Air Quality
Excellent
No health implications.
15
PM2.5
26
PM10
81
O3
0.6
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
66
Good
Sun
5 May
67
Good
Mon
6 May
67
Good
Tue
7 May
70
Good
Wed
8 May
59
Good
Thu
9 May
57
Good
Fri
10 May
57
Good
Air quality in the last 12 months (Hui'an)
|
2024/02
|
53
|
27
|
24
|
23
|
26
|
26
|
18
|
28
|
61
|
138
|
58
|
48
|
57
|
87
|
73
|
27
|
36
|
73
|
42
|
30
|
25
|
25
|
19
|
27
|
40
|
36
|
31
|
42
|
59
|
||
|
2024/01
|
73
|
59
|
50
|
44
|
55
|
62
|
89
|
55
|
57
|
56
|
86
|
84
|
50
|
35
|
75
|
44
|
37
|
59
|
43
|
30
|
25
|
20
|
21
|
28
|
38
|
53
|
65
|
77
|
45
|
37
|
44
|
|
2023/12
|
43
|
34
|
30
|
23
|
34
|
41
|
40
|
53
|
68
|
67
|
70
|
27
|
26
|
35
|
66
|
21
|
28
|
25
|
25
|
17
|
42
|
44
|
26
|
31
|
46
|
44
|
37
|
36
|
36
|
61
|
73
|
|
2023/11
|
33
|
34
|
43
|
43
|
58
|
59
|
39
|
44
|
46
|
43
|
22
|
24
|
31
|
33
|
29
|
24
|
53
|
63
|
50
|
44
|
36
|
37
|
46
|
72
|
39
|
31
|
46
|
53
|
59
|
63
|
|
|
2023/10
|
31
|
45
|
43
|
46
|
41
|
26
|
24
|
22
|
28
|
28
|
41
|
36
|
34
|
39
|
49
|
53
|
56
|
48
|
50
|
54
|
32
|
27
|
27
|
31
|
32
|
28
|
30
|
34
|
36
|
36
|
32
|
|
2023/09
|
28
|
23
|
18
|
15
|
18
|
14
|
25
|
26
|
31
|
34
|
36
|
34
|
35
|
44
|
35
|
47
|
65
|
35
|
24
|
30
|
44
|
25
|
25
|
23
|
25
|
27
|
31
|
31
|
25
|
29
|
|
|
2023/08
|
35
|
40
|
45
|
55
|
60
|
67
|
61
|
50
|
57
|
39
|
27
|
20
|
26
|
33
|
44
|
44
|
39
|
35
|
25
|
28
|
38
|
35
|
28
|
39
|
42
|
29
|
26
|
43
|
39
|
25
|
23
|
|
2023/07
|
17
|
19
|
19
|
23
|
28
|
37
|
36
|
45
|
52
|
43
|
25
|
22
|
30
|
37
|
31
|
26
|
28
|
21
|
28
|
37
|
27
|
24
|
25
|
33
|
29
|
38
|
26
|
21
|
21
|
25
|
35
|
|
2023/06
|
28
|
38
|
40
|
48
|
42
|
29
|
29
|
37
|
25
|
19
|
30
|
31
|
39
|
33
|
30
|
31
|
21
|
30
|
31
|
32
|
34
|
32
|
27
|
18
|
21
|
24
|
30
|
39
|
28
|
20
|
|
|
2023/05
|
57
|
46
|
57
|
34
|
24
|
24
|
26
|
32
|
38
|
45
|
43
|
52
|
60
|
77
|
90
|
55
|
45
|
40
|
51
|
36
|
35
|
34
|
56
|
65
|
65
|
56
|
52
|
32
|
23
|
26
|
27
|
|
2023/04
|
45
|
47
|
43
|
61
|
34
|
44
|
27
|
55
|
40
|
40
|
54
|
67
|
98
|
82
|
64
|
64
|
63
|
44
|
35
|
37
|
28
|
52
|
63
|
64
|
47
|
35
|
51
|
53
|
69
|
42
|
|
|
2023/03
|
64
|
76
|
49
|
56
|
53
|
54
|
47
|
58
|
72
|
56
|
49
|
64
|
64
|
46
|
55
|
57
|
41
|
51
|
36
|
69
|
79
|
50
|
51
|
52
|
26
|
33
|
55
|
42
|
40
|
39
|
39
|
|
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