|
45
|
|
2025/09
|
20
|
32
|
37
|
31
|
41
|
30
|
44
|
47
|
25
|
30
|
25
|
24
|
24
|
24
|
30
|
41
|
29
|
16
|
18
|
13
|
25
|
40
|
19
|
11
|
14
|
29
|
37
|
46
|
28
|
30
|
|
|
2025/08
|
37
|
31
|
44
|
48
|
37
|
25
|
17
|
19
|
26
|
29
|
14
|
22
|
23
|
24
|
22
|
23
|
29
|
30
|
23
|
15
|
18
|
19
|
22
|
24
|
26
|
33
|
32
|
28
|
37
|
25
|
19
|
|
2025/07
|
18
|
16
|
19
|
27
|
36
|
42
|
42
|
48
|
22
|
23
|
40
|
24
|
28
|
35
|
33
|
28
|
34
|
30
|
33
|
29
|
22
|
13
|
18
|
24
|
28
|
26
|
21
|
21
|
21
|
22
|
24
|
|
2025/06
|
9
|
22
|
50
|
56
|
44
|
42
|
19
|
14
|
18
|
37
|
31
|
33
|
32
|
24
|
29
|
38
|
33
|
17
|
10
|
14
|
8
|
14
|
26
|
27
|
37
|
23
|
23
|
17
|
11
|
22
|
|
|
2025/05
|
50
|
57
|
48
|
51
|
41
|
123
|
148
|
44
|
49
|
43
|
47
|
44
|
52
|
63
|
49
|
49
|
50
|
126
|
79
|
38
|
27
|
19
|
53
|
57
|
53
|
47
|
61
|
33
|
31
|
30
|
13
|
|
2025/04
|
67
|
63
|
58
|
72
|
79
|
73
|
73
|
70
|
73
|
45
|
59
|
201
|
113
|
99
|
58
|
59
|
69
|
74
|
70
|
61
|
35
|
54
|
59
|
61
|
66
|
46
|
49
|
57
|
54
|
42
|
|
|
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