Air Quality
Excellent
No health implications.
25
PM2.5
36
PM10
81
O3
0.3
CO
3
SO2
23
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
81
Good
Tue
29 Apr
99
Good
Wed
30 Apr
87
Good
Thu
1 May
72
Good
Fri
2 May
66
Good
Sat
3 May
66
Good
Sun
4 May
40
Excellent
Air quality in the last 12 months (Caofeidian)
|
2025/02
|
50
|
90
|
19
|
21
|
23
|
55
|
22
|
16
|
31
|
73
|
105
|
56
|
72
|
95
|
119
|
57
|
29
|
36
|
45
|
38
|
46
|
44
|
32
|
51
|
62
|
68
|
151
|
186
|
|||
|
2025/01
|
72
|
37
|
38
|
111
|
107
|
38
|
26
|
24
|
23
|
35
|
57
|
60
|
60
|
56
|
32
|
58
|
52
|
106
|
84
|
66
|
66
|
52
|
51
|
77
|
104
|
110
|
26
|
30
|
124
|
38
|
34
|
|
2024/12
|
92
|
33
|
39
|
43
|
49
|
45
|
37
|
26
|
54
|
58
|
39
|
64
|
64
|
36
|
45
|
51
|
41
|
44
|
44
|
63
|
39
|
30
|
53
|
80
|
106
|
29
|
30
|
39
|
69
|
79
|
40
|
|
2024/11
|
116
|
49
|
74
|
31
|
50
|
49
|
65
|
75
|
76
|
68
|
39
|
55
|
54
|
72
|
58
|
59
|
30
|
27
|
52
|
82
|
59
|
34
|
31
|
62
|
48
|
16
|
17
|
20
|
39
|
58
|
|
|
2024/10
|
17
|
20
|
48
|
51
|
68
|
61
|
25
|
46
|
62
|
59
|
51
|
72
|
76
|
89
|
94
|
31
|
58
|
30
|
22
|
24
|
43
|
46
|
56
|
109
|
119
|
75
|
59
|
69
|
85
|
73
|
108
|
|
2024/09
|
32
|
24
|
36
|
41
|
34
|
27
|
37
|
43
|
51
|
19
|
26
|
22
|
38
|
40
|
34
|
48
|
55
|
28
|
33
|
24
|
23
|
33
|
36
|
48
|
64
|
38
|
37
|
38
|
34
|
21
|
|
|
2024/08
|
31
|
48
|
55
|
19
|
28
|
46
|
28
|
40
|
37
|
43
|
65
|
41
|
25
|
23
|
37
|
55
|
57
|
32
|
21
|
12
|
29
|
33
|
23
|
25
|
37
|
22
|
25
|
31
|
37
|
48
|
35
|
|
2024/07
|
42
|
57
|
40
|
53
|
58
|
28
|
39
|
36
|
58
|
63
|
68
|
65
|
67
|
57
|
33
|
34
|
33
|
34
|
42
|
45
|
31
|
32
|
47
|
52
|
20
|
14
|
15
|
21
|
24
|
27
|
26
|
|
2024/06
|
50
|
54
|
65
|
54
|
56
|
63
|
51
|
52
|
71
|
70
|
81
|
53
|
55
|
38
|
27
|
47
|
53
|
56
|
55
|
24
|
39
|
67
|
90
|
48
|
50
|
69
|
58
|
58
|
33
|
43
|
|
|
2024/05
|
52
|
58
|
69
|
58
|
80
|
81
|
82
|
80
|
76
|
78
|
251
|
50
|
62
|
83
|
42
|
56
|
71
|
74
|
45
|
35
|
62
|
78
|
65
|
29
|
45
|
44
|
39
|
48
|
56
|
59
|
41
|
|
2024/04
|
64
|
64
|
52
|
50
|
67
|
90
|
119
|
113
|
57
|
89
|
137
|
88
|
67
|
37
|
121
|
58
|
72
|
94
|
75
|
72
|
69
|
65
|
30
|
38
|
87
|
87
|
65
|
41
|
39
|
48
|
|
|
2024/03
|
30
|
83
|
50
|
48
|
65
|
49
|
76
|
31
|
54
|
101
|
129
|
114
|
102
|
139
|
108
|
127
|
64
|
68
|
118
|
38
|
65
|
62
|
81
|
51
|
51
|
67
|
81
|
219
|
121
|
90
|
70
|
|
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