Air Quality
Excellent
No health implications.
3
PM2.5
10
PM10
103
O3
0.4
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
66
Good
Sat
10 May
82
Good
Sun
11 May
89
Good
Mon
12 May
93
Good
Tue
13 May
99
Good
Wed
14 May
99
Good
Thu
15 May
49
Excellent
Air quality in the last 12 months (Keqiao)
|
2025/02
|
32
|
57
|
84
|
55
|
46
|
60
|
61
|
36
|
44
|
57
|
69
|
95
|
97
|
72
|
96
|
53
|
77
|
40
|
62
|
49
|
32
|
59
|
98
|
96
|
109
|
94
|
79
|
51
|
|||
|
2025/01
|
85
|
83
|
76
|
83
|
109
|
91
|
88
|
80
|
49
|
51
|
62
|
71
|
78
|
83
|
60
|
56
|
72
|
84
|
76
|
99
|
146
|
129
|
65
|
47
|
35
|
46
|
46
|
48
|
110
|
73
|
56
|
|
2024/12
|
57
|
64
|
107
|
49
|
46
|
93
|
162
|
41
|
51
|
47
|
33
|
91
|
83
|
99
|
59
|
63
|
66
|
86
|
42
|
59
|
87
|
66
|
74
|
61
|
88
|
142
|
65
|
63
|
67
|
94
|
81
|
|
2024/11
|
9
|
40
|
70
|
69
|
38
|
42
|
35
|
39
|
35
|
48
|
56
|
57
|
43
|
40
|
35
|
33
|
23
|
31
|
37
|
48
|
58
|
94
|
44
|
35
|
33
|
37
|
47
|
53
|
42
|
54
|
|
|
2024/10
|
24
|
33
|
27
|
24
|
22
|
16
|
14
|
34
|
50
|
57
|
74
|
49
|
33
|
51
|
49
|
41
|
38
|
31
|
15
|
45
|
60
|
37
|
52
|
31
|
33
|
21
|
17
|
53
|
48
|
41
|
31
|
|
2024/09
|
59
|
63
|
38
|
33
|
29
|
40
|
48
|
35
|
27
|
43
|
18
|
28
|
14
|
24
|
26
|
21
|
18
|
22
|
20
|
17
|
20
|
33
|
31
|
39
|
50
|
49
|
26
|
42
|
38
|
30
|
|
|
2024/08
|
22
|
30
|
46
|
40
|
46
|
46
|
47
|
52
|
50
|
48
|
41
|
34
|
25
|
30
|
37
|
48
|
39
|
32
|
14
|
19
|
15
|
23
|
48
|
47
|
48
|
51
|
53
|
35
|
26
|
26
|
37
|
|
2024/07
|
50
|
28
|
27
|
27
|
34
|
36
|
36
|
33
|
29
|
32
|
46
|
47
|
41
|
42
|
40
|
29
|
32
|
29
|
25
|
30
|
35
|
21
|
22
|
18
|
30
|
25
|
14
|
16
|
14
|
14
|
22
|
|
2024/06
|
23
|
30
|
36
|
54
|
48
|
21
|
30
|
41
|
51
|
24
|
27
|
24
|
38
|
58
|
55
|
54
|
18
|
21
|
16
|
15
|
28
|
32
|
25
|
23
|
27
|
20
|
11
|
15
|
25
|
43
|
|
|
2024/05
|
36
|
45
|
43
|
32
|
36
|
30
|
66
|
60
|
35
|
47
|
43
|
47
|
64
|
63
|
63
|
37
|
41
|
48
|
52
|
52
|
32
|
54
|
54
|
58
|
39
|
18
|
27
|
27
|
30
|
41
|
32
|
|
2024/04
|
50
|
14
|
22
|
40
|
51
|
49
|
47
|
27
|
47
|
66
|
60
|
72
|
48
|
23
|
58
|
91
|
25
|
47
|
56
|
48
|
45
|
33
|
34
|
45
|
41
|
50
|
51
|
36
|
35
|
24
|
|
|
2024/03
|
48
|
64
|
67
|
49
|
39
|
56
|
95
|
76
|
79
|
88
|
57
|
77
|
70
|
88
|
67
|
45
|
70
|
68
|
61
|
91
|
82
|
53
|
58
|
72
|
53
|
29
|
44
|
34
|
40
|
53
|
77
|
|
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