Air Quality
Excellent
No health implications.
28
PM2.5
45
PM10
97
O3
0.6
CO
14
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jun
82
Good
Sat
28 Jun
81
Good
Sun
29 Jun
78
Good
Mon
30 Jun
92
Good
Tue
1 Jul
105
Light
Wed
2 Jul
34
Excellent
Thu
3 Jul
36
Excellent
Weichang Air quality rank
Air quality in the last 12 months (Weichang)
|
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
|
|
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
|
|
|
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