Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
26 Apr
Sat
27 Apr
Sun
28 Apr
Mon
29 Apr
Tue
30 Apr
Wed
1 May
Thu
2 May
Real-time AQI (Monitoring Station in Haikou)
海南大学
4330
PM2.5
38
PM10
118
O3
0.5
CO
5
SO2
10
NO2
秀英海南医院
5026
PM2.5
50
PM10
105
O3
0.5
CO
7
SO2
32
NO2
海南师范大学
8231
PM2.5
114 *
PM10
112
O3
0.5
CO
7
SO2
16
NO2
龙华路环保局宿舍
4928
PM2.5
49
PM10
119
O3
0.4
CO
7
SO2
11
NO2
桂林洋子站
4527
PM2.5
45
PM10
112
O3
0.4
CO
6
SO2
9
NO2
Air quality in the last 12 months (Haikou)
|
2024/02
|
21
|
20
|
22
|
21
|
19
|
21
|
29
|
12
|
19
|
58
|
54
|
48
|
41
|
33
|
34
|
37
|
32
|
20
|
22
|
36
|
29
|
30
|
34
|
35
|
29
|
33
|
31
|
35
|
29
|
||
|
2024/01
|
52
|
46
|
42
|
39
|
39
|
37
|
38
|
44
|
44
|
43
|
35
|
41
|
37
|
35
|
32
|
42
|
37
|
33
|
28
|
26
|
31
|
29
|
15
|
31
|
39
|
52
|
47
|
24
|
33
|
34
|
25
|
|
2023/12
|
46
|
49
|
48
|
49
|
71
|
45
|
31
|
38
|
37
|
23
|
19
|
23
|
37
|
26
|
28
|
24
|
18
|
28
|
31
|
29
|
34
|
39
|
50
|
44
|
45
|
46
|
53
|
46
|
33
|
39
|
73
|
|
2023/11
|
37
|
29
|
27
|
25
|
22
|
22
|
42
|
16
|
19
|
24
|
15
|
22
|
31
|
34
|
39
|
33
|
38
|
52
|
59
|
63
|
47
|
31
|
37
|
63
|
52
|
44
|
62
|
70
|
37
|
50
|
|
|
2023/10
|
24
|
29
|
24
|
28
|
31
|
37
|
38
|
37
|
26
|
17
|
19
|
35
|
37
|
38
|
58
|
48
|
43
|
25
|
20
|
16
|
23
|
36
|
38
|
35
|
30
|
25
|
15
|
17
|
31
|
38
|
47
|
|
2023/09
|
41
|
34
|
24
|
25
|
33
|
28
|
25
|
21
|
17
|
19
|
19
|
18
|
20
|
17
|
20
|
14
|
13
|
15
|
17
|
17
|
16
|
18
|
16
|
19
|
14
|
12
|
15
|
24
|
20
|
19
|
|
|
2023/08
|
19
|
19
|
14
|
18
|
24
|
28
|
27
|
23
|
25
|
30
|
25
|
17
|
26
|
27
|
22
|
28
|
28
|
29
|
28
|
19
|
18
|
19
|
21
|
22
|
23
|
26
|
27
|
24
|
22
|
26
|
33
|
|
2023/07
|
22
|
19
|
18
|
19
|
20
|
26
|
14
|
16
|
15
|
21
|
19
|
20
|
17
|
18
|
23
|
24
|
26
|
25
|
20
|
20
|
16
|
16
|
15
|
16
|
18
|
18
|
20
|
27
|
32
|
23
|
19
|
|
2023/06
|
36
|
27
|
26
|
20
|
17
|
19
|
18
|
18
|
21
|
22
|
21
|
27
|
27
|
23
|
27
|
21
|
25
|
21
|
23
|
24
|
23
|
23
|
22
|
23
|
24
|
20
|
16
|
18
|
19
|
20
|
|
|
2023/05
|
34
|
30
|
25
|
26
|
27
|
34
|
36
|
23
|
25
|
29
|
17
|
17
|
21
|
25
|
28
|
23
|
38
|
49
|
49
|
37
|
38
|
37
|
49
|
33
|
26
|
25
|
16
|
29
|
27
|
32
|
29
|
|
2023/04
|
27
|
28
|
24
|
28
|
27
|
35
|
35
|
29
|
52
|
36
|
38
|
38
|
39
|
35
|
31
|
49
|
43
|
35
|
37
|
46
|
50
|
35
|
29
|
18
|
31
|
26
|
27
|
25
|
27
|
29
|
|
|
2023/03
|
33
|
53
|
54
|
54
|
55
|
46
|
42
|
36
|
37
|
43
|
42
|
34
|
65
|
52
|
36
|
30
|
35
|
32
|
28
|
24
|
35
|
46
|
45
|
31
|
27
|
23
|
21
|
26
|
28
|
31
|
29
|
|
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