Air Quality
Excellent
No health implications.
27
PM2.5
38
PM10
57
O3
0.4
CO
5
SO2
27
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
77
Good
Tue
30 Apr
54
Good
Wed
1 May
73
Good
Thu
2 May
95
Good
Fri
3 May
81
Good
Sat
4 May
94
Good
Sun
5 May
94
Good
Air quality in the last 12 months (Huaian)
|
2024/02
|
32
|
28
|
47
|
56
|
64
|
77
|
128
|
188
|
218
|
257
|
243
|
128
|
74
|
104
|
72
|
35
|
52
|
62
|
54
|
26
|
23
|
30
|
39
|
62
|
95
|
80
|
59
|
49
|
44
|
||
|
2024/01
|
91
|
101
|
115
|
103
|
128
|
151
|
44
|
52
|
103
|
76
|
88
|
158
|
199
|
172
|
45
|
39
|
41
|
59
|
65
|
88
|
70
|
41
|
37
|
54
|
73
|
91
|
105
|
113
|
164
|
108
|
52
|
|
2023/12
|
59
|
66
|
125
|
136
|
127
|
128
|
110
|
66
|
91
|
59
|
24
|
40
|
58
|
43
|
30
|
40
|
24
|
42
|
73
|
58
|
44
|
35
|
44
|
75
|
97
|
132
|
144
|
147
|
93
|
182
|
202
|
|
2023/11
|
73
|
59
|
104
|
60
|
35
|
45
|
47
|
68
|
113
|
29
|
38
|
49
|
46
|
76
|
101
|
109
|
72
|
51
|
77
|
126
|
110
|
130
|
151
|
44
|
29
|
70
|
102
|
116
|
55
|
40
|
|
|
2023/10
|
37
|
29
|
29
|
53
|
44
|
39
|
24
|
36
|
58
|
55
|
55
|
42
|
55
|
83
|
94
|
80
|
73
|
128
|
93
|
39
|
50
|
59
|
79
|
87
|
97
|
150
|
86
|
46
|
55
|
74
|
95
|
|
2023/09
|
41
|
50
|
33
|
30
|
23
|
26
|
44
|
40
|
35
|
36
|
33
|
24
|
25
|
29
|
30
|
28
|
38
|
50
|
54
|
31
|
28
|
30
|
30
|
25
|
23
|
46
|
67
|
71
|
62
|
40
|
|
|
2023/08
|
18
|
25
|
21
|
23
|
29
|
28
|
32
|
39
|
44
|
55
|
54
|
72
|
47
|
33
|
27
|
28
|
31
|
31
|
33
|
23
|
35
|
35
|
47
|
42
|
41
|
34
|
26
|
25
|
35
|
41
|
39
|
|
2023/07
|
32
|
27
|
29
|
35
|
44
|
38
|
23
|
33
|
30
|
26
|
29
|
53
|
42
|
33
|
52
|
55
|
36
|
18
|
18
|
16
|
25
|
25
|
32
|
39
|
44
|
29
|
18
|
13
|
17
|
22
|
28
|
|
2023/06
|
42
|
87
|
55
|
40
|
28
|
54
|
73
|
69
|
71
|
65
|
42
|
45
|
55
|
69
|
75
|
92
|
48
|
24
|
22
|
37
|
75
|
77
|
70
|
31
|
27
|
26
|
36
|
34
|
25
|
41
|
|
|
2023/05
|
85
|
68
|
38
|
32
|
33
|
53
|
39
|
48
|
44
|
38
|
46
|
73
|
85
|
73
|
66
|
72
|
52
|
31
|
35
|
67
|
191
|
178
|
80
|
48
|
59
|
68
|
61
|
59
|
30
|
30
|
50
|
|
2023/04
|
53
|
61
|
52
|
47
|
38
|
55
|
64
|
61
|
68
|
77
|
292
|
272
|
96
|
89
|
133
|
80
|
92
|
84
|
51
|
55
|
79
|
64
|
53
|
41
|
53
|
61
|
71
|
80
|
83
|
90
|
|
|
2023/03
|
135
|
75
|
59
|
109
|
132
|
111
|
79
|
87
|
131
|
91
|
99
|
93
|
64
|
73
|
214
|
83
|
28
|
55
|
58
|
83
|
84
|
38
|
360
|
98
|
81
|
78
|
104
|
112
|
83
|
81
|
74
|
|
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