Air Quality
Excellent
No health implications.
18
PM2.5
40
PM10
86
O3
0.5
CO
2
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Dec
68
Good
Mon
8 Dec
62
Good
Tue
9 Dec
61
Good
Wed
10 Dec
65
Good
Thu
11 Dec
68
Good
Fri
12 Dec
64
Good
Sat
13 Dec
46
Excellent
Xisha Air quality rank
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)
|
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
|
|
|
2025/08
|
34
|
36
|
41
|
27
|
28
|
43
|
38
|
27
|
19
|
14
|
18
|
22
|
20
|
21
|
13
|
11
|
14
|
10
|
14
|
22
|
21
|
13
|
26
|
26
|
26
|
17
|
16
|
17
|
15
|
31
|
21
|
|
2025/07
|
16
|
16
|
12
|
16
|
19
|
18
|
25
|
29
|
21
|
21
|
24
|
26
|
29
|
26
|
29
|
21
|
18
|
19
|
23
|
22
|
24
|
23
|
21
|
19
|
21
|
27
|
17
|
16
|
21
|
24
|
28
|
|
2025/06
|
25
|
22
|
26
|
17
|
16
|
13
|
16
|
18
|
18
|
24
|
17
|
17
|
30
|
24
|
24
|
23
|
19
|
15
|
17
|
15
|
13
|
12
|
10
|
16
|
9
|
11
|
11
|
14
|
18
|
17
|
|
|
2025/05
|
25
|
25
|
25
|
28
|
20
|
15
|
33
|
28
|
49
|
25
|
20
|
26
|
23
|
16
|
13
|
16
|
14
|
15
|
13
|
14
|
15
|
17
|
15
|
12
|
24
|
24
|
12
|
14
|
13
|
17
|
22
|
|
2025/04
|
25
|
30
|
35
|
39
|
31
|
25
|
30
|
32
|
25
|
22
|
18
|
16
|
80
|
122
|
113
|
94
|
69
|
27
|
43
|
19
|
27
|
26
|
27
|
16
|
16
|
21
|
19
|
27
|
29
|
30
|
|
|
2025/03
|
28
|
17
|
13
|
16
|
16
|
12
|
30
|
25
|
31
|
31
|
31
|
28
|
24
|
25
|
32
|
26
|
36
|
37
|
41
|
47
|
47
|
38
|
32
|
29
|
28
|
28
|
62
|
32
|
47
|
33
|
30
|
|
2025/02
|
27
|
19
|
23
|
20
|
35
|
35
|
37
|
26
|
46
|
37
|
28
|
19
|
33
|
25
|
17
|
23
|
36
|
55
|
46
|
39
|
36
|
32
|
26
|
23
|
32
|
39
|
31
|
30
|
|||
|
2025/01
|
40
|
39
|
42
|
35
|
46
|
56
|
37
|
40
|
44
|
56
|
41
|
41
|
34
|
18
|
34
|
55
|
55
|
47
|
42
|
42
|
31
|
37
|
32
|
31
|
26
|
24
|
22
|
35
|
45
|
39
|
37
|
|
2024/12
|
31
|
25
|
24
|
20
|
25
|
31
|
44
|
43
|
25
|
22
|
22
|
30
|
22
|
31
|
51
|
41
|
36
|
39
|
43
|
40
|
44
|
44
|
34
|
36
|
26
|
18
|
28
|
49
|
49
|
40
|
43
|
|
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