Air Quality
Excellent
No health implications.
3
PM2.5
12
PM10
40
O3
0.7
CO
5
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Nov
37
Excellent
Wed
27 Nov
38
Excellent
Thu
28 Nov
46
Excellent
Fri
29 Nov
45
Excellent
Sat
30 Nov
46
Excellent
Sun
1 Dec
47
Excellent
Mon
2 Dec
25
Excellent
Air quality in the last 12 months (Huichang)
|
2024/10
|
26
|
23
|
33
|
31
|
31
|
34
|
34
|
27
|
23
|
29
|
42
|
47
|
41
|
46
|
61
|
34
|
35
|
38
|
30
|
23
|
26
|
34
|
25
|
36
|
43
|
38
|
28
|
12
|
28
|
40
|
34
|
|
2024/09
|
31
|
33
|
36
|
28
|
24
|
19
|
17
|
18
|
17
|
24
|
31
|
38
|
36
|
30
|
22
|
23
|
27
|
23
|
28
|
20
|
22
|
21
|
20
|
22
|
22
|
24
|
29
|
27
|
23
|
23
|
|
|
2024/08
|
19
|
24
|
31
|
37
|
21
|
31
|
27
|
29
|
31
|
40
|
30
|
26
|
24
|
17
|
20
|
21
|
17
|
15
|
17
|
15
|
14
|
16
|
27
|
26
|
24
|
28
|
33
|
27
|
28
|
32
|
32
|
|
2024/07
|
22
|
18
|
21
|
19
|
21
|
21
|
15
|
16
|
19
|
21
|
21
|
18
|
18
|
21
|
19
|
18
|
16
|
16
|
18
|
19
|
19
|
22
|
28
|
29
|
28
|
15
|
11
|
13
|
18
|
21
|
13
|
|
2024/06
|
15
|
12
|
22
|
15
|
18
|
20
|
27
|
31
|
18
|
23
|
19
|
23
|
26
|
19
|
17
|
14
|
17
|
22
|
21
|
22
|
21
|
32
|
28
|
18
|
19
|
23
|
21
|
20
|
18
|
19
|
|
|
2024/05
|
18
|
23
|
32
|
29
|
17
|
27
|
41
|
43
|
46
|
53
|
39
|
28
|
49
|
39
|
41
|
48
|
51
|
50
|
41
|
23
|
14
|
12
|
21
|
20
|
16
|
17
|
17
|
20
|
28
|
33
|
22
|
|
2024/04
|
28
|
44
|
36
|
22
|
17
|
19
|
17
|
18
|
24
|
31
|
49
|
52
|
56
|
49
|
52
|
51
|
35
|
28
|
19
|
20
|
18
|
24
|
25
|
31
|
22
|
22
|
29
|
20
|
25
|
20
|
|
|
2024/03
|
25
|
30
|
37
|
49
|
42
|
18
|
34
|
42
|
49
|
49
|
31
|
36
|
57
|
54
|
29
|
41
|
47
|
23
|
27
|
56
|
59
|
52
|
44
|
44
|
32
|
22
|
38
|
31
|
36
|
47
|
28
|
|
2024/02
|
43
|
23
|
16
|
15
|
17
|
19
|
14
|
28
|
60
|
92
|
60
|
47
|
43
|
46
|
44
|
24
|
36
|
34
|
30
|
26
|
23
|
18
|
15
|
21
|
23
|
26
|
26
|
34
|
17
|
||
|
2024/01
|
82
|
80
|
37
|
46
|
51
|
54
|
54
|
68
|
51
|
38
|
44
|
49
|
50
|
52
|
60
|
88
|
66
|
54
|
50
|
21
|
22
|
19
|
30
|
38
|
48
|
51
|
55
|
52
|
59
|
40
|
51
|
|
2023/12
|
45
|
41
|
41
|
31
|
28
|
32
|
39
|
45
|
54
|
50
|
40
|
20
|
32
|
44
|
28
|
17
|
30
|
27
|
19
|
27
|
40
|
47
|
43
|
46
|
48
|
55
|
52
|
57
|
69
|
68
|
81
|
|
2023/11
|
43
|
41
|
47
|
52
|
51
|
33
|
35
|
44
|
51
|
30
|
15
|
14
|
29
|
38
|
45
|
31
|
59
|
60
|
59
|
50
|
45
|
50
|
50
|
57
|
60
|
57
|
56
|
51
|
55
|
60
|
|
|
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