Air Quality
Excellent
No health implications.
22
PM2.5
29
PM10
83
O3
0.4
CO
4
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
55
Good
Sun
5 May
65
Good
Mon
6 May
105
Lightly
Tue
7 May
102
Lightly
Wed
8 May
79
Good
Thu
9 May
75
Good
Fri
10 May
83
Good
Air quality in the last 12 months (Putuo)
|
2024/02
|
27
|
29
|
22
|
37
|
50
|
73
|
49
|
71
|
142
|
201
|
101
|
81
|
55
|
57
|
50
|
28
|
28
|
32
|
46
|
24
|
18
|
27
|
50
|
50
|
85
|
67
|
57
|
40
|
27
|
||
|
2024/01
|
85
|
60
|
98
|
121
|
99
|
151
|
73
|
27
|
91
|
121
|
119
|
123
|
150
|
104
|
31
|
29
|
42
|
70
|
50
|
47
|
65
|
39
|
37
|
53
|
66
|
94
|
108
|
121
|
107
|
40
|
37
|
|
2023/12
|
50
|
56
|
75
|
88
|
99
|
98
|
109
|
71
|
70
|
60
|
27
|
51
|
56
|
53
|
47
|
47
|
32
|
25
|
28
|
60
|
41
|
46
|
60
|
82
|
101
|
108
|
74
|
87
|
79
|
106
|
194
|
|
2023/11
|
42
|
35
|
48
|
31
|
25
|
37
|
54
|
51
|
61
|
29
|
31
|
41
|
33
|
54
|
98
|
94
|
94
|
52
|
64
|
85
|
66
|
58
|
116
|
35
|
31
|
44
|
84
|
88
|
72
|
39
|
|
|
2023/10
|
28
|
27
|
27
|
29
|
39
|
29
|
28
|
25
|
40
|
52
|
35
|
35
|
29
|
70
|
82
|
85
|
69
|
56
|
73
|
31
|
34
|
40
|
32
|
41
|
68
|
63
|
58
|
34
|
46
|
40
|
43
|
|
2023/09
|
27
|
38
|
30
|
22
|
27
|
25
|
40
|
32
|
34
|
39
|
40
|
29
|
27
|
23
|
26
|
32
|
61
|
59
|
32
|
27
|
26
|
22
|
22
|
25
|
48
|
58
|
58
|
53
|
55
|
49
|
|
|
2023/08
|
20
|
25
|
31
|
27
|
25
|
34
|
28
|
32
|
36
|
57
|
81
|
69
|
38
|
24
|
28
|
42
|
37
|
36
|
33
|
28
|
38
|
47
|
44
|
49
|
38
|
34
|
21
|
19
|
24
|
25
|
39
|
|
2023/07
|
42
|
60
|
44
|
40
|
40
|
53
|
36
|
32
|
52
|
31
|
58
|
63
|
52
|
61
|
52
|
25
|
17
|
22
|
22
|
25
|
29
|
27
|
27
|
34
|
23
|
22
|
18
|
21
|
19
|
18
|
24
|
|
2023/06
|
36
|
64
|
54
|
37
|
42
|
48
|
55
|
66
|
80
|
58
|
41
|
26
|
19
|
50
|
71
|
65
|
35
|
24
|
25
|
43
|
89
|
82
|
68
|
31
|
26
|
27
|
31
|
44
|
42
|
31
|
|
|
2023/05
|
76
|
54
|
41
|
31
|
32
|
45
|
27
|
37
|
46
|
37
|
49
|
101
|
112
|
94
|
80
|
51
|
31
|
42
|
30
|
38
|
48
|
75
|
76
|
58
|
61
|
49
|
34
|
37
|
50
|
44
|
34
|
|
2023/04
|
54
|
53
|
48
|
29
|
44
|
65
|
81
|
57
|
49
|
51
|
111
|
197
|
127
|
71
|
59
|
69
|
66
|
69
|
34
|
36
|
52
|
83
|
76
|
39
|
45
|
69
|
69
|
59
|
85
|
79
|
|
|
2023/03
|
89
|
71
|
35
|
52
|
53
|
65
|
68
|
65
|
99
|
107
|
57
|
61
|
53
|
52
|
56
|
64
|
27
|
40
|
43
|
50
|
29
|
55
|
109
|
79
|
46
|
62
|
85
|
69
|
56
|
68
|
48
|
|
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