Air Quality
Excellent
No health implications.
18
PM2.5
21
PM10
46
O3
0.5
CO
2
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 May
42
Excellent
Mon
25 May
40
Excellent
Tue
26 May
51
Good
Wed
27 May
42
Excellent
Thu
28 May
86
Good
Fri
29 May
66
Good
Sat
30 May
27
Excellent
Air quality in the last 12 months (Putuo)
|
2026/04
|
45
|
55
|
50
|
49
|
52
|
35
|
36
|
38
|
43
|
59
|
60
|
38
|
33
|
50
|
43
|
31
|
42
|
30
|
37
|
30
|
63
|
30
|
28
|
34
|
34
|
33
|
36
|
42
|
31
|
40
|
|
|
2026/03
|
31
|
31
|
25
|
27
|
33
|
40
|
33
|
28
|
33
|
29
|
28
|
43
|
51
|
38
|
28
|
33
|
48
|
44
|
38
|
28
|
31
|
31
|
30
|
34
|
50
|
29
|
30
|
42
|
67
|
39
|
38
|
|
2026/02
|
58
|
83
|
49
|
20
|
40
|
59
|
29
|
51
|
22
|
35
|
93
|
94
|
40
|
41
|
43
|
34
|
32
|
61
|
81
|
58
|
34
|
62
|
64
|
38
|
29
|
24
|
18
|
36
|
|||
|
2026/01
|
16
|
25
|
40
|
35
|
66
|
95
|
54
|
66
|
64
|
57
|
61
|
46
|
58
|
47
|
44
|
87
|
50
|
47
|
37
|
17
|
22
|
25
|
41
|
82
|
41
|
31
|
31
|
27
|
26
|
32
|
11
|
|
2025/12
|
61
|
49
|
39
|
22
|
24
|
35
|
34
|
45
|
32
|
21
|
43
|
28
|
25
|
47
|
52
|
33
|
71
|
31
|
25
|
50
|
32
|
20
|
29
|
34
|
31
|
23
|
19
|
34
|
32
|
58
|
25
|
|
2025/11
|
61
|
54
|
16
|
15
|
17
|
21
|
23
|
29
|
14
|
36
|
17
|
16
|
17
|
40
|
31
|
25
|
24
|
24
|
41
|
47
|
65
|
84
|
43
|
49
|
80
|
52
|
101
|
139
|
79
|
52
|
|
|
2025/10
|
15
|
15
|
10
|
13
|
11
|
15
|
22
|
13
|
14
|
21
|
23
|
26
|
20
|
39
|
20
|
12
|
13
|
19
|
20
|
28
|
23
|
24
|
22
|
25
|
38
|
41
|
28
|
15
|
13
|
16
|
14
|
|
2025/09
|
13
|
11
|
9
|
10
|
10
|
11
|
11
|
10
|
21
|
14
|
23
|
21
|
21
|
24
|
13
|
10
|
11
|
18
|
16
|
12
|
16
|
17
|
17
|
16
|
13
|
13
|
14
|
14
|
23
|
13
|
|
|
2025/08
|
30
|
28
|
32
|
33
|
21
|
28
|
40
|
42
|
39
|
36
|
30
|
19
|
16
|
15
|
11
|
21
|
23
|
10
|
9
|
15
|
26
|
21
|
18
|
12
|
9
|
10
|
9
|
10
|
9
|
8
|
10
|
|
2025/07
|
14
|
13
|
17
|
17
|
13
|
8
|
9
|
17
|
18
|
22
|
14
|
11
|
12
|
34
|
28
|
33
|
27
|
20
|
19
|
24
|
21
|
18
|
19
|
20
|
22
|
15
|
13
|
19
|
21
|
7
|
27
|
|
2025/06
|
20
|
18
|
13
|
27
|
20
|
24
|
22
|
22
|
30
|
18
|
12
|
8
|
13
|
22
|
17
|
12
|
29
|
22
|
18
|
13
|
23
|
16
|
22
|
17
|
14
|
20
|
21
|
16
|
9
|
10
|
|
|
2025/05
|
41
|
45
|
46
|
21
|
27
|
55
|
47
|
50
|
35
|
41
|
34
|
32
|
26
|
15
|
15
|
17
|
34
|
41
|
22
|
20
|
17
|
17
|
15
|
32
|
33
|
27
|
25
|
25
|
21
|
37
|
37
|
|
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