Air Quality
Excellent
No health implications.
7
PM2.5
18
PM10
59
O3
0.4
CO
7
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Sep
61
Good
Tue
9 Sep
61
Good
Wed
10 Sep
59
Good
Thu
11 Sep
57
Good
Fri
12 Sep
61
Good
Sat
13 Sep
57
Good
Sun
14 Sep
45
Excellent
Huidong Air quality rank
Air quality in the last 12 months (Huidong)
|
2025/08
|
24
|
19
|
19
|
11
|
10
|
18
|
20
|
25
|
25
|
13
|
14
|
22
|
27
|
18
|
13
|
22
|
15
|
10
|
11
|
16
|
18
|
23
|
19
|
16
|
15
|
18
|
23
|
21
|
19
|
18
|
15
|
|
2025/07
|
11
|
17
|
23
|
28
|
26
|
24
|
36
|
25
|
25
|
17
|
12
|
21
|
27
|
26
|
27
|
27
|
32
|
31
|
20
|
10
|
11
|
13
|
14
|
23
|
27
|
34
|
37
|
24
|
33
|
33
|
20
|
|
2025/06
|
27
|
26
|
18
|
16
|
24
|
25
|
23
|
20
|
20
|
20
|
15
|
14
|
13
|
23
|
24
|
20
|
11
|
15
|
10
|
9
|
13
|
16
|
15
|
14
|
14
|
12
|
11
|
14
|
12
|
12
|
|
|
2025/05
|
33
|
38
|
48
|
32
|
34
|
23
|
20
|
36
|
24
|
22
|
29
|
31
|
37
|
32
|
19
|
17
|
18
|
18
|
20
|
16
|
18
|
18
|
22
|
23
|
42
|
33
|
42
|
33
|
23
|
15
|
25
|
|
2025/04
|
19
|
24
|
36
|
50
|
24
|
42
|
51
|
54
|
44
|
32
|
29
|
37
|
170
|
143
|
108
|
83
|
59
|
50
|
27
|
28
|
24
|
27
|
28
|
21
|
16
|
18
|
28
|
30
|
34
|
46
|
|
|
2025/03
|
31
|
26
|
21
|
21
|
14
|
11
|
18
|
21
|
38
|
44
|
36
|
21
|
28
|
21
|
18
|
12
|
46
|
37
|
39
|
45
|
48
|
42
|
49
|
52
|
48
|
36
|
27
|
31
|
9
|
8
|
7
|
|
2025/02
|
24
|
30
|
11
|
21
|
39
|
39
|
21
|
53
|
38
|
38
|
32
|
22
|
43
|
44
|
37
|
41
|
43
|
53
|
32
|
37
|
30
|
32
|
14
|
23
|
41
|
42
|
42
|
30
|
|||
|
2025/01
|
64
|
63
|
55
|
57
|
54
|
67
|
62
|
64
|
58
|
46
|
42
|
36
|
46
|
52
|
50
|
63
|
50
|
53
|
51
|
50
|
49
|
47
|
43
|
34
|
26
|
22
|
25
|
43
|
93
|
52
|
37
|
|
2024/12
|
48
|
48
|
46
|
46
|
51
|
62
|
54
|
33
|
38
|
41
|
46
|
25
|
32
|
59
|
44
|
39
|
48
|
45
|
50
|
62
|
47
|
53
|
64
|
62
|
54
|
48
|
64
|
73
|
74
|
65
|
59
|
|
2024/11
|
25
|
22
|
41
|
41
|
40
|
55
|
40
|
33
|
38
|
43
|
46
|
37
|
34
|
13
|
21
|
16
|
20
|
25
|
14
|
9
|
17
|
22
|
31
|
36
|
24
|
15
|
28
|
31
|
31
|
41
|
|
|
2024/10
|
29
|
29
|
36
|
30
|
28
|
30
|
30
|
41
|
33
|
30
|
40
|
46
|
37
|
32
|
34
|
30
|
27
|
30
|
39
|
32
|
35
|
31
|
26
|
34
|
38
|
39
|
41
|
21
|
22
|
33
|
39
|
|
2024/09
|
19
|
25
|
29
|
25
|
20
|
9
|
16
|
12
|
14
|
20
|
35
|
36
|
39
|
26
|
17
|
19
|
23
|
20
|
30
|
22
|
14
|
14
|
10
|
12
|
19
|
31
|
46
|
21
|
25
|
29
|
|
|
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