Air Quality
Excellent
No health implications.
17
PM2.5
36
PM10
98
O3
0.6
CO
6
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Nov
48
Excellent
Wed
11 Nov
52
Good
Thu
12 Nov
50
Excellent
Fri
13 Nov
48
Excellent
Sat
14 Nov
36
Excellent
Sun
15 Nov
38
Excellent
Mon
16 Nov
47
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)
|
2026/09
|
22
|
28
|
27
|
31
|
32
|
28
|
25
|
25
|
22
|
34
|
32
|
32
|
22
|
24
|
21
|
28
|
28
|
25
|
21
|
23
|
24
|
27
|
26
|
23
|
20
|
21
|
23
|
23
|
21
|
22
|
|
|
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
|
|
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