Air Quality
Excellent
No health implications.
4
PM2.5
18
PM10
32
O3
0.3
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jul
26
Excellent
Wed
30 Jul
28
Excellent
Thu
31 Jul
28
Excellent
Fri
1 Aug
38
Excellent
Sat
2 Aug
61
Good
Sun
3 Aug
86
Good
Mon
4 Aug
27
Excellent
Air quality in the last 12 months (Putuo)
|
2025/06
|
15
|
16
|
38
|
69
|
41
|
43
|
40
|
22
|
23
|
28
|
28
|
15
|
15
|
32
|
15
|
26
|
55
|
51
|
39
|
23
|
26
|
13
|
13
|
27
|
47
|
41
|
36
|
38
|
24
|
17
|
|
|
2025/05
|
54
|
51
|
46
|
24
|
39
|
84
|
60
|
48
|
21
|
48
|
39
|
50
|
42
|
36
|
46
|
53
|
64
|
62
|
44
|
46
|
36
|
39
|
14
|
48
|
44
|
40
|
33
|
32
|
37
|
58
|
53
|
|
2025/04
|
46
|
68
|
46
|
43
|
69
|
68
|
63
|
64
|
75
|
89
|
70
|
83
|
94
|
79
|
70
|
60
|
67
|
61
|
63
|
53
|
43
|
65
|
66
|
90
|
51
|
35
|
40
|
53
|
40
|
47
|
|
|
2025/03
|
41
|
54
|
24
|
22
|
18
|
37
|
50
|
59
|
38
|
42
|
57
|
32
|
35
|
43
|
21
|
47
|
49
|
44
|
39
|
58
|
65
|
65
|
67
|
62
|
79
|
78
|
72
|
51
|
58
|
30
|
38
|
|
2025/02
|
27
|
58
|
69
|
66
|
55
|
37
|
54
|
38
|
44
|
52
|
26
|
75
|
37
|
34
|
61
|
111
|
60
|
44
|
47
|
29
|
35
|
52
|
57
|
71
|
85
|
133
|
137
|
66
|
|||
|
2025/01
|
56
|
43
|
57
|
38
|
63
|
94
|
66
|
69
|
32
|
42
|
59
|
70
|
84
|
93
|
38
|
59
|
72
|
67
|
93
|
153
|
112
|
30
|
38
|
38
|
31
|
46
|
55
|
46
|
90
|
46
|
34
|
|
2024/12
|
56
|
78
|
76
|
33
|
51
|
133
|
122
|
27
|
33
|
45
|
57
|
46
|
62
|
71
|
61
|
66
|
72
|
65
|
37
|
52
|
82
|
49
|
35
|
47
|
65
|
127
|
46
|
57
|
70
|
68
|
77
|
|
2024/11
|
10
|
50
|
78
|
63
|
27
|
24
|
27
|
27
|
31
|
33
|
40
|
44
|
53
|
37
|
61
|
45
|
22
|
27
|
25
|
32
|
62
|
78
|
18
|
24
|
32
|
40
|
61
|
71
|
54
|
64
|
|
|
2024/10
|
20
|
26
|
21
|
19
|
19
|
12
|
15
|
44
|
35
|
71
|
77
|
64
|
20
|
42
|
50
|
26
|
33
|
42
|
29
|
39
|
39
|
48
|
38
|
23
|
34
|
13
|
19
|
59
|
26
|
30
|
23
|
|
2024/09
|
36
|
38
|
26
|
25
|
24
|
40
|
43
|
28
|
22
|
30
|
26
|
25
|
19
|
18
|
24
|
16
|
22
|
24
|
28
|
18
|
23
|
33
|
30
|
31
|
33
|
19
|
27
|
36
|
34
|
36
|
|
|
2024/08
|
34
|
42
|
42
|
34
|
37
|
33
|
29
|
37
|
35
|
39
|
45
|
45
|
36
|
20
|
26
|
34
|
22
|
17
|
18
|
25
|
23
|
38
|
33
|
29
|
28
|
25
|
44
|
33
|
16
|
30
|
27
|
|
2024/07
|
40
|
29
|
22
|
37
|
42
|
42
|
44
|
43
|
42
|
40
|
23
|
26
|
39
|
67
|
44
|
24
|
35
|
38
|
37
|
38
|
33
|
26
|
24
|
25
|
28
|
33
|
27
|
26
|
21
|
22
|
29
|
|
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