Hainan - China   2025-04-21   Monday   20.05N, 110.20E

Haikou

Hainan - China
2025-04-21

Air Quality

Excellent

No health implications.

16

PM2.5

29

PM10

25

O3

0.3

CO

4

SO2

8

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

21 Apr

49 Excellent

Tue

22 Apr

47 Excellent

Wed

23 Apr

45 Excellent

Thu

24 Apr

42 Excellent

Fri

25 Apr

31 Excellent

Sat

26 Apr

36 Excellent

Sun

27 Apr

35 Excellent

Real-time AQI (Monitoring Station in Haikou)

海南大学

33

16

PM2.5

33

PM10

25

O3

0.4

CO

2

SO2

7

NO2

秀英海南医院

30

16

PM2.5

30

PM10

20

O3

0.2

CO

4

SO2

15

NO2

海南师范大学

28

16

PM2.5

28

PM10

24

O3

0.4

CO

4

SO2

8

NO2

龙华路环保局宿舍

25

16

PM2.5

25

PM10

26

O3

0.2

CO

4

SO2

4

NO2

桂林洋子站

25

15

PM2.5

25

PM10

28

O3

0.2

CO

4

SO2

6

NO2

Monthly Average AQI (Haikou)

2020/03 - 2025/02

Air quality in the last 12 months (Haikou)

2025/02
32
18
33
23
28
38
42
34
54
43
36
27
34
25
20
21
33
50
44
37
37
27
33
28
32
45
39
28
2025/01
65
51
64
53
61
76
48
54
67
61
44
41
44
45
43
57
59
50
51
63
43
56
50
40
32
32
34
34
50
49
49
2024/12
40
34
34
32
38
42
55
38
39
32
36
46
42
41
56
42
42
46
48
51
48
46
54
57
51
49
66
68
59
48
58
2024/11
50
43
36
37
43
49
54
47
52
51
46
46
52
53
41
41
23
31
27
10
17
28
33
32
30
27
36
40
39
46
2024/10
29
30
43
46
37
40
39
54
63
53
39
34
31
23
18
15
15
18
20
28
33
40
28
35
41
47
28
30
26
35
44
2024/09
12
16
17
26
27
23
19
31
26
21
13
20
23
20
29
30
24
25
21
15
17
14
17
17
21
31
26
22
19
19
2024/08
23
23
22
22
22
23
25
27
25
30
28
26
21
22
24
22
16
18
25
22
21
22
20
23
18
23
19
21
27
21
17
2024/07
20
21
18
15
11
12
12
14
15
17
19
17
15
17
16
16
13
14
16
17
14
13
15
19
17
17
25
26
19
17
20
2024/06
16
21
18
19
23
19
16
22
21
19
19
21
23
25
25
30
25
25
26
24
21
14
13
13
16
15
14
16
16
21
2024/05
30
19
21
22
27
33
26
23
32
35
31
29
22
29
33
32
40
19
15
20
18
15
14
20
18
19
23
23
25
28
18
2024/04
38
31
30
31
26
36
36
36
34
30
42
35
37
35
38
33
27
35
32
32
29
26
30
37
28
39
47
40
35
38
2024/03
16
17
28
25
38
46
42
34
38
35
24
22
29
44
52
38
28
30
29
43
51
46
33
33
42
34
40
36
32
27
34
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