Air Quality
Excellent
No health implications.
4
PM2.5
14
PM10
101
O3
0.6
CO
4
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Sep
56
Good
Sun
6 Sep
65
Good
Mon
7 Sep
62
Good
Tue
8 Sep
67
Good
Wed
9 Sep
66
Good
Thu
10 Sep
68
Good
Fri
11 Sep
43
Excellent
Real-time AQI (Monitoring Station in Xisha)
永兴岛子站
144
PM2.5
8
PM10
43
O3
0.3
CO
1
SO2
12
NO2
Air quality in the last 12 months (Xisha)
|
2026/08
|
17
|
22
|
24
|
19
|
15
|
17
|
17
|
22
|
25
|
30
|
37
|
30
|
23
|
26
|
24
|
24
|
26
|
28
|
23
|
20
|
18
|
19
|
20
|
23
|
21
|
27
|
29
|
26
|
27
|
22
|
21
|
|
2026/07
|
22
|
20
|
19
|
23
|
27
|
20
|
18
|
21
|
27
|
20
|
29
|
21
|
19
|
21
|
24
|
27
|
25
|
29
|
39
|
39
|
44
|
39
|
34
|
34
|
23
|
25
|
25
|
19
|
20
|
19
|
16
|
|
2026/06
|
21
|
24
|
23
|
21
|
26
|
26
|
20
|
27
|
27
|
26
|
29
|
25
|
23
|
26
|
29
|
25
|
21
|
27
|
31
|
24
|
20
|
20
|
26
|
30
|
29
|
29
|
27
|
24
|
24
|
21
|
|
|
2026/05
|
37
|
34
|
27
|
28
|
26
|
23
|
22
|
24
|
24
|
25
|
25
|
22
|
20
|
26
|
26
|
26
|
24
|
24
|
29
|
26
|
36
|
42
|
20
|
21
|
22
|
27
|
28
|
22
|
23
|
25
|
23
|
|
2026/04
|
38
|
32
|
32
|
36
|
38
|
34
|
36
|
41
|
30
|
23
|
24
|
26
|
22
|
21
|
17
|
19
|
23
|
29
|
29
|
25
|
28
|
34
|
37
|
23
|
27
|
31
|
23
|
25
|
33
|
31
|
|
|
2026/03
|
21
|
22
|
27
|
25
|
35
|
38
|
43
|
41
|
39
|
41
|
36
|
38
|
64
|
58
|
59
|
46
|
34
|
28
|
22
|
25
|
25
|
25
|
26
|
23
|
23
|
22
|
39
|
30
|
28
|
22
|
32
|
|
2026/02
|
23
|
29
|
35
|
35
|
23
|
20
|
29
|
39
|
52
|
38
|
35
|
39
|
37
|
33
|
31
|
35
|
47
|
43
|
44
|
46
|
39
|
31
|
38
|
49
|
37
|
47
|
42
|
29
|
|||
|
2026/01
|
31
|
42
|
36
|
36
|
47
|
49
|
47
|
43
|
43
|
47
|
48
|
49
|
49
|
39
|
31
|
25
|
26
|
33
|
35
|
42
|
58
|
55
|
45
|
51
|
26
|
22
|
39
|
41
|
34
|
38
|
27
|
|
2025/12
|
24
|
24
|
25
|
39
|
38
|
39
|
38
|
50
|
44
|
31
|
37
|
37
|
46
|
28
|
36
|
37
|
50
|
45
|
33
|
28
|
33
|
36
|
27
|
30
|
26
|
25
|
36
|
38
|
35
|
35
|
38
|
|
2025/11
|
34
|
38
|
34
|
28
|
26
|
21
|
25
|
23
|
35
|
32
|
34
|
28
|
30
|
33
|
35
|
36
|
37
|
47
|
28
|
41
|
43
|
44
|
47
|
44
|
46
|
54
|
47
|
57
|
55
|
36
|
|
|
2025/10
|
16
|
13
|
14
|
22
|
26
|
19
|
23
|
19
|
23
|
21
|
23
|
15
|
13
|
19
|
19
|
23
|
31
|
33
|
38
|
33
|
20
|
18
|
20
|
27
|
32
|
38
|
31
|
25
|
22
|
26
|
35
|
|
2025/09
|
15
|
23
|
27
|
17
|
21
|
26
|
31
|
27
|
24
|
19
|
12
|
13
|
20
|
11
|
21
|
22
|
20
|
26
|
33
|
27
|
23
|
28
|
32
|
20
|
28
|
17
|
20
|
26
|
32
|
20
|
|
|
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