Air Quality
Excellent
No health implications.
3
PM2.5
14
PM10
26
O3
0.3
CO
2
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Aug
71
Good
Tue
12 Aug
69
Good
Wed
13 Aug
75
Good
Thu
14 Aug
69
Good
Fri
15 Aug
74
Good
Sat
16 Aug
39
Excellent
Sun
17 Aug
46
Excellent
Air quality in the last 12 months (Hui'an)
|
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
|
|
|
2025/03
|
70
|
33
|
27
|
29
|
11
|
13
|
31
|
42
|
32
|
36
|
49
|
51
|
39
|
29
|
38
|
17
|
46
|
36
|
43
|
45
|
43
|
48
|
64
|
70
|
66
|
46
|
34
|
53
|
24
|
7
|
9
|
|
2025/02
|
43
|
17
|
16
|
56
|
49
|
32
|
18
|
52
|
31
|
33
|
35
|
96
|
66
|
49
|
38
|
56
|
65
|
43
|
31
|
17
|
14
|
23
|
12
|
49
|
57
|
56
|
65
|
74
|
|||
|
2025/01
|
58
|
52
|
43
|
40
|
43
|
49
|
63
|
47
|
54
|
46
|
33
|
43
|
44
|
42
|
80
|
58
|
50
|
36
|
43
|
39
|
64
|
48
|
46
|
22
|
31
|
34
|
19
|
49
|
67
|
35
|
34
|
|
2024/12
|
44
|
46
|
28
|
42
|
38
|
35
|
25
|
54
|
37
|
29
|
30
|
20
|
29
|
47
|
73
|
48
|
39
|
41
|
42
|
25
|
41
|
57
|
32
|
24
|
29
|
50
|
62
|
76
|
45
|
45
|
53
|
|
2024/11
|
19
|
17
|
33
|
35
|
44
|
44
|
31
|
27
|
27
|
29
|
22
|
22
|
23
|
21
|
20
|
18
|
23
|
28
|
16
|
13
|
12
|
28
|
36
|
27
|
17
|
18
|
36
|
33
|
39
|
42
|
|
|
2024/10
|
13
|
12
|
15
|
15
|
15
|
18
|
19
|
11
|
31
|
39
|
42
|
35
|
27
|
31
|
32
|
27
|
34
|
38
|
34
|
18
|
25
|
30
|
38
|
36
|
21
|
25
|
24
|
19
|
34
|
39
|
21
|
|
2024/09
|
39
|
38
|
32
|
23
|
22
|
17
|
18
|
20
|
20
|
40
|
51
|
41
|
21
|
20
|
23
|
22
|
21
|
27
|
24
|
20
|
23
|
8
|
10
|
20
|
28
|
17
|
18
|
21
|
24
|
17
|
|
|
2024/08
|
28
|
44
|
50
|
37
|
34
|
28
|
31
|
42
|
42
|
44
|
46
|
48
|
41
|
31
|
26
|
15
|
18
|
18
|
18
|
12
|
21
|
25
|
34
|
40
|
43
|
42
|
54
|
46
|
35
|
43
|
40
|
|
2024/07
|
21
|
21
|
22
|
25
|
28
|
21
|
20
|
22
|
21
|
24
|
25
|
30
|
26
|
29
|
34
|
33
|
25
|
24
|
28
|
30
|
29
|
33
|
27
|
18
|
10
|
14
|
15
|
28
|
24
|
26
|
14
|
|
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