Air Quality
Excellent
No health implications.
14
PM2.5
24
PM10
22
O3
0.5
CO
5
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Sep
50
Excellent
Thu
11 Sep
51
Good
Fri
12 Sep
51
Good
Sat
13 Sep
51
Good
Sun
14 Sep
51
Good
Mon
15 Sep
21
Excellent
Tue
16 Sep
34
Excellent
Air quality in the last 12 months (Huidong)
|
2025/08
|
28
|
30
|
31
|
30
|
28
|
27
|
32
|
25
|
25
|
22
|
21
|
21
|
27
|
36
|
37
|
26
|
20
|
26
|
26
|
25
|
26
|
18
|
17
|
18
|
22
|
25
|
25
|
24
|
29
|
31
|
27
|
|
2025/07
|
22
|
17
|
21
|
21
|
23
|
21
|
27
|
23
|
19
|
25
|
21
|
25
|
28
|
32
|
32
|
32
|
34
|
36
|
22
|
27
|
20
|
18
|
16
|
21
|
18
|
20
|
25
|
25
|
35
|
36
|
25
|
|
2025/06
|
22
|
21
|
19
|
26
|
33
|
36
|
34
|
30
|
34
|
40
|
33
|
39
|
46
|
44
|
19
|
27
|
23
|
19
|
16
|
17
|
15
|
17
|
24
|
17
|
18
|
24
|
21
|
23
|
21
|
17
|
|
|
2025/05
|
42
|
37
|
31
|
29
|
28
|
28
|
28
|
26
|
33
|
35
|
34
|
36
|
33
|
29
|
32
|
32
|
31
|
31
|
31
|
30
|
33
|
33
|
44
|
30
|
39
|
32
|
21
|
17
|
19
|
20
|
15
|
|
2025/04
|
44
|
49
|
58
|
57
|
45
|
45
|
44
|
55
|
55
|
53
|
47
|
70
|
61
|
53
|
50
|
39
|
28
|
29
|
30
|
27
|
25
|
30
|
43
|
39
|
38
|
56
|
51
|
38
|
40
|
26
|
|
|
2025/03
|
39
|
43
|
35
|
40
|
37
|
28
|
37
|
53
|
50
|
49
|
46
|
49
|
61
|
58
|
42
|
29
|
26
|
16
|
29
|
45
|
59
|
63
|
48
|
34
|
30
|
31
|
34
|
76
|
66
|
56
|
49
|
|
2025/02
|
45
|
46
|
21
|
38
|
48
|
43
|
29
|
33
|
41
|
33
|
37
|
36
|
40
|
48
|
38
|
43
|
33
|
39
|
47
|
36
|
39
|
36
|
38
|
36
|
33
|
33
|
35
|
33
|
|||
|
2025/01
|
52
|
48
|
51
|
51
|
44
|
54
|
41
|
31
|
38
|
42
|
22
|
42
|
46
|
42
|
44
|
62
|
55
|
56
|
57
|
60
|
53
|
50
|
58
|
42
|
33
|
34
|
43
|
47
|
58
|
51
|
36
|
|
2024/12
|
41
|
41
|
44
|
39
|
38
|
42
|
42
|
43
|
34
|
31
|
37
|
43
|
40
|
31
|
41
|
52
|
45
|
41
|
40
|
36
|
46
|
40
|
40
|
43
|
47
|
48
|
55
|
54
|
54
|
45
|
43
|
|
2024/11
|
29
|
26
|
35
|
28
|
29
|
43
|
31
|
17
|
21
|
33
|
33
|
32
|
33
|
41
|
45
|
43
|
43
|
39
|
42
|
41
|
37
|
26
|
29
|
28
|
33
|
30
|
31
|
34
|
31
|
32
|
|
|
2024/10
|
14
|
23
|
29
|
32
|
21
|
18
|
20
|
29
|
21
|
21
|
21
|
25
|
32
|
31
|
25
|
23
|
30
|
37
|
42
|
36
|
29
|
25
|
25
|
36
|
39
|
36
|
25
|
32
|
42
|
39
|
35
|
|
2024/09
|
29
|
18
|
25
|
28
|
22
|
26
|
32
|
26
|
24
|
18
|
24
|
25
|
28
|
32
|
36
|
25
|
24
|
27
|
37
|
39
|
35
|
27
|
24
|
40
|
35
|
33
|
38
|
19
|
21
|
25
|
|
|
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