Air Quality
Excellent
No health implications.
11
PM2.5
15
PM10
37
O3
0.4
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Apr
32
Excellent
Sat
27 Apr
41
Excellent
Sun
28 Apr
44
Excellent
Mon
29 Apr
36
Excellent
Tue
30 Apr
34
Excellent
Wed
1 May
34
Excellent
Thu
2 May
34
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)
|
2024/02
|
22
|
23
|
21
|
21
|
21
|
24
|
21
|
17
|
17
|
32
|
32
|
40
|
46
|
52
|
52
|
44
|
29
|
70
|
57
|
54
|
37
|
40
|
45
|
47
|
37
|
45
|
40
|
42
|
38
|
||
|
2024/01
|
43
|
37
|
49
|
42
|
35
|
36
|
37
|
37
|
34
|
40
|
44
|
46
|
38
|
30
|
31
|
35
|
32
|
28
|
26
|
26
|
34
|
33
|
19
|
24
|
33
|
40
|
43
|
36
|
39
|
33
|
24
|
|
2023/12
|
43
|
38
|
42
|
42
|
44
|
34
|
28
|
39
|
35
|
26
|
21
|
32
|
27
|
28
|
44
|
60
|
55
|
57
|
54
|
41
|
38
|
38
|
39
|
43
|
45
|
45
|
37
|
32
|
26
|
30
|
54
|
|
2023/11
|
30
|
24
|
24
|
22
|
22
|
30
|
38
|
24
|
27
|
25
|
24
|
22
|
34
|
31
|
30
|
32
|
40
|
58
|
54
|
49
|
37
|
27
|
34
|
43
|
33
|
38
|
51
|
56
|
35
|
45
|
|
|
2023/10
|
21
|
30
|
26
|
34
|
30
|
29
|
29
|
33
|
27
|
25
|
25
|
29
|
29
|
33
|
42
|
39
|
38
|
27
|
28
|
28
|
27
|
28
|
28
|
25
|
20
|
21
|
19
|
21
|
28
|
34
|
40
|
|
2023/09
|
29
|
30
|
28
|
29
|
29
|
26
|
24
|
20
|
19
|
17
|
17
|
17
|
20
|
21
|
22
|
16
|
16
|
20
|
18
|
16
|
17
|
17
|
19
|
19
|
16
|
18
|
19
|
18
|
19
|
19
|
|
|
2023/08
|
21
|
22
|
15
|
24
|
29
|
38
|
36
|
29
|
26
|
30
|
22
|
21
|
23
|
27
|
26
|
40
|
34
|
29
|
21
|
19
|
18
|
17
|
20
|
19
|
22
|
22
|
22
|
22
|
24
|
25
|
24
|
|
2023/07
|
16
|
16
|
19
|
19
|
20
|
15
|
18
|
16
|
15
|
16
|
14
|
14
|
15
|
18
|
23
|
21
|
24
|
28
|
20
|
32
|
18
|
13
|
13
|
14
|
13
|
31
|
30
|
34
|
26
|
23
|
18
|
|
2023/06
|
27
|
23
|
20
|
18
|
18
|
20
|
20
|
19
|
23
|
22
|
23
|
23
|
25
|
24
|
21
|
20
|
22
|
24
|
20
|
20
|
20
|
21
|
23
|
24
|
22
|
17
|
14
|
17
|
13
|
16
|
|
|
2023/05
|
32
|
34
|
28
|
29
|
22
|
26
|
40
|
37
|
23
|
26
|
22
|
29
|
17
|
19
|
28
|
24
|
25
|
43
|
39
|
25
|
26
|
27
|
46
|
48
|
37
|
23
|
20
|
23
|
28
|
35
|
32
|
|
2023/04
|
25
|
25
|
27
|
52
|
49
|
42
|
48
|
36
|
39
|
40
|
33
|
31
|
54
|
54
|
45
|
36
|
32
|
26
|
29
|
61
|
54
|
46
|
43
|
35
|
35
|
30
|
31
|
28
|
27
|
24
|
|
|
2023/03
|
28
|
41
|
41
|
43
|
46
|
38
|
30
|
25
|
24
|
33
|
50
|
41
|
52
|
38
|
27
|
27
|
26
|
24
|
22
|
23
|
35
|
29
|
24
|
24
|
25
|
21
|
27
|
28
|
32
|
30
|
24
|
|
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