Air Quality
Excellent
No health implications.
11
PM2.5
16
PM10
60
O3
0.5
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Feb
62
Good
Thu
13 Feb
64
Good
Fri
14 Feb
57
Good
Sat
15 Feb
58
Good
Sun
16 Feb
61
Good
Mon
17 Feb
61
Good
Tue
18 Feb
57
Good
Air quality in the last 12 months (Huidong)
|
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
|
|
|
2024/08
|
28
|
26
|
29
|
33
|
41
|
29
|
31
|
34
|
26
|
26
|
26
|
21
|
18
|
23
|
23
|
23
|
12
|
17
|
18
|
20
|
11
|
19
|
25
|
33
|
29
|
31
|
34
|
39
|
30
|
23
|
17
|
|
2024/07
|
20
|
19
|
12
|
14
|
13
|
14
|
12
|
19
|
17
|
14
|
11
|
12
|
12
|
18
|
13
|
11
|
14
|
18
|
17
|
17
|
15
|
15
|
18
|
36
|
49
|
18
|
14
|
7
|
10
|
11
|
12
|
|
2024/06
|
12
|
18
|
15
|
21
|
23
|
17
|
15
|
14
|
11
|
12
|
17
|
25
|
24
|
23
|
17
|
18
|
19
|
18
|
19
|
17
|
17
|
24
|
14
|
13
|
14
|
17
|
15
|
16
|
13
|
16
|
|
|
2024/05
|
14
|
22
|
25
|
22
|
14
|
29
|
22
|
33
|
38
|
41
|
31
|
26
|
27
|
29
|
35
|
47
|
44
|
35
|
33
|
13
|
10
|
14
|
15
|
11
|
12
|
18
|
19
|
14
|
24
|
22
|
12
|
|
2024/04
|
36
|
41
|
25
|
25
|
37
|
23
|
19
|
28
|
17
|
30
|
39
|
47
|
46
|
27
|
28
|
33
|
24
|
27
|
28
|
24
|
16
|
24
|
22
|
22
|
15
|
16
|
22
|
10
|
19
|
17
|
|
|
2024/03
|
16
|
19
|
28
|
40
|
45
|
33
|
28
|
34
|
56
|
18
|
17
|
21
|
55
|
54
|
55
|
56
|
44
|
37
|
25
|
58
|
53
|
55
|
43
|
27
|
28
|
42
|
33
|
39
|
50
|
36
|
24
|
|
2024/02
|
28
|
24
|
24
|
25
|
18
|
26
|
15
|
10
|
29
|
74
|
75
|
54
|
50
|
45
|
38
|
31
|
28
|
28
|
25
|
21
|
21
|
21
|
25
|
22
|
18
|
25
|
26
|
31
|
32
|
||
|
1
|
2
|
3
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4
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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