Air Quality
Excellent
No health implications.
12
PM2.5
22
PM10
75
O3
0.7
CO
11
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
56
Good
Mon
5 May
58
Good
Tue
6 May
52
Good
Wed
7 May
55
Good
Thu
8 May
57
Good
Fri
9 May
57
Good
Sat
10 May
19
Excellent
Air quality in the last 12 months (Jiulong)
|
2025/02
|
20
|
15
|
16
|
26
|
29
|
17
|
17
|
18
|
19
|
22
|
18
|
17
|
22
|
25
|
20
|
28
|
23
|
23
|
23
|
23
|
22
|
20
|
18
|
20
|
21
|
19
|
22
|
25
|
|||
|
2025/01
|
39
|
37
|
39
|
46
|
41
|
43
|
29
|
21
|
20
|
21
|
18
|
26
|
28
|
28
|
28
|
36
|
31
|
43
|
57
|
39
|
38
|
38
|
35
|
30
|
14
|
19
|
28
|
22
|
19
|
21
|
18
|
|
2024/12
|
29
|
29
|
30
|
30
|
26
|
31
|
23
|
24
|
22
|
21
|
27
|
33
|
22
|
26
|
33
|
41
|
43
|
34
|
43
|
44
|
31
|
24
|
34
|
31
|
28
|
33
|
37
|
30
|
37
|
29
|
38
|
|
2024/11
|
20
|
19
|
24
|
18
|
16
|
24
|
20
|
25
|
23
|
24
|
21
|
24
|
23
|
26
|
28
|
27
|
21
|
23
|
22
|
24
|
26
|
21
|
17
|
16
|
20
|
21
|
21
|
23
|
25
|
30
|
|
|
2024/10
|
9
|
11
|
14
|
17
|
13
|
10
|
9
|
13
|
14
|
11
|
16
|
17
|
15
|
20
|
17
|
16
|
15
|
20
|
19
|
20
|
18
|
21
|
23
|
24
|
22
|
14
|
10
|
24
|
29
|
24
|
25
|
|
2024/09
|
15
|
16
|
14
|
14
|
13
|
18
|
18
|
18
|
15
|
13
|
16
|
17
|
21
|
20
|
19
|
11
|
14
|
17
|
23
|
24
|
19
|
19
|
20
|
17
|
14
|
18
|
20
|
22
|
19
|
13
|
|
|
2024/08
|
23
|
26
|
25
|
20
|
19
|
23
|
26
|
24
|
23
|
18
|
39
|
23
|
23
|
32
|
30
|
17
|
19
|
19
|
21
|
20
|
23
|
28
|
33
|
33
|
37
|
33
|
33
|
33
|
32
|
32
|
22
|
|
2024/07
|
20
|
19
|
17
|
13
|
15
|
18
|
21
|
16
|
15
|
18
|
13
|
23
|
21
|
14
|
16
|
13
|
18
|
16
|
18
|
16
|
12
|
16
|
19
|
16
|
15
|
19
|
22
|
17
|
13
|
15
|
18
|
|
2024/06
|
32
|
23
|
19
|
15
|
20
|
21
|
14
|
14
|
13
|
16
|
16
|
21
|
21
|
21
|
22
|
21
|
13
|
13
|
12
|
13
|
21
|
14
|
19
|
13
|
21
|
22
|
15
|
14
|
16
|
17
|
|
|
2024/05
|
15
|
21
|
24
|
20
|
26
|
28
|
32
|
19
|
21
|
21
|
14
|
13
|
21
|
25
|
18
|
24
|
17
|
19
|
28
|
26
|
24
|
24
|
27
|
29
|
31
|
25
|
18
|
18
|
16
|
12
|
24
|
|
2024/04
|
16
|
25
|
25
|
22
|
22
|
21
|
22
|
20
|
23
|
27
|
24
|
28
|
29
|
35
|
36
|
40
|
32
|
26
|
37
|
20
|
18
|
25
|
17
|
18
|
22
|
26
|
28
|
36
|
22
|
21
|
|
|
2024/03
|
19
|
28
|
31
|
28
|
24
|
24
|
21
|
24
|
30
|
28
|
25
|
33
|
28
|
21
|
30
|
27
|
33
|
27
|
43
|
55
|
36
|
28
|
26
|
26
|
26
|
23
|
21
|
17
|
24
|
25
|
25
|
|
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