Air Quality
Excellent
No health implications.
24
PM2.5
37
PM10
137
O3
1.0
CO
6
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
83
Good
Tue
30 Apr
46
Excellent
Wed
1 May
80
Good
Thu
2 May
91
Good
Fri
3 May
88
Good
Sat
4 May
68
Good
Sun
5 May
68
Good
Air quality in the last 12 months (Keqiao)
|
2024/02
|
25
|
30
|
24
|
40
|
47
|
91
|
91
|
100
|
141
|
200
|
89
|
64
|
43
|
45
|
47
|
31
|
36
|
31
|
52
|
18
|
15
|
28
|
43
|
51
|
77
|
114
|
91
|
46
|
29
|
||
|
2024/01
|
164
|
150
|
105
|
112
|
85
|
148
|
195
|
100
|
139
|
174
|
158
|
103
|
136
|
142
|
87
|
45
|
59
|
95
|
37
|
30
|
83
|
47
|
33
|
45
|
72
|
85
|
123
|
119
|
117
|
68
|
50
|
|
2023/12
|
41
|
66
|
117
|
97
|
58
|
75
|
72
|
56
|
54
|
77
|
30
|
43
|
67
|
48
|
35
|
43
|
42
|
42
|
41
|
83
|
55
|
46
|
66
|
79
|
85
|
107
|
148
|
224
|
220
|
171
|
175
|
|
2023/11
|
53
|
43
|
54
|
69
|
49
|
32
|
59
|
51
|
53
|
35
|
32
|
43
|
49
|
66
|
102
|
69
|
86
|
66
|
65
|
82
|
76
|
62
|
93
|
59
|
58
|
66
|
70
|
74
|
87
|
52
|
|
|
2023/10
|
34
|
33
|
34
|
35
|
36
|
28
|
22
|
26
|
44
|
51
|
48
|
44
|
44
|
46
|
57
|
67
|
82
|
67
|
70
|
36
|
49
|
50
|
52
|
56
|
83
|
92
|
77
|
36
|
53
|
61
|
61
|
|
2023/09
|
40
|
44
|
48
|
26
|
27
|
33
|
38
|
43
|
51
|
49
|
61
|
61
|
34
|
27
|
25
|
30
|
42
|
48
|
35
|
27
|
23
|
25
|
20
|
48
|
48
|
59
|
55
|
51
|
42
|
41
|
|
|
2023/08
|
28
|
27
|
29
|
31
|
38
|
55
|
45
|
39
|
48
|
44
|
68
|
57
|
64
|
58
|
37
|
38
|
57
|
37
|
28
|
29
|
32
|
32
|
36
|
54
|
48
|
34
|
22
|
21
|
21
|
25
|
36
|
|
2023/07
|
30
|
39
|
36
|
26
|
27
|
28
|
30
|
29
|
39
|
43
|
44
|
44
|
45
|
45
|
43
|
36
|
29
|
38
|
42
|
24
|
32
|
20
|
21
|
32
|
24
|
17
|
18
|
15
|
15
|
17
|
24
|
|
2023/06
|
46
|
72
|
63
|
60
|
67
|
38
|
37
|
47
|
43
|
54
|
74
|
48
|
47
|
62
|
73
|
58
|
36
|
54
|
28
|
26
|
45
|
62
|
27
|
20
|
16
|
28
|
27
|
27
|
31
|
31
|
|
|
2023/05
|
66
|
38
|
36
|
35
|
35
|
46
|
27
|
40
|
46
|
54
|
48
|
48
|
50
|
62
|
70
|
46
|
29
|
26
|
37
|
60
|
68
|
66
|
82
|
52
|
59
|
64
|
40
|
38
|
49
|
71
|
48
|
|
2023/04
|
60
|
60
|
39
|
31
|
46
|
52
|
47
|
68
|
56
|
56
|
54
|
293
|
113
|
65
|
77
|
81
|
85
|
65
|
35
|
36
|
54
|
81
|
83
|
42
|
53
|
52
|
57
|
51
|
75
|
83
|
|
|
2023/03
|
79
|
88
|
62
|
92
|
100
|
73
|
73
|
76
|
60
|
75
|
60
|
73
|
63
|
60
|
70
|
73
|
39
|
56
|
48
|
39
|
45
|
46
|
30
|
107
|
57
|
66
|
95
|
87
|
51
|
41
|
57
|
|
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