Air Quality
Excellent
No health implications.
5
PM2.5
5
PM10
73
O3
0.2
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
55
Good
Tue
30 Apr
49
Excellent
Wed
1 May
59
Good
Thu
2 May
72
Good
Fri
3 May
79
Good
Sat
4 May
71
Good
Sun
5 May
74
Good
Air quality in the last 12 months (Weichang)
|
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
|
|
2023/12
|
23
|
30
|
28
|
68
|
74
|
44
|
91
|
96
|
33
|
37
|
28
|
45
|
56
|
43
|
35
|
23
|
23
|
41
|
39
|
23
|
22
|
23
|
23
|
25
|
34
|
38
|
51
|
41
|
38
|
61
|
35
|
|
2023/11
|
69
|
126
|
28
|
59
|
57
|
42
|
32
|
36
|
21
|
20
|
19
|
21
|
26
|
36
|
49
|
28
|
19
|
32
|
37
|
37
|
77
|
56
|
21
|
23
|
39
|
53
|
34
|
26
|
25
|
22
|
|
|
2023/10
|
24
|
26
|
37
|
23
|
26
|
32
|
47
|
40
|
23
|
31
|
36
|
48
|
38
|
25
|
21
|
28
|
41
|
35
|
21
|
20
|
24
|
28
|
42
|
76
|
48
|
29
|
37
|
59
|
97
|
79
|
87
|
|
2023/09
|
25
|
29
|
33
|
35
|
50
|
60
|
66
|
60
|
27
|
29
|
20
|
22
|
26
|
40
|
44
|
48
|
48
|
27
|
18
|
20
|
25
|
24
|
23
|
29
|
35
|
42
|
33
|
25
|
32
|
21
|
|
|
2023/08
|
20
|
30
|
38
|
33
|
23
|
26
|
27
|
32
|
31
|
38
|
25
|
23
|
28
|
28
|
40
|
35
|
35
|
41
|
31
|
43
|
33
|
28
|
24
|
20
|
22
|
21
|
23
|
24
|
21
|
22
|
18
|
|
2023/07
|
57
|
77
|
63
|
39
|
51
|
51
|
28
|
25
|
25
|
27
|
32
|
31
|
22
|
27
|
29
|
27
|
42
|
55
|
59
|
63
|
47
|
25
|
26
|
30
|
34
|
41
|
40
|
30
|
32
|
20
|
16
|
|
2023/06
|
63
|
24
|
24
|
23
|
23
|
29
|
37
|
23
|
23
|
24
|
22
|
22
|
27
|
39
|
69
|
75
|
79
|
64
|
50
|
27
|
26
|
33
|
49
|
55
|
63
|
51
|
39
|
43
|
35
|
33
|
|
|
2023/05
|
42
|
70
|
66
|
50
|
34
|
29
|
32
|
31
|
42
|
46
|
55
|
31
|
30
|
39
|
53
|
79
|
41
|
35
|
175
|
347
|
34
|
24
|
30
|
46
|
48
|
46
|
59
|
50
|
34
|
31
|
43
|
|
2023/04
|
64
|
67
|
45
|
26
|
35
|
46
|
37
|
55
|
74
|
295
|
342
|
99
|
163
|
166
|
106
|
39
|
60
|
42
|
83
|
43
|
33
|
38
|
42
|
53
|
54
|
36
|
73
|
76
|
33
|
28
|
|
|
2023/03
|
29
|
34
|
45
|
54
|
95
|
66
|
59
|
54
|
95
|
258
|
43
|
41
|
66
|
168
|
65
|
31
|
55
|
42
|
35
|
67
|
140
|
306
|
63
|
33
|
34
|
27
|
33
|
44
|
59
|
55
|
66
|
|
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