Air Quality
Excellent
No health implications.
9
PM2.5
18
PM10
41
O3
0.5
CO
3
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
33
Excellent
Wed
30 Apr
33
Excellent
Thu
1 May
32
Excellent
Fri
2 May
34
Excellent
Sat
3 May
31
Excellent
Sun
4 May
45
Excellent
Mon
5 May
20
Excellent
Air quality in the last 12 months (Ledong)
|
2025/02
|
24
|
21
|
23
|
18
|
21
|
29
|
31
|
20
|
39
|
38
|
25
|
18
|
24
|
13
|
12
|
18
|
26
|
33
|
44
|
34
|
34
|
21
|
13
|
17
|
13
|
21
|
27
|
29
|
|||
|
2025/01
|
56
|
44
|
49
|
45
|
51
|
60
|
45
|
43
|
48
|
60
|
46
|
47
|
36
|
20
|
26
|
52
|
56
|
46
|
45
|
47
|
38
|
37
|
32
|
30
|
24
|
23
|
21
|
33
|
42
|
34
|
26
|
|
2024/12
|
34
|
30
|
26
|
24
|
29
|
33
|
39
|
40
|
28
|
26
|
21
|
30
|
23
|
32
|
50
|
42
|
34
|
41
|
44
|
44
|
44
|
44
|
38
|
45
|
42
|
27
|
35
|
45
|
54
|
39
|
44
|
|
2024/11
|
34
|
39
|
26
|
15
|
33
|
37
|
35
|
41
|
41
|
37
|
27
|
26
|
30
|
29
|
27
|
25
|
27
|
21
|
23
|
10
|
12
|
18
|
19
|
16
|
17
|
22
|
23
|
32
|
35
|
33
|
|
|
2024/10
|
21
|
29
|
32
|
38
|
36
|
33
|
17
|
41
|
52
|
47
|
31
|
28
|
26
|
15
|
12
|
10
|
10
|
12
|
15
|
19
|
20
|
26
|
33
|
28
|
32
|
29
|
18
|
14
|
8
|
13
|
30
|
|
2024/09
|
14
|
12
|
13
|
18
|
24
|
15
|
21
|
21
|
19
|
13
|
12
|
15
|
15
|
14
|
18
|
21
|
17
|
16
|
8
|
10
|
15
|
12
|
9
|
10
|
17
|
19
|
18
|
15
|
16
|
16
|
|
|
2024/08
|
17
|
16
|
16
|
17
|
18
|
16
|
17
|
16
|
17
|
18
|
20
|
19
|
15
|
13
|
15
|
17
|
16
|
19
|
19
|
16
|
19
|
17
|
16
|
15
|
15
|
14
|
14
|
18
|
18
|
18
|
14
|
|
2024/07
|
17
|
17
|
17
|
12
|
10
|
12
|
12
|
13
|
16
|
18
|
15
|
13
|
13
|
11
|
13
|
12
|
9
|
11
|
12
|
11
|
10
|
9
|
17
|
18
|
16
|
19
|
18
|
18
|
14
|
16
|
17
|
|
2024/06
|
14
|
19
|
17
|
22
|
24
|
19
|
21
|
15
|
17
|
17
|
20
|
19
|
19
|
19
|
26
|
24
|
22
|
20
|
21
|
19
|
16
|
10
|
9
|
13
|
16
|
11
|
11
|
13
|
16
|
18
|
|
|
2024/05
|
33
|
22
|
20
|
23
|
27
|
25
|
22
|
21
|
24
|
22
|
23
|
21
|
21
|
14
|
16
|
25
|
24
|
13
|
17
|
17
|
15
|
13
|
14
|
16
|
13
|
18
|
21
|
19
|
24
|
17
|
15
|
|
2024/04
|
31
|
33
|
34
|
35
|
32
|
31
|
33
|
33
|
35
|
28
|
28
|
34
|
33
|
35
|
34
|
30
|
27
|
27
|
30
|
26
|
26
|
25
|
27
|
30
|
25
|
35
|
41
|
35
|
33
|
32
|
|
|
2024/03
|
15
|
12
|
16
|
28
|
40
|
52
|
32
|
14
|
25
|
31
|
30
|
22
|
24
|
29
|
38
|
37
|
30
|
30
|
25
|
25
|
33
|
40
|
34
|
29
|
31
|
35
|
37
|
30
|
32
|
25
|
31
|
|
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