Hainan - China   2025-10-22   Wednesday   19.74N, 110.01E

Chengmai

Hainan - China
2025-10-22

Air Quality

Excellent

No health implications.

11

PM2.5

24

PM10

52

O3

0.6

CO

4

SO2

7

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

22 Oct

39 Excellent

Thu

23 Oct

38 Excellent

Fri

24 Oct

60 Good

Sat

25 Oct

66 Good

Sun

26 Oct

65 Good

Mon

27 Oct

62 Good

Tue

28 Oct

22 Excellent

Chengmai Air quality rank

Monthly Average AQI (Chengmai)

2020/09 - 2025/08

Air quality in the last 12 months (Chengmai)

2025/08
28
31
33
30
26
31
28
24
25
23
18
20
19
18
16
12
15
8
15
21
20
15
14
18
14
15
14
16
15
15
14
2025/07
15
14
11
15
16
19
16
22
24
25
21
20
25
27
27
26
21
23
16
13
8
15
18
15
16
17
19
15
20
17
20
2025/06
20
20
27
27
15
16
20
23
20
23
18
13
10
11
16
17
21
17
15
16
17
13
14
14
11
10
13
15
16
16
2025/05
23
21
27
26
21
25
23
18
23
18
24
38
24
14
12
16
14
18
18
18
18
16
18
15
27
37
29
20
16
13
12
2025/04
21
33
30
32
34
20
35
33
39
37
35
36
145
166
133
106
84
51
37
30
25
29
27
31
32
24
18
27
28
26
2025/03
29
27
33
33
32
14
12
15
32
39
33
25
20
23
29
17
33
39
48
49
43
42
37
43
43
41
43
40
18
9
15
2025/02
30
19
30
25
26
35
42
32
53
42
30
19
28
23
18
22
32
45
43
33
36
22
22
27
23
31
35
28
2025/01
66
48
60
50
58
71
46
52
62
65
49
45
42
33
41
56
58
49
51
56
42
52
43
38
28
30
30
32
47
44
41
2024/12
39
34
34
31
35
37
51
39
38
29
33
47
42
43
58
44
38
48
48
51
50
50
54
55
55
45
63
64
59
44
57
2024/11
48
43
33
28
42
47
51
47
51
47
46
42
49
52
40
35
28
28
26
8
16
28
30
29
23
27
34
38
40
44
2024/10
30
31
42
47
39
41
29
54
63
54
38
31
29
19
16
11
11
15
18
26
29
35
30
34
38
45
22
28
17
30
42
2024/09
14
16
16
24
28
18
14
26
22
16
12
19
23
21
26
27
21
21
15
11
15
12
12
14
21
30
27
21
21
22
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