Air Quality
Excellent
No health implications.
19
PM2.5
29
PM10
35
O3
0.5
CO
6
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
76
Good
Thu
1 May
91
Good
Fri
2 May
102
Light
Sat
3 May
103
Light
Sun
4 May
86
Good
Mon
5 May
24
Excellent
Tue
6 May
32
Excellent
Air quality in the last 12 months (Wutongqiao)
|
2025/02
|
47
|
40
|
50
|
56
|
35
|
33
|
30
|
30
|
44
|
56
|
71
|
53
|
63
|
60
|
64
|
76
|
92
|
94
|
70
|
51
|
40
|
23
|
37
|
37
|
33
|
42
|
82
|
98
|
|||
|
2025/01
|
133
|
151
|
142
|
170
|
134
|
129
|
83
|
53
|
50
|
92
|
39
|
79
|
96
|
90
|
94
|
95
|
113
|
71
|
80
|
98
|
146
|
214
|
207
|
102
|
26
|
46
|
66
|
67
|
154
|
118
|
74
|
|
2024/12
|
93
|
135
|
130
|
112
|
61
|
63
|
51
|
33
|
31
|
51
|
63
|
64
|
57
|
51
|
51
|
72
|
117
|
167
|
146
|
115
|
128
|
83
|
66
|
56
|
61
|
69
|
108
|
79
|
105
|
66
|
80
|
|
2024/11
|
30
|
43
|
55
|
30
|
41
|
60
|
56
|
58
|
52
|
35
|
35
|
42
|
41
|
41
|
62
|
32
|
20
|
16
|
26
|
31
|
56
|
64
|
62
|
47
|
13
|
23
|
40
|
49
|
62
|
70
|
|
|
2024/10
|
20
|
33
|
18
|
25
|
35
|
35
|
42
|
45
|
49
|
31
|
29
|
23
|
29
|
34
|
54
|
79
|
21
|
35
|
22
|
20
|
18
|
22
|
45
|
55
|
36
|
23
|
25
|
43
|
67
|
52
|
52
|
|
2024/09
|
21
|
37
|
32
|
42
|
25
|
28
|
44
|
50
|
39
|
21
|
20
|
40
|
37
|
25
|
45
|
20
|
34
|
41
|
51
|
49
|
26
|
42
|
50
|
55
|
59
|
56
|
67
|
73
|
52
|
7
|
|
|
2024/08
|
37
|
47
|
37
|
15
|
24
|
39
|
43
|
32
|
41
|
25
|
46
|
48
|
51
|
60
|
63
|
40
|
47
|
34
|
47
|
53
|
56
|
71
|
68
|
61
|
64
|
46
|
50
|
57
|
61
|
49
|
38
|
|
2024/07
|
15
|
27
|
32
|
41
|
34
|
35
|
46
|
18
|
9
|
9
|
23
|
22
|
28
|
15
|
25
|
28
|
25
|
15
|
23
|
24
|
21
|
23
|
36
|
18
|
28
|
48
|
42
|
23
|
25
|
28
|
38
|
|
2024/06
|
54
|
33
|
41
|
27
|
28
|
44
|
24
|
27
|
32
|
38
|
29
|
27
|
41
|
46
|
48
|
59
|
26
|
37
|
27
|
29
|
20
|
19
|
29
|
30
|
36
|
23
|
16
|
25
|
21
|
25
|
|
|
2024/05
|
41
|
35
|
31
|
24
|
42
|
69
|
80
|
52
|
34
|
44
|
31
|
35
|
36
|
51
|
54
|
53
|
68
|
29
|
41
|
35
|
30
|
48
|
51
|
50
|
53
|
27
|
41
|
33
|
15
|
23
|
32
|
|
2024/04
|
64
|
55
|
64
|
57
|
60
|
33
|
37
|
44
|
57
|
42
|
37
|
50
|
56
|
59
|
67
|
40
|
32
|
27
|
32
|
49
|
58
|
73
|
30
|
33
|
48
|
90
|
98
|
103
|
40
|
19
|
|
|
2024/03
|
65
|
63
|
88
|
115
|
83
|
69
|
62
|
70
|
105
|
113
|
50
|
81
|
57
|
53
|
73
|
67
|
81
|
46
|
60
|
64
|
65
|
82
|
84
|
61
|
29
|
55
|
53
|
38
|
52
|
62
|
55
|
|
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