Air Quality
Excellent
No health implications.
19
PM2.5
41
PM10
95
O3
0.5
CO
5
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 May
111
Light
Thu
15 May
100
Good
Fri
16 May
60
Good
Sat
17 May
98
Good
Sun
18 May
85
Good
Mon
19 May
96
Good
Tue
20 May
25
Excellent
Air quality in the last 12 months (Chongming)
|
2025/02
|
24
|
56
|
69
|
58
|
53
|
33
|
52
|
35
|
43
|
51
|
28
|
76
|
36
|
31
|
60
|
112
|
55
|
39
|
41
|
24
|
30
|
57
|
45
|
62
|
78
|
131
|
124
|
59
|
|||
|
2025/01
|
57
|
38
|
48
|
35
|
74
|
92
|
62
|
70
|
29
|
37
|
59
|
76
|
86
|
99
|
38
|
59
|
77
|
71
|
98
|
147
|
94
|
33
|
38
|
35
|
32
|
43
|
58
|
56
|
104
|
44
|
37
|
|
2024/12
|
62
|
87
|
61
|
25
|
61
|
132
|
121
|
24
|
31
|
35
|
59
|
39
|
62
|
59
|
62
|
65
|
82
|
61
|
35
|
54
|
85
|
43
|
35
|
47
|
66
|
112
|
43
|
56
|
68
|
72
|
76
|
|
2024/11
|
9
|
49
|
61
|
52
|
25
|
20
|
24
|
25
|
30
|
31
|
35
|
44
|
42
|
35
|
60
|
33
|
23
|
25
|
24
|
26
|
64
|
73
|
17
|
25
|
27
|
40
|
61
|
66
|
50
|
63
|
|
|
2024/10
|
17
|
23
|
18
|
18
|
17
|
9
|
12
|
36
|
31
|
54
|
69
|
51
|
21
|
26
|
46
|
25
|
29
|
38
|
25
|
31
|
33
|
42
|
38
|
21
|
31
|
13
|
16
|
44
|
19
|
25
|
20
|
|
2024/09
|
30
|
32
|
19
|
21
|
20
|
35
|
43
|
26
|
18
|
26
|
12
|
21
|
16
|
14
|
19
|
20
|
17
|
17
|
22
|
15
|
17
|
26
|
22
|
24
|
20
|
12
|
25
|
26
|
32
|
32
|
|
|
2024/08
|
37
|
41
|
42
|
31
|
32
|
28
|
28
|
31
|
28
|
36
|
38
|
43
|
37
|
18
|
23
|
33
|
19
|
17
|
14
|
25
|
23
|
40
|
32
|
25
|
20
|
19
|
33
|
25
|
16
|
22
|
23
|
|
2024/07
|
27
|
24
|
24
|
31
|
36
|
37
|
38
|
39
|
39
|
28
|
18
|
20
|
32
|
46
|
46
|
26
|
32
|
32
|
37
|
32
|
32
|
28
|
20
|
22
|
27
|
29
|
27
|
22
|
19
|
17
|
27
|
|
2024/06
|
57
|
20
|
40
|
42
|
31
|
14
|
19
|
19
|
32
|
26
|
13
|
22
|
41
|
31
|
21
|
22
|
15
|
21
|
15
|
28
|
38
|
27
|
25
|
33
|
34
|
20
|
13
|
20
|
25
|
18
|
|
|
2024/05
|
33
|
38
|
32
|
33
|
30
|
55
|
48
|
34
|
21
|
33
|
48
|
68
|
65
|
40
|
41
|
32
|
37
|
33
|
28
|
23
|
22
|
34
|
23
|
17
|
20
|
28
|
20
|
21
|
30
|
33
|
50
|
|
2024/04
|
63
|
29
|
36
|
48
|
48
|
46
|
43
|
39
|
59
|
61
|
46
|
27
|
22
|
18
|
42
|
38
|
35
|
74
|
101
|
42
|
24
|
29
|
40
|
43
|
33
|
34
|
22
|
20
|
28
|
36
|
|
|
2024/03
|
40
|
59
|
68
|
36
|
31
|
54
|
44
|
77
|
80
|
42
|
57
|
98
|
54
|
51
|
39
|
39
|
69
|
53
|
85
|
95
|
58
|
67
|
68
|
65
|
54
|
39
|
39
|
59
|
59
|
66
|
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