Air Quality
Excellent
No health implications.
8
PM2.5
13
PM10
34
O3
0.5
CO
5
SO2
33
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Dec
39
Excellent
Tue
23 Dec
46
Excellent
Wed
24 Dec
64
Good
Thu
25 Dec
41
Excellent
Fri
26 Dec
42
Excellent
Sat
27 Dec
15
Excellent
Sun
28 Dec
47
Excellent
Air quality in the last 12 months (Hongkou)
|
2025/11
|
116
|
106
|
15
|
25
|
30
|
40
|
35
|
38
|
25
|
38
|
22
|
35
|
29
|
60
|
47
|
39
|
36
|
38
|
55
|
66
|
80
|
128
|
117
|
102
|
86
|
57
|
152
|
141
|
102
|
86
|
|
|
2025/10
|
41
|
27
|
40
|
24
|
28
|
33
|
36
|
15
|
20
|
34
|
41
|
44
|
63
|
40
|
30
|
26
|
20
|
20
|
26
|
31
|
29
|
28
|
28
|
29
|
32
|
37
|
40
|
19
|
24
|
32
|
29
|
|
2025/09
|
32
|
28
|
25
|
28
|
30
|
29
|
50
|
21
|
25
|
25
|
31
|
40
|
42
|
37
|
37
|
27
|
31
|
27
|
28
|
24
|
23
|
22
|
28
|
24
|
24
|
26
|
31
|
35
|
21
|
30
|
|
|
2025/08
|
38
|
38
|
32
|
31
|
33
|
24
|
26
|
32
|
37
|
38
|
43
|
39
|
25
|
25
|
20
|
32
|
35
|
18
|
23
|
31
|
49
|
44
|
39
|
31
|
30
|
34
|
18
|
18
|
19
|
18
|
25
|
|
2025/07
|
21
|
26
|
31
|
34
|
31
|
23
|
16
|
21
|
23
|
42
|
26
|
16
|
20
|
42
|
41
|
49
|
43
|
25
|
16
|
24
|
23
|
24
|
23
|
27
|
27
|
20
|
19
|
26
|
25
|
13
|
23
|
|
2025/06
|
17
|
16
|
34
|
59
|
42
|
43
|
37
|
19
|
21
|
23
|
26
|
15
|
16
|
33
|
15
|
25
|
57
|
50
|
39
|
25
|
25
|
13
|
11
|
22
|
37
|
45
|
36
|
41
|
27
|
17
|
|
|
2025/05
|
54
|
52
|
50
|
25
|
37
|
74
|
58
|
49
|
35
|
49
|
37
|
46
|
39
|
35
|
44
|
49
|
54
|
60
|
43
|
41
|
32
|
34
|
10
|
44
|
41
|
38
|
31
|
32
|
35
|
54
|
50
|
|
2025/04
|
42
|
64
|
43
|
39
|
64
|
69
|
59
|
64
|
75
|
80
|
66
|
71
|
87
|
70
|
54
|
59
|
63
|
57
|
57
|
44
|
39
|
62
|
63
|
83
|
48
|
34
|
38
|
42
|
38
|
44
|
|
|
2025/03
|
41
|
55
|
25
|
20
|
17
|
36
|
42
|
54
|
35
|
38
|
49
|
33
|
33
|
40
|
23
|
44
|
42
|
41
|
34
|
56
|
61
|
63
|
68
|
59
|
73
|
79
|
62
|
48
|
57
|
29
|
35
|
|
2025/02
|
28
|
56
|
72
|
61
|
56
|
34
|
53
|
35
|
40
|
49
|
28
|
74
|
34
|
33
|
60
|
115
|
56
|
39
|
44
|
26
|
33
|
58
|
53
|
73
|
78
|
130
|
132
|
61
|
|||
|
2025/01
|
56
|
44
|
54
|
39
|
65
|
95
|
65
|
73
|
31
|
39
|
55
|
69
|
90
|
102
|
36
|
56
|
71
|
72
|
93
|
158
|
107
|
29
|
36
|
35
|
31
|
42
|
55
|
41
|
86
|
43
|
36
|
|
2024/12
|
61
|
84
|
75
|
29
|
51
|
136
|
126
|
24
|
29
|
37
|
54
|
46
|
62
|
69
|
62
|
60
|
80
|
62
|
36
|
50
|
87
|
45
|
37
|
47
|
66
|
125
|
42
|
57
|
70
|
67
|
75
|
|
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