Hainan - China   2025-09-30   Tuesday   20.05N, 110.20E

Haikou

Hainan - China
2025-09-30

Air Quality

Excellent

No health implications.

9

PM2.5

24

PM10

27

O3

0.3

CO

5

SO2

7

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

30 Sep

29 Excellent

Wed

1 Oct

36 Excellent

Thu

2 Oct

35 Excellent

Fri

3 Oct

31 Excellent

Sat

4 Oct

35 Excellent

Sun

5 Oct

55 Good

Mon

6 Oct

18 Excellent

Haikou Air quality rank

Real-time AQI (Monitoring Station in Haikou)

海南大学

25

9

PM2.5

25

PM10

30

O3

0.2

CO

4

SO2

6

NO2

秀英海南医院

21

8

PM2.5

21

PM10

26

O3

0.2

CO

6

SO2

7

NO2

海南师范大学

24

10

PM2.5

24

PM10

29

O3

0.3

CO

4

SO2

7

NO2

桂林洋子站

24

8

PM2.5

24

PM10

22

O3

0.2

CO

5

SO2

5

NO2

Monthly Average AQI (Haikou)

2020/09 - 2025/08

Air quality in the last 12 months (Haikou)

2025/08
26
29
34
33
27
33
30
23
27
21
20
22
23
19
17
16
19
9
17
21
21
16
20
20
19
17
15
16
18
16
13
2025/07
16
13
12
13
18
18
19
24
26
25
20
21
25
27
32
27
22
27
19
12
10
18
23
16
18
18
22
17
20
20
20
2025/06
22
22
29
24
11
16
20
23
21
23
20
17
14
15
20
19
24
19
17
18
17
15
15
15
13
11
12
17
16
17
2025/05
26
22
28
26
22
25
22
16
25
20
27
36
29
18
12
16
16
19
19
20
20
17
17
15
33
41
33
23
16
13
14
2025/04
23
36
31
34
40
31
43
37
37
36
28
34
150
167
148
120
80
52
38
27
29
29
31
30
29
25
17
29
37
34
2025/03
28
25
29
25
22
14
22
25
37
50
43
30
25
21
24
20
37
42
52
51
47
46
38
41
42
36
35
29
21
11
18
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
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