Air Quality
Excellent
No health implications.
16
PM2.5
25
PM10
22
O3
0.7
CO
3
SO2
50
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 Mar
61
Good
Mon
3 Mar
56
Good
Tue
4 Mar
52
Good
Wed
5 Mar
45
Excellent
Thu
6 Mar
46
Excellent
Fri
7 Mar
50
Excellent
Sat
8 Mar
29
Excellent
Air quality in the last 12 months (Tongan)
|
2025/01
|
47
|
51
|
43
|
28
|
32
|
44
|
48
|
49
|
51
|
49
|
26
|
34
|
42
|
39
|
62
|
68
|
49
|
35
|
43
|
33
|
50
|
43
|
45
|
24
|
21
|
22
|
24
|
37
|
106
|
27
|
29
|
|
2024/12
|
36
|
37
|
24
|
28
|
30
|
29
|
27
|
28
|
24
|
20
|
31
|
14
|
18
|
35
|
54
|
45
|
38
|
37
|
37
|
18
|
27
|
53
|
20
|
17
|
26
|
48
|
51
|
55
|
41
|
33
|
51
|
|
2024/11
|
14
|
12
|
25
|
34
|
31
|
25
|
16
|
18
|
25
|
29
|
22
|
16
|
16
|
19
|
27
|
17
|
14
|
11
|
11
|
14
|
14
|
16
|
20
|
15
|
10
|
15
|
21
|
15
|
24
|
34
|
|
|
2024/10
|
11
|
15
|
12
|
15
|
13
|
15
|
14
|
10
|
21
|
38
|
38
|
25
|
23
|
27
|
26
|
20
|
24
|
31
|
31
|
12
|
17
|
17
|
24
|
18
|
11
|
23
|
33
|
19
|
23
|
28
|
7
|
|
2024/09
|
33
|
36
|
29
|
16
|
16
|
11
|
12
|
14
|
9
|
32
|
43
|
40
|
16
|
19
|
13
|
16
|
13
|
15
|
21
|
14
|
17
|
11
|
12
|
11
|
17
|
20
|
18
|
12
|
12
|
7
|
|
|
2024/08
|
29
|
28
|
36
|
35
|
37
|
35
|
31
|
34
|
25
|
27
|
40
|
32
|
32
|
27
|
29
|
20
|
20
|
21
|
22
|
17
|
23
|
30
|
19
|
36
|
37
|
39
|
46
|
35
|
31
|
25
|
25
|
|
2024/07
|
17
|
16
|
12
|
16
|
15
|
10
|
10
|
10
|
11
|
12
|
18
|
15
|
20
|
16
|
13
|
22
|
12
|
13
|
15
|
11
|
16
|
24
|
25
|
11
|
10
|
20
|
17
|
23
|
16
|
16
|
14
|
|
2024/06
|
15
|
14
|
16
|
17
|
18
|
30
|
21
|
30
|
21
|
11
|
14
|
21
|
17
|
18
|
18
|
18
|
12
|
15
|
12
|
16
|
21
|
23
|
18
|
11
|
18
|
15
|
12
|
11
|
13
|
14
|
|
|
2024/05
|
30
|
19
|
32
|
32
|
35
|
37
|
49
|
39
|
41
|
29
|
36
|
34
|
18
|
24
|
36
|
41
|
37
|
44
|
23
|
15
|
14
|
16
|
24
|
31
|
38
|
26
|
14
|
18
|
23
|
22
|
16
|
|
2024/04
|
22
|
46
|
41
|
41
|
33
|
33
|
20
|
46
|
16
|
26
|
34
|
53
|
72
|
51
|
47
|
47
|
38
|
36
|
34
|
45
|
18
|
25
|
21
|
21
|
41
|
25
|
23
|
18
|
26
|
27
|
|
|
2024/03
|
17
|
22
|
36
|
41
|
57
|
42
|
27
|
56
|
54
|
55
|
31
|
34
|
60
|
48
|
42
|
77
|
77
|
38
|
54
|
45
|
41
|
54
|
55
|
38
|
32
|
41
|
35
|
42
|
39
|
49
|
41
|
|
2024/02
|
48
|
35
|
26
|
29
|
32
|
23
|
20
|
22
|
40
|
171
|
52
|
40
|
43
|
49
|
43
|
31
|
41
|
79
|
45
|
28
|
25
|
26
|
21
|
30
|
55
|
35
|
30
|
39
|
71
|
||
|
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