Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 May
Fri
2 May
Sat
3 May
Sun
4 May
Mon
5 May
Tue
6 May
Wed
7 May
Real-time AQI (Monitoring Station in Haikou)
东寨港
5110
PM2.5
52 *
PM10
80
O3
0.7
CO
3
SO2
3
NO2
海南大学
3014
PM2.5
28
PM10
95
O3
0.3
CO
1
SO2
5
NO2
秀英海南医院
2618
PM2.5
24
PM10
77
O3
0.4
CO
4
SO2
24
NO2
龙华路环保局宿舍
2918
PM2.5
22
PM10
92
O3
0.4
CO
4
SO2
9
NO2
桂林洋子站
2913
PM2.5
26
PM10
91
O3
0.3
CO
3
SO2
6
NO2
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
*: primary pollution