Air Quality
Excellent
No health implications.
18
PM2.5
44
PM10
90
O3
0.6
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 May
102
Lightly
Tue
30 May
101
Lightly
Wed
31 May
96
Good
Thu
1 Jun
86
Good
Fri
2 Jun
75
Good
Sat
3 Jun
70
Good
Sun
4 Jun
65
Good
Air quality in the last 12 months (Huidong)
|
2023/04
|
26
|
30
|
33
|
38
|
22
|
24
|
25
|
53
|
61
|
44
|
38
|
42
|
49
|
58
|
46
|
46
|
38
|
34
|
29
|
32
|
28
|
30
|
41
|
43
|
19
|
20
|
37
|
37
|
32
|
45
|
|
|
2023/03
|
56
|
62
|
67
|
57
|
58
|
58
|
54
|
54
|
55
|
55
|
54
|
56
|
75
|
67
|
56
|
55
|
41
|
45
|
33
|
33
|
35
|
28
|
31
|
32
|
23
|
12
|
15
|
21
|
30
|
30
|
24
|
|
2023/02
|
46
|
42
|
51
|
51
|
44
|
24
|
35
|
26
|
30
|
29
|
23
|
25
|
24
|
17
|
27
|
40
|
49
|
55
|
50
|
62
|
69
|
50
|
40
|
48
|
49
|
53
|
52
|
46
|
|||
|
2023/01
|
52
|
44
|
45
|
48
|
50
|
39
|
44
|
54
|
37
|
13
|
22
|
30
|
26
|
18
|
16
|
18
|
33
|
38
|
39
|
44
|
50
|
88
|
70
|
44
|
62
|
56
|
55
|
61
|
53
|
43
|
47
|
|
2022/12
|
11
|
12
|
22
|
18
|
16
|
19
|
22
|
31
|
33
|
35
|
48
|
57
|
53
|
21
|
21
|
16
|
43
|
34
|
37
|
49
|
39
|
43
|
46
|
36
|
43
|
51
|
52
|
59
|
101
|
70
|
42
|
|
2022/11
|
37
|
17
|
17
|
23
|
18
|
19
|
17
|
20
|
32
|
42
|
44
|
42
|
47
|
46
|
51
|
44
|
45
|
46
|
43
|
36
|
44
|
33
|
14
|
14
|
19
|
15
|
34
|
33
|
26
|
20
|
|
|
2022/10
|
21
|
23
|
23
|
37
|
37
|
30
|
34
|
33
|
41
|
37
|
46
|
44
|
41
|
43
|
44
|
51
|
52
|
48
|
39
|
47
|
48
|
44
|
45
|
53
|
48
|
47
|
41
|
48
|
45
|
37
|
50
|
|
2022/09
|
33
|
31
|
48
|
39
|
44
|
56
|
35
|
39
|
49
|
57
|
61
|
54
|
56
|
54
|
54
|
65
|
73
|
65
|
53
|
56
|
49
|
49
|
46
|
49
|
54
|
46
|
38
|
30
|
32
|
23
|
|
|
2022/08
|
40
|
28
|
23
|
16
|
17
|
18
|
20
|
18
|
11
|
15
|
14
|
18
|
22
|
27
|
23
|
18
|
16
|
19
|
15
|
16
|
19
|
33
|
48
|
30
|
17
|
20
|
37
|
42
|
29
|
33
|
35
|
|
2022/07
|
15
|
19
|
26
|
26
|
25
|
22
|
17
|
21
|
19
|
20
|
22
|
22
|
21
|
26
|
25
|
30
|
28
|
25
|
23
|
19
|
20
|
42
|
43
|
43
|
51
|
29
|
29
|
52
|
51
|
46
|
79
|
|
2022/06
|
20
|
21
|
20
|
24
|
22
|
21
|
15
|
14
|
18
|
16
|
17
|
20
|
22
|
16
|
18
|
16
|
15
|
16
|
19
|
19
|
22
|
19
|
22
|
25
|
24
|
18
|
19
|
21
|
19
|
14
|
|
|
2022/05
|
17
|
19
|
31
|
41
|
47
|
37
|
37
|
38
|
40
|
21
|
15
|
13
|
15
|
16
|
21
|
22
|
26
|
41
|
45
|
43
|
42
|
32
|
28
|
23
|
20
|
20
|
18
|
19
|
17
|
17
|
17
|
|
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