Air Quality
Excellent
No health implications.
14
PM2.5
18
PM10
112
O3
0.6
CO
2
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Aug
58
Good
Tue
18 Aug
58
Good
Wed
19 Aug
51
Good
Thu
20 Aug
44
Excellent
Fri
21 Aug
37
Excellent
Sat
22 Aug
38
Excellent
Sun
23 Aug
49
Excellent
Air quality in the last 12 months (Tongan)
|
2026/07
|
13
|
14
|
16
|
13
|
16
|
13
|
16
|
20
|
30
|
33
|
21
|
27
|
15
|
16
|
21
|
22
|
19
|
20
|
21
|
21
|
30
|
35
|
40
|
41
|
15
|
13
|
13
|
12
|
22
|
29
|
35
|
|
2026/06
|
59
|
54
|
40
|
33
|
29
|
39
|
32
|
22
|
26
|
30
|
29
|
32
|
35
|
21
|
14
|
19
|
16
|
14
|
17
|
21
|
32
|
39
|
46
|
54
|
24
|
23
|
19
|
20
|
15
|
16
|
|
|
2026/05
|
31
|
40
|
33
|
27
|
31
|
36
|
53
|
48
|
32
|
33
|
47
|
64
|
45
|
18
|
20
|
28
|
29
|
32
|
35
|
27
|
22
|
26
|
29
|
35
|
29
|
34
|
37
|
43
|
40
|
46
|
50
|
|
2026/04
|
34
|
31
|
28
|
26
|
30
|
29
|
28
|
29
|
34
|
30
|
28
|
27
|
28
|
29
|
45
|
29
|
50
|
49
|
44
|
48
|
38
|
31
|
37
|
22
|
32
|
44
|
52
|
44
|
31
|
24
|
|
|
2026/03
|
19
|
32
|
19
|
24
|
23
|
33
|
36
|
45
|
46
|
35
|
43
|
43
|
42
|
40
|
37
|
29
|
35
|
37
|
32
|
40
|
45
|
52
|
49
|
39
|
49
|
42
|
49
|
33
|
44
|
44
|
36
|
|
2026/02
|
16
|
29
|
36
|
33
|
44
|
42
|
22
|
26
|
22
|
29
|
34
|
36
|
37
|
33
|
25
|
47
|
49
|
32
|
34
|
40
|
39
|
50
|
35
|
66
|
37
|
35
|
32
|
10
|
|||
|
2026/01
|
17
|
22
|
29
|
33
|
37
|
24
|
34
|
38
|
39
|
47
|
43
|
48
|
51
|
46
|
49
|
45
|
47
|
54
|
41
|
22
|
23
|
29
|
21
|
24
|
24
|
37
|
33
|
25
|
26
|
29
|
31
|
|
2025/12
|
42
|
34
|
39
|
32
|
28
|
31
|
34
|
36
|
35
|
32
|
40
|
40
|
29
|
23
|
31
|
35
|
39
|
42
|
39
|
48
|
53
|
26
|
29
|
37
|
27
|
23
|
23
|
27
|
34
|
32
|
35
|
|
2025/11
|
21
|
33
|
28
|
12
|
11
|
15
|
21
|
25
|
27
|
12
|
12
|
10
|
9
|
25
|
39
|
33
|
27
|
28
|
20
|
29
|
31
|
40
|
37
|
44
|
36
|
61
|
46
|
59
|
60
|
50
|
|
|
2025/10
|
37
|
19
|
26
|
27
|
21
|
22
|
26
|
22
|
22
|
21
|
23
|
27
|
26
|
28
|
18
|
25
|
26
|
20
|
12
|
10
|
14
|
14
|
15
|
14
|
17
|
33
|
36
|
21
|
14
|
23
|
25
|
|
2025/09
|
20
|
27
|
33
|
27
|
28
|
15
|
12
|
7
|
17
|
21
|
18
|
24
|
25
|
26
|
23
|
23
|
16
|
12
|
9
|
8
|
10
|
8
|
12
|
8
|
17
|
10
|
14
|
15
|
27
|
32
|
|
|
2025/08
|
21
|
25
|
12
|
11
|
15
|
19
|
25
|
35
|
19
|
11
|
9
|
19
|
18
|
11
|
10
|
12
|
12
|
13
|
14
|
18
|
16
|
24
|
28
|
19
|
20
|
18
|
10
|
17
|
16
|
15
|
16
|
|
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