Air Quality
Excellent
No health implications.
20
PM2.5
25
PM10
73
O3
0.7
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Dec
53
Good
Mon
15 Dec
49
Excellent
Tue
16 Dec
54
Good
Wed
17 Dec
61
Good
Thu
18 Dec
58
Good
Fri
19 Dec
17
Excellent
Sat
20 Dec
23
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)
|
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