Air Quality
Excellent
No health implications.
5
PM2.5
17
PM10
65
O3
0.2
CO
3
SO2
1
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Jan
54
Good
Mon
12 Jan
50
Excellent
Tue
13 Jan
59
Good
Wed
14 Jan
56
Good
Thu
15 Jan
55
Good
Fri
16 Jan
19
Excellent
Sat
17 Jan
49
Excellent
Air quality in the last 12 months (Weichang)
|
2025/11
|
21
|
17
|
34
|
44
|
62
|
63
|
52
|
44
|
13
|
17
|
29
|
53
|
17
|
28
|
51
|
28
|
15
|
21
|
21
|
20
|
21
|
30
|
62
|
47
|
23
|
39
|
22
|
43
|
48
|
30
|
|
|
2025/10
|
21
|
32
|
30
|
22
|
17
|
16
|
29
|
20
|
13
|
15
|
25
|
24
|
33
|
41
|
31
|
23
|
17
|
13
|
12
|
14
|
24
|
24
|
38
|
52
|
37
|
14
|
17
|
44
|
90
|
57
|
35
|
|
2025/09
|
17
|
19
|
33
|
32
|
31
|
14
|
12
|
14
|
23
|
16
|
30
|
36
|
38
|
14
|
10
|
12
|
15
|
13
|
15
|
19
|
20
|
26
|
16
|
15
|
17
|
21
|
21
|
23
|
20
|
17
|
|
|
2025/08
|
27
|
36
|
24
|
21
|
18
|
19
|
14
|
19
|
15
|
17
|
21
|
15
|
15
|
17
|
23
|
17
|
18
|
21
|
21
|
17
|
16
|
13
|
16
|
16
|
16
|
12
|
12
|
13
|
18
|
21
|
20
|
|
2025/07
|
25
|
24
|
21
|
20
|
21
|
17
|
22
|
25
|
28
|
37
|
41
|
35
|
18
|
21
|
22
|
15
|
17
|
18
|
30
|
18
|
16
|
22
|
31
|
22
|
16
|
25
|
13
|
16
|
16
|
18
|
19
|
|
2025/06
|
31
|
28
|
25
|
21
|
23
|
21
|
18
|
25
|
29
|
18
|
28
|
45
|
31
|
39
|
16
|
17
|
26
|
39
|
26
|
19
|
17
|
25
|
31
|
43
|
50
|
48
|
47
|
28
|
35
|
26
|
|
|
2025/05
|
18
|
23
|
22
|
22
|
34
|
23
|
37
|
66
|
25
|
43
|
35
|
34
|
50
|
30
|
32
|
47
|
33
|
14
|
20
|
42
|
53
|
79
|
34
|
31
|
43
|
40
|
22
|
29
|
51
|
53
|
41
|
|
2025/04
|
23
|
17
|
31
|
48
|
16
|
30
|
49
|
28
|
36
|
34
|
60
|
71
|
40
|
28
|
39
|
56
|
47
|
18
|
16
|
37
|
44
|
34
|
53
|
25
|
25
|
48
|
23
|
23
|
48
|
30
|
|
|
2025/03
|
62
|
38
|
42
|
49
|
39
|
22
|
43
|
75
|
80
|
94
|
146
|
41
|
39
|
51
|
37
|
26
|
30
|
20
|
20
|
22
|
31
|
32
|
97
|
42
|
32
|
104
|
30
|
31
|
31
|
27
|
28
|
|
2025/02
|
78
|
65
|
18
|
17
|
23
|
33
|
19
|
13
|
18
|
34
|
64
|
31
|
43
|
37
|
70
|
23
|
21
|
24
|
18
|
20
|
16
|
23
|
15
|
22
|
29
|
31
|
58
|
61
|
|||
|
2025/01
|
39
|
21
|
25
|
34
|
33
|
18
|
19
|
18
|
15
|
21
|
32
|
26
|
25
|
24
|
25
|
43
|
41
|
38
|
31
|
42
|
30
|
35
|
72
|
86
|
107
|
73
|
15
|
22
|
101
|
28
|
60
|
|
2024/12
|
35
|
20
|
25
|
22
|
22
|
24
|
17
|
25
|
28
|
37
|
36
|
47
|
18
|
23
|
25
|
26
|
19
|
21
|
35
|
38
|
19
|
21
|
34
|
51
|
54
|
20
|
22
|
29
|
55
|
52
|
30
|
|
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