Hainan - China   2025-09-19   Friday   19.26N, 109.05E

Changjiang

Hainan - China
2025-09-19

Air Quality

Excellent

No health implications.

4

PM2.5

11

PM10

27

O3

0.3

CO

5

SO2

3

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

19 Sep

30 Excellent

Sat

20 Sep

38 Excellent

Sun

21 Sep

40 Excellent

Mon

22 Sep

49 Excellent

Tue

23 Sep

49 Excellent

Wed

24 Sep

33 Excellent

Thu

25 Sep

39 Excellent

Monthly Average AQI (Changjiang)

2020/09 - 2025/08

Air quality in the last 12 months (Changjiang)

2025/08
29
29
33
27
27
23
24
24
23
22
18
18
17
18
13
12
12
11
16
20
19
16
14
15
13
16
13
17
13
12
13
2025/07
12
10
10
14
14
13
11
14
19
21
18
16
18
19
18
21
17
18
15
12
14
12
14
11
14
19
13
12
17
15
21
2025/06
17
21
23
29
21
19
20
19
20
22
20
10
13
14
16
18
19
18
18
17
17
13
14
11
10
12
12
11
14
14
2025/05
22
18
23
26
23
25
24
22
22
19
21
34
27
15
17
12
12
17
18
19
19
16
18
18
21
30
25
19
15
19
13
2025/04
21
31
31
31
38
19
26
30
36
38
38
36
100
130
103
87
85
51
32
28
29
27
28
32
35
27
22
24
21
20
2025/03
30
29
30
38
43
21
12
13
25
30
31
25
25
26
30
21
27
35
40
46
43
41
36
41
43
42
49
49
30
13
15
2025/02
27
25
28
24
26
29
34
28
48
41
30
20
25
13
16
23
33
33
44
34
36
24
15
22
17
22
26
32
2025/01
65
48
56
49
57
66
47
49
56
64
49
49
38
24
34
55
59
48
51
53
45
42
34
33
26
25
25
36
48
36
26
2024/12
35
31
26
26
29
36
43
40
33
29
26
39
36
41
54
46
37
47
46
47
49
50
50
54
53
41
54
54
59
43
55
2024/11
40
41
33
19
38
42
44
45
42
41
34
30
35
33
32
25
31
24
27
11
16
22
24
23
17
24
27
36
36
34
2024/10
25
29
36
41
38
38
22
48
54
50
36
29
29
16
14
12
10
12
16
20
23
28
32
29
33
35
17
17
10
20
34
2024/09
16
12
13
18
26
16
15
19
19
12
13
17
17
18
21
25
19
18
9
11
15
13
10
11
20
24
22
17
18
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