Air Quality
Excellent
No health implications.
25
PM2.5
39
PM10
144
O3
0.5
CO
18
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Jul
65
Good
Wed
22 Jul
64
Good
Thu
23 Jul
62
Good
Fri
24 Jul
61
Good
Sat
25 Jul
63
Good
Sun
26 Jul
52
Good
Mon
27 Jul
49
Excellent
Air quality in the last 12 months (Huidong)
|
2026/06
|
26
|
28
|
24
|
29
|
35
|
38
|
34
|
25
|
27
|
29
|
36
|
44
|
25
|
27
|
33
|
20
|
22
|
22
|
25
|
24
|
19
|
19
|
19
|
20
|
18
|
19
|
24
|
20
|
21
|
24
|
|
|
2026/05
|
32
|
25
|
24
|
23
|
36
|
34
|
36
|
39
|
32
|
28
|
31
|
26
|
30
|
34
|
31
|
34
|
34
|
33
|
36
|
39
|
40
|
36
|
32
|
28
|
32
|
36
|
36
|
41
|
37
|
29
|
29
|
|
2026/04
|
33
|
34
|
29
|
33
|
41
|
37
|
33
|
37
|
32
|
35
|
35
|
35
|
41
|
47
|
54
|
49
|
37
|
39
|
51
|
40
|
43
|
44
|
35
|
40
|
39
|
46
|
34
|
27
|
27
|
34
|
|
|
2026/03
|
50
|
44
|
44
|
33
|
52
|
62
|
67
|
54
|
25
|
29
|
51
|
54
|
35
|
30
|
23
|
33
|
35
|
28
|
37
|
35
|
39
|
40
|
30
|
32
|
37
|
33
|
36
|
41
|
33
|
28
|
28
|
|
2026/02
|
48
|
41
|
41
|
37
|
34
|
36
|
50
|
39
|
36
|
35
|
32
|
38
|
37
|
36
|
36
|
56
|
104
|
59
|
42
|
41
|
39
|
45
|
44
|
46
|
49
|
55
|
47
|
45
|
|||
|
2026/01
|
50
|
38
|
33
|
30
|
35
|
37
|
39
|
42
|
72
|
63
|
55
|
45
|
52
|
53
|
54
|
48
|
66
|
60
|
65
|
55
|
47
|
52
|
72
|
59
|
55
|
52
|
67
|
76
|
54
|
37
|
42
|
|
2025/12
|
61
|
57
|
44
|
42
|
39
|
48
|
43
|
51
|
47
|
48
|
59
|
48
|
52
|
56
|
51
|
56
|
51
|
61
|
55
|
55
|
48
|
45
|
54
|
50
|
39
|
61
|
63
|
61
|
61
|
50
|
52
|
|
2025/11
|
21
|
16
|
14
|
32
|
34
|
31
|
30
|
32
|
25
|
25
|
28
|
30
|
30
|
33
|
34
|
37
|
38
|
32
|
19
|
37
|
41
|
40
|
42
|
41
|
44
|
52
|
44
|
51
|
56
|
62
|
|
|
2025/10
|
17
|
19
|
23
|
22
|
23
|
23
|
19
|
17
|
20
|
24
|
24
|
24
|
27
|
28
|
26
|
24
|
19
|
20
|
22
|
23
|
19
|
19
|
27
|
34
|
38
|
25
|
26
|
33
|
32
|
34
|
33
|
|
2025/09
|
28
|
27
|
27
|
28
|
24
|
24
|
28
|
31
|
24
|
31
|
23
|
23
|
25
|
29
|
27
|
24
|
21
|
20
|
20
|
29
|
26
|
25
|
19
|
21
|
36
|
24
|
24
|
23
|
21
|
18
|
|
|
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
|
|
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