Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
39
O3
0.9
CO
2
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Apr
34
Excellent
Fri
24 Apr
38
Excellent
Sat
25 Apr
39
Excellent
Sun
26 Apr
51
Good
Mon
27 Apr
61
Good
Tue
28 Apr
57
Good
Wed
29 Apr
38
Excellent
Air quality in the last 12 months (Hui'an)
|
2026/03
|
26
|
51
|
22
|
26
|
22
|
40
|
47
|
35
|
37
|
36
|
43
|
41
|
44
|
35
|
33
|
31
|
40
|
48
|
30
|
40
|
32
|
36
|
44
|
27
|
43
|
37
|
37
|
30
|
46
|
53
|
44
|
|
2026/02
|
20
|
37
|
46
|
43
|
53
|
54
|
24
|
37
|
33
|
34
|
41
|
53
|
46
|
49
|
41
|
61
|
33
|
38
|
41
|
62
|
63
|
64
|
71
|
71
|
33
|
38
|
42
|
17
|
|||
|
2026/01
|
28
|
26
|
36
|
37
|
52
|
26
|
39
|
43
|
50
|
55
|
59
|
59
|
56
|
50
|
57
|
57
|
56
|
43
|
40
|
27
|
29
|
42
|
32
|
31
|
29
|
37
|
32
|
28
|
40
|
31
|
21
|
|
2025/12
|
44
|
37
|
51
|
40
|
33
|
31
|
36
|
49
|
47
|
34
|
43
|
52
|
40
|
38
|
43
|
42
|
45
|
59
|
50
|
49
|
67
|
27
|
34
|
53
|
24
|
36
|
25
|
24
|
38
|
39
|
40
|
|
2025/11
|
26
|
43
|
39
|
12
|
15
|
22
|
32
|
31
|
31
|
35
|
19
|
7
|
10
|
32
|
45
|
34
|
32
|
26
|
25
|
34
|
36
|
40
|
38
|
42
|
45
|
79
|
53
|
94
|
74
|
57
|
|
|
2025/10
|
35
|
20
|
28
|
29
|
38
|
41
|
30
|
29
|
30
|
29
|
28
|
30
|
39
|
37
|
24
|
31
|
32
|
29
|
24
|
22
|
14
|
16
|
24
|
25
|
28
|
40
|
39
|
22
|
29
|
30
|
32
|
|
2025/09
|
37
|
37
|
42
|
40
|
31
|
18
|
17
|
17
|
19
|
30
|
27
|
35
|
40
|
32
|
33
|
25
|
20
|
21
|
18
|
17
|
23
|
21
|
22
|
23
|
24
|
17
|
21
|
22
|
37
|
32
|
|
|
2025/08
|
36
|
28
|
25
|
17
|
17
|
26
|
37
|
47
|
29
|
22
|
21
|
26
|
31
|
25
|
18
|
18
|
20
|
23
|
25
|
28
|
31
|
37
|
38
|
36
|
25
|
18
|
17
|
19
|
18
|
17
|
20
|
|
2025/07
|
23
|
21
|
30
|
29
|
19
|
23
|
26
|
45
|
42
|
15
|
12
|
22
|
37
|
30
|
36
|
40
|
41
|
27
|
28
|
21
|
16
|
14
|
18
|
21
|
21
|
34
|
38
|
29
|
22
|
45
|
43
|
|
2025/06
|
45
|
40
|
12
|
23
|
35
|
32
|
30
|
33
|
26
|
29
|
26
|
21
|
21
|
21
|
25
|
32
|
26
|
33
|
21
|
22
|
18
|
27
|
37
|
30
|
27
|
22
|
23
|
23
|
30
|
23
|
|
|
2025/05
|
62
|
54
|
55
|
47
|
41
|
42
|
49
|
46
|
29
|
30
|
30
|
35
|
35
|
41
|
38
|
27
|
21
|
24
|
29
|
32
|
31
|
45
|
47
|
21
|
49
|
37
|
29
|
17
|
12
|
31
|
40
|
|
2025/04
|
16
|
30
|
44
|
47
|
47
|
48
|
55
|
54
|
68
|
54
|
43
|
25
|
115
|
95
|
81
|
68
|
63
|
60
|
47
|
38
|
37
|
43
|
37
|
26
|
11
|
15
|
26
|
47
|
42
|
43
|
|
|
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