Air Quality
Excellent
No health implications.
5
PM2.5
8
PM10
31
O3
0.8
CO
4
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Mar
58
Good
Wed
4 Mar
57
Good
Thu
5 Mar
65
Good
Fri
6 Mar
55
Good
Sat
7 Mar
59
Good
Sun
8 Mar
58
Good
Mon
9 Mar
32
Excellent
Air quality in the last 12 months (Huidong)
|
2026/01
|
54
|
22
|
31
|
49
|
44
|
35
|
41
|
32
|
37
|
44
|
40
|
60
|
58
|
52
|
51
|
50
|
50
|
55
|
54
|
51
|
33
|
32
|
36
|
42
|
39
|
36
|
45
|
41
|
41
|
37
|
28
|
|
2025/12
|
33
|
35
|
50
|
63
|
56
|
52
|
52
|
49
|
52
|
52
|
50
|
46
|
40
|
36
|
40
|
51
|
45
|
46
|
39
|
28
|
44
|
65
|
42
|
42
|
26
|
35
|
42
|
44
|
42
|
42
|
46
|
|
2025/11
|
31
|
36
|
35
|
20
|
13
|
24
|
33
|
34
|
30
|
18
|
25
|
23
|
15
|
23
|
39
|
45
|
41
|
41
|
25
|
30
|
32
|
39
|
48
|
47
|
49
|
61
|
54
|
61
|
59
|
57
|
|
|
2025/10
|
21
|
17
|
19
|
22
|
16
|
15
|
25
|
27
|
29
|
29
|
23
|
18
|
15
|
17
|
21
|
30
|
31
|
33
|
33
|
19
|
11
|
10
|
24
|
35
|
33
|
40
|
56
|
47
|
40
|
31
|
28
|
|
2025/09
|
15
|
14
|
16
|
17
|
14
|
21
|
14
|
14
|
18
|
16
|
15
|
15
|
14
|
13
|
15
|
20
|
26
|
17
|
10
|
11
|
12
|
22
|
18
|
12
|
14
|
20
|
22
|
24
|
19
|
25
|
|
|
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
|
|||
|
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