Air Quality
Excellent
No health implications.
18
PM2.5
35
PM10
34
O3
0.4
CO
3
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Jan
65
Good
Sat
18 Jan
52
Good
Sun
19 Jan
52
Good
Mon
20 Jan
61
Good
Tue
21 Jan
47
Excellent
Wed
22 Jan
45
Excellent
Thu
23 Jan
22
Excellent
Air quality in the last 12 months (Weichang)
|
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
|
|
2024/11
|
70
|
60
|
34
|
20
|
25
|
29
|
57
|
101
|
96
|
59
|
43
|
47
|
53
|
53
|
46
|
32
|
23
|
31
|
48
|
43
|
20
|
25
|
43
|
72
|
47
|
21
|
27
|
18
|
19
|
22
|
|
|
2024/10
|
16
|
14
|
17
|
33
|
56
|
34
|
18
|
28
|
40
|
22
|
29
|
55
|
87
|
60
|
24
|
42
|
51
|
32
|
18
|
27
|
39
|
19
|
32
|
32
|
53
|
70
|
25
|
28
|
34
|
23
|
62
|
|
2024/09
|
17
|
17
|
21
|
27
|
19
|
21
|
18
|
23
|
23
|
16
|
24
|
26
|
21
|
15
|
18
|
19
|
20
|
20
|
35
|
15
|
16
|
16
|
19
|
31
|
28
|
21
|
36
|
45
|
46
|
11
|
|
|
2024/08
|
16
|
23
|
22
|
18
|
21
|
26
|
33
|
31
|
36
|
37
|
22
|
14
|
17
|
22
|
20
|
22
|
30
|
20
|
20
|
10
|
13
|
20
|
19
|
23
|
21
|
20
|
26
|
33
|
28
|
27
|
26
|
|
2024/07
|
24
|
27
|
21
|
24
|
27
|
32
|
23
|
44
|
59
|
46
|
47
|
34
|
34
|
40
|
40
|
30
|
13
|
15
|
22
|
22
|
30
|
20
|
30
|
37
|
15
|
16
|
21
|
21
|
21
|
18
|
13
|
|
2024/06
|
19
|
18
|
26
|
37
|
41
|
42
|
30
|
22
|
22
|
38
|
22
|
29
|
29
|
17
|
15
|
25
|
31
|
43
|
61
|
48
|
87
|
221
|
94
|
13
|
19
|
29
|
49
|
46
|
46
|
26
|
|
|
2024/05
|
33
|
38
|
44
|
56
|
64
|
44
|
37
|
48
|
62
|
136
|
96
|
20
|
34
|
31
|
20
|
30
|
51
|
51
|
42
|
19
|
36
|
48
|
52
|
26
|
23
|
23
|
24
|
24
|
67
|
31
|
13
|
|
2024/04
|
45
|
54
|
27
|
39
|
51
|
39
|
37
|
34
|
55
|
44
|
44
|
87
|
64
|
104
|
139
|
29
|
45
|
48
|
30
|
17
|
53
|
52
|
17
|
46
|
73
|
61
|
41
|
14
|
12
|
16
|
|
|
2024/03
|
20
|
33
|
15
|
39
|
50
|
23
|
25
|
19
|
36
|
54
|
40
|
18
|
29
|
34
|
61
|
149
|
19
|
64
|
32
|
16
|
50
|
45
|
41
|
45
|
48
|
64
|
207
|
201
|
62
|
36
|
32
|
|
2024/02
|
33
|
50
|
50
|
37
|
43
|
37
|
24
|
26
|
26
|
44
|
27
|
40
|
63
|
40
|
24
|
57
|
67
|
61
|
23
|
21
|
23
|
26
|
29
|
53
|
40
|
46
|
66
|
46
|
28
|
||
|
2024/01
|
51
|
47
|
24
|
36
|
28
|
21
|
28
|
43
|
45
|
34
|
36
|
39
|
56
|
23
|
36
|
55
|
69
|
53
|
30
|
25
|
22
|
21
|
21
|
21
|
23
|
28
|
29
|
32
|
38
|
74
|
35
|
|
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