Air Quality
Excellent
No health implications.
9
PM2.5
16
PM10
45
O3
0.4
CO
7
SO2
30
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Feb
97
Good
Mon
2 Feb
110
Light
Tue
3 Feb
151
Moderate
Wed
4 Feb
197
Moderate
Thu
5 Feb
81
Good
Fri
6 Feb
70
Good
Sat
7 Feb
15
Excellent
Air quality in the last 12 months (Hongqiao)
|
2025/12
|
48
|
22
|
41
|
40
|
66
|
150
|
90
|
23
|
85
|
136
|
69
|
36
|
47
|
89
|
137
|
119
|
129
|
181
|
222
|
16
|
28
|
60
|
49
|
35
|
25
|
57
|
97
|
205
|
50
|
44
|
25
|
|
2025/11
|
59
|
16
|
47
|
123
|
167
|
131
|
50
|
83
|
48
|
85
|
144
|
165
|
28
|
91
|
133
|
45
|
24
|
48
|
71
|
37
|
86
|
98
|
118
|
71
|
31
|
82
|
32
|
103
|
133
|
124
|
|
|
2025/10
|
72
|
45
|
36
|
58
|
39
|
16
|
55
|
32
|
11
|
15
|
22
|
49
|
61
|
50
|
76
|
53
|
36
|
16
|
23
|
25
|
44
|
67
|
75
|
102
|
135
|
58
|
49
|
165
|
191
|
143
|
68
|
|
2025/09
|
41
|
43
|
49
|
56
|
53
|
29
|
46
|
46
|
48
|
40
|
61
|
73
|
61
|
53
|
58
|
32
|
26
|
36
|
44
|
50
|
65
|
37
|
49
|
52
|
62
|
56
|
59
|
56
|
64
|
81
|
|
|
2025/08
|
50
|
42
|
32
|
33
|
37
|
54
|
31
|
27
|
33
|
34
|
36
|
39
|
27
|
40
|
45
|
20
|
36
|
27
|
29
|
31
|
20
|
25
|
33
|
20
|
25
|
41
|
40
|
12
|
46
|
20
|
32
|
|
2025/07
|
32
|
33
|
23
|
43
|
32
|
18
|
33
|
32
|
48
|
52
|
56
|
51
|
27
|
31
|
37
|
26
|
28
|
47
|
31
|
39
|
40
|
38
|
23
|
33
|
40
|
38
|
40
|
43
|
15
|
27
|
38
|
|
2025/06
|
72
|
47
|
22
|
28
|
55
|
66
|
53
|
47
|
52
|
37
|
52
|
70
|
70
|
55
|
22
|
16
|
46
|
56
|
35
|
33
|
43
|
46
|
57
|
64
|
50
|
58
|
49
|
56
|
70
|
30
|
|
|
2025/05
|
35
|
54
|
28
|
54
|
67
|
36
|
62
|
82
|
35
|
27
|
61
|
64
|
68
|
41
|
29
|
79
|
41
|
57
|
82
|
94
|
71
|
75
|
60
|
46
|
57
|
76
|
70
|
64
|
65
|
67
|
69
|
|
2025/04
|
56
|
21
|
55
|
72
|
26
|
76
|
67
|
50
|
57
|
75
|
102
|
129
|
74
|
52
|
63
|
98
|
71
|
50
|
46
|
66
|
94
|
37
|
62
|
35
|
59
|
85
|
49
|
55
|
56
|
66
|
|
|
2025/03
|
206
|
70
|
35
|
56
|
81
|
36
|
55
|
127
|
128
|
119
|
136
|
88
|
105
|
65
|
52
|
25
|
35
|
30
|
54
|
50
|
42
|
65
|
120
|
96
|
59
|
93
|
61
|
47
|
25
|
52
|
68
|
|
2025/02
|
64
|
61
|
15
|
21
|
29
|
61
|
33
|
21
|
41
|
93
|
125
|
81
|
133
|
103
|
124
|
39
|
21
|
50
|
43
|
48
|
41
|
48
|
29
|
68
|
64
|
72
|
140
|
199
|
|||
|
2025/01
|
102
|
35
|
54
|
117
|
98
|
28
|
25
|
17
|
23
|
34
|
43
|
46
|
75
|
51
|
39
|
55
|
73
|
142
|
76
|
80
|
96
|
54
|
64
|
91
|
134
|
104
|
28
|
58
|
331
|
68
|
54
|
|
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