Air Quality
Excellent
No health implications.
13
PM2.5
39
PM10
89
O3
0.5
CO
5
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
51
Good
Mon
18 May
57
Good
Tue
19 May
56
Good
Wed
20 May
56
Good
Thu
21 May
52
Good
Fri
22 May
54
Good
Sat
23 May
40
Excellent
Air quality in the last 12 months (Nan'ao)
|
2026/04
|
28
|
31
|
38
|
43
|
28
|
32
|
38
|
37
|
41
|
31
|
30
|
30
|
26
|
27
|
32
|
35
|
35
|
42
|
38
|
39
|
34
|
32
|
28
|
18
|
29
|
40
|
44
|
40
|
30
|
23
|
|
|
2026/03
|
18
|
46
|
29
|
31
|
33
|
29
|
48
|
38
|
39
|
37
|
45
|
48
|
43
|
42
|
43
|
36
|
36
|
42
|
42
|
34
|
37
|
37
|
40
|
36
|
47
|
34
|
36
|
31
|
35
|
44
|
37
|
|
2026/02
|
30
|
33
|
44
|
48
|
54
|
49
|
33
|
41
|
38
|
37
|
43
|
45
|
45
|
46
|
37
|
36
|
36
|
40
|
40
|
53
|
54
|
59
|
61
|
73
|
45
|
25
|
41
|
11
|
|||
|
2026/01
|
29
|
26
|
36
|
44
|
48
|
30
|
40
|
45
|
47
|
50
|
54
|
56
|
60
|
45
|
54
|
57
|
60
|
51
|
51
|
33
|
36
|
43
|
43
|
39
|
34
|
49
|
50
|
30
|
37
|
40
|
26
|
|
2025/12
|
32
|
40
|
43
|
46
|
37
|
35
|
41
|
43
|
45
|
38
|
44
|
46
|
41
|
31
|
41
|
48
|
53
|
48
|
57
|
48
|
75
|
37
|
35
|
41
|
28
|
28
|
31
|
37
|
38
|
50
|
38
|
|
2025/11
|
26
|
38
|
42
|
22
|
21
|
26
|
30
|
34
|
41
|
27
|
24
|
16
|
17
|
29
|
39
|
38
|
38
|
35
|
22
|
36
|
38
|
46
|
48
|
51
|
41
|
63
|
51
|
65
|
73
|
50
|
|
|
2025/10
|
23
|
22
|
27
|
32
|
22
|
21
|
31
|
29
|
31
|
27
|
28
|
22
|
20
|
24
|
23
|
31
|
35
|
34
|
28
|
22
|
16
|
16
|
24
|
31
|
31
|
43
|
43
|
43
|
24
|
33
|
40
|
|
2025/09
|
30
|
34
|
32
|
26
|
20
|
24
|
17
|
18
|
19
|
22
|
21
|
22
|
21
|
21
|
20
|
25
|
22
|
20
|
16
|
16
|
18
|
23
|
22
|
26
|
25
|
25
|
25
|
25
|
27
|
34
|
|
|
2025/08
|
28
|
25
|
22
|
12
|
13
|
29
|
36
|
38
|
22
|
13
|
15
|
24
|
31
|
15
|
23
|
25
|
21
|
17
|
16
|
28
|
27
|
32
|
23
|
21
|
27
|
23
|
20
|
23
|
25
|
19
|
27
|
|
2025/07
|
17
|
20
|
23
|
28
|
14
|
19
|
40
|
39
|
31
|
14
|
12
|
36
|
41
|
36
|
32
|
35
|
37
|
26
|
25
|
26
|
24
|
16
|
22
|
32
|
26
|
31
|
37
|
27
|
24
|
35
|
28
|
|
2025/06
|
41
|
38
|
23
|
20
|
32
|
28
|
34
|
26
|
20
|
21
|
23
|
26
|
21
|
36
|
34
|
22
|
18
|
23
|
16
|
17
|
15
|
17
|
20
|
18
|
20
|
15
|
13
|
15
|
12
|
15
|
|
|
2025/05
|
52
|
60
|
48
|
38
|
39
|
32
|
36
|
48
|
39
|
27
|
25
|
39
|
37
|
40
|
33
|
20
|
20
|
26
|
26
|
23
|
22
|
30
|
29
|
24
|
28
|
37
|
33
|
30
|
12
|
24
|
36
|
|
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