Air Quality
Excellent
No health implications.
10
PM2.5
20
PM10
50
O3
0.5
CO
5
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
38
Excellent
Tue
28 Apr
40
Excellent
Wed
29 Apr
43
Excellent
Thu
30 Apr
54
Good
Fri
1 May
45
Excellent
Sat
2 May
44
Excellent
Sun
3 May
47
Excellent
Air quality in the last 12 months (Xuwen)
|
2026/03
|
17
|
26
|
18
|
14
|
25
|
30
|
32
|
43
|
34
|
21
|
35
|
40
|
42
|
43
|
39
|
34
|
30
|
27
|
23
|
21
|
22
|
25
|
32
|
26
|
24
|
24
|
26
|
33
|
30
|
25
|
34
|
|
2026/02
|
30
|
34
|
28
|
33
|
27
|
18
|
26
|
38
|
35
|
35
|
31
|
28
|
37
|
29
|
23
|
25
|
54
|
44
|
33
|
37
|
30
|
25
|
26
|
33
|
44
|
31
|
34
|
13
|
|||
|
2026/01
|
31
|
41
|
29
|
36
|
48
|
49
|
43
|
38
|
38
|
42
|
39
|
43
|
57
|
54
|
40
|
34
|
39
|
44
|
34
|
38
|
54
|
45
|
43
|
54
|
25
|
25
|
38
|
58
|
29
|
27
|
30
|
|
2025/12
|
55
|
31
|
37
|
60
|
53
|
64
|
47
|
64
|
52
|
54
|
61
|
42
|
40
|
29
|
52
|
43
|
50
|
46
|
44
|
37
|
40
|
40
|
35
|
34
|
31
|
34
|
42
|
45
|
48
|
46
|
51
|
|
2025/11
|
37
|
45
|
46
|
20
|
18
|
28
|
16
|
18
|
35
|
34
|
31
|
27
|
49
|
29
|
40
|
44
|
44
|
50
|
25
|
31
|
35
|
41
|
50
|
54
|
44
|
52
|
50
|
54
|
60
|
47
|
|
|
2025/10
|
13
|
14
|
15
|
16
|
23
|
18
|
14
|
16
|
23
|
27
|
23
|
14
|
11
|
12
|
18
|
21
|
25
|
32
|
37
|
29
|
23
|
21
|
23
|
31
|
41
|
42
|
42
|
41
|
44
|
32
|
46
|
|
2025/09
|
12
|
13
|
11
|
12
|
11
|
10
|
20
|
19
|
19
|
16
|
16
|
12
|
11
|
14
|
13
|
12
|
14
|
16
|
19
|
23
|
21
|
10
|
25
|
24
|
15
|
18
|
26
|
18
|
17
|
18
|
|
|
2025/08
|
26
|
31
|
37
|
35
|
27
|
27
|
28
|
25
|
26
|
20
|
19
|
20
|
24
|
18
|
15
|
15
|
18
|
9
|
17
|
21
|
20
|
14
|
14
|
18
|
18
|
16
|
15
|
18
|
17
|
13
|
11
|
|
2025/07
|
13
|
12
|
11
|
16
|
17
|
21
|
19
|
21
|
21
|
22
|
20
|
20
|
22
|
24
|
26
|
27
|
23
|
23
|
18
|
15
|
10
|
17
|
23
|
17
|
19
|
14
|
20
|
14
|
20
|
17
|
21
|
|
2025/06
|
21
|
22
|
29
|
24
|
11
|
14
|
18
|
22
|
21
|
20
|
21
|
18
|
14
|
15
|
19
|
19
|
24
|
21
|
17
|
19
|
18
|
15
|
16
|
15
|
12
|
12
|
11
|
15
|
14
|
14
|
|
|
2025/05
|
26
|
21
|
27
|
27
|
21
|
28
|
24
|
17
|
22
|
21
|
29
|
37
|
30
|
19
|
12
|
12
|
12
|
18
|
17
|
20
|
18
|
17
|
15
|
15
|
33
|
43
|
38
|
23
|
15
|
14
|
14
|
|
2025/04
|
28
|
40
|
30
|
34
|
40
|
35
|
46
|
40
|
40
|
36
|
28
|
40
|
156
|
172
|
149
|
120
|
87
|
57
|
39
|
28
|
28
|
33
|
29
|
33
|
34
|
24
|
17
|
29
|
31
|
32
|
|
|
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