Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
56
O3
0.4
CO
5
SO2
24
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
43
Excellent
Sat
24 May
60
Good
Sun
25 May
87
Good
Mon
26 May
96
Good
Tue
27 May
93
Good
Wed
28 May
84
Good
Thu
29 May
45
Excellent
Air quality in the last 12 months (Songjiang)
|
2025/04
|
47
|
67
|
48
|
40
|
71
|
69
|
57
|
66
|
78
|
89
|
69
|
106
|
96
|
81
|
50
|
59
|
62
|
61
|
63
|
61
|
46
|
61
|
62
|
90
|
59
|
37
|
42
|
53
|
44
|
50
|
|
|
2025/03
|
42
|
57
|
25
|
23
|
24
|
32
|
56
|
68
|
38
|
43
|
58
|
34
|
33
|
41
|
24
|
46
|
49
|
46
|
44
|
54
|
61
|
67
|
68
|
61
|
76
|
84
|
66
|
55
|
60
|
37
|
40
|
|
2025/02
|
31
|
59
|
71
|
74
|
46
|
41
|
55
|
34
|
44
|
51
|
31
|
79
|
41
|
34
|
70
|
99
|
65
|
39
|
48
|
30
|
34
|
61
|
73
|
81
|
98
|
117
|
133
|
50
|
|||
|
2025/01
|
82
|
46
|
63
|
41
|
66
|
100
|
73
|
76
|
34
|
43
|
63
|
73
|
102
|
102
|
42
|
58
|
74
|
78
|
100
|
155
|
144
|
40
|
40
|
39
|
31
|
47
|
51
|
43
|
90
|
57
|
35
|
|
2024/12
|
63
|
79
|
88
|
35
|
53
|
137
|
148
|
30
|
44
|
41
|
52
|
57
|
65
|
87
|
64
|
67
|
76
|
78
|
39
|
53
|
90
|
53
|
40
|
46
|
68
|
143
|
52
|
62
|
73
|
71
|
87
|
|
2024/11
|
9
|
55
|
83
|
79
|
27
|
28
|
28
|
30
|
33
|
40
|
53
|
45
|
52
|
40
|
48
|
52
|
24
|
26
|
29
|
29
|
61
|
85
|
20
|
23
|
31
|
35
|
55
|
67
|
52
|
65
|
|
|
2024/10
|
21
|
31
|
25
|
23
|
20
|
17
|
14
|
43
|
37
|
78
|
72
|
75
|
23
|
41
|
57
|
43
|
33
|
40
|
25
|
39
|
32
|
52
|
45
|
26
|
39
|
16
|
16
|
68
|
23
|
35
|
26
|
|
2024/09
|
37
|
35
|
29
|
24
|
25
|
45
|
44
|
30
|
21
|
32
|
14
|
23
|
16
|
21
|
25
|
14
|
13
|
22
|
18
|
13
|
22
|
30
|
26
|
33
|
50
|
25
|
26
|
36
|
35
|
33
|
|
|
2024/08
|
36
|
44
|
47
|
33
|
36
|
32
|
34
|
39
|
32
|
36
|
45
|
42
|
33
|
21
|
25
|
36
|
27
|
16
|
18
|
22
|
18
|
37
|
30
|
33
|
26
|
24
|
39
|
39
|
18
|
26
|
29
|
|
2024/07
|
40
|
25
|
34
|
39
|
48
|
44
|
46
|
43
|
40
|
41
|
29
|
39
|
52
|
75
|
43
|
24
|
32
|
40
|
43
|
33
|
33
|
27
|
19
|
22
|
25
|
28
|
24
|
20
|
19
|
18
|
29
|
|
2024/06
|
46
|
23
|
40
|
54
|
41
|
22
|
22
|
37
|
36
|
31
|
18
|
52
|
69
|
46
|
38
|
34
|
20
|
19
|
23
|
20
|
41
|
40
|
25
|
40
|
31
|
30
|
18
|
21
|
34
|
23
|
|
|
2024/05
|
41
|
38
|
36
|
36
|
31
|
48
|
76
|
50
|
22
|
31
|
57
|
64
|
65
|
42
|
55
|
38
|
36
|
35
|
32
|
30
|
29
|
40
|
26
|
29
|
22
|
35
|
28
|
22
|
35
|
37
|
67
|
|
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