Air Quality
Excellent
No health implications.
9
PM2.5
24
PM10
8
O3
0.5
CO
8
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Aug
50
Excellent
Sun
17 Aug
50
Excellent
Mon
18 Aug
45
Excellent
Tue
19 Aug
45
Excellent
Wed
20 Aug
44
Excellent
Thu
21 Aug
45
Excellent
Fri
22 Aug
28
Excellent
Huichang Air quality rank
Air quality in the last 12 months (Huichang)
|
2025/06
|
19
|
21
|
14
|
24
|
32
|
35
|
32
|
32
|
23
|
26
|
23
|
19
|
23
|
15
|
14
|
16
|
15
|
18
|
18
|
15
|
14
|
15
|
17
|
22
|
26
|
19
|
16
|
18
|
19
|
19
|
|
|
2025/05
|
47
|
49
|
50
|
43
|
21
|
24
|
35
|
27
|
18
|
35
|
26
|
34
|
37
|
34
|
31
|
25
|
22
|
18
|
16
|
19
|
22
|
27
|
24
|
30
|
45
|
40
|
42
|
31
|
12
|
18
|
27
|
|
2025/04
|
33
|
38
|
46
|
53
|
48
|
52
|
56
|
58
|
59
|
44
|
45
|
83
|
145
|
99
|
75
|
65
|
65
|
55
|
27
|
22
|
36
|
32
|
21
|
23
|
17
|
15
|
21
|
27
|
45
|
49
|
|
|
2025/03
|
31
|
26
|
30
|
14
|
15
|
16
|
31
|
29
|
41
|
51
|
48
|
35
|
31
|
21
|
12
|
21
|
47
|
35
|
40
|
38
|
42
|
48
|
52
|
62
|
72
|
68
|
47
|
54
|
15
|
9
|
19
|
|
2025/02
|
35
|
23
|
18
|
36
|
38
|
44
|
32
|
54
|
33
|
41
|
46
|
82
|
56
|
55
|
58
|
38
|
38
|
44
|
42
|
27
|
19
|
21
|
16
|
25
|
42
|
58
|
46
|
36
|
|||
|
2025/01
|
88
|
68
|
69
|
67
|
76
|
81
|
71
|
65
|
61
|
39
|
43
|
48
|
54
|
51
|
58
|
53
|
45
|
51
|
53
|
52
|
54
|
59
|
46
|
57
|
52
|
14
|
33
|
61
|
95
|
58
|
44
|
|
2024/12
|
50
|
48
|
49
|
54
|
62
|
52
|
43
|
48
|
60
|
55
|
39
|
32
|
47
|
59
|
49
|
48
|
49
|
54
|
59
|
60
|
58
|
70
|
72
|
63
|
76
|
66
|
86
|
85
|
72
|
62
|
70
|
|
2024/11
|
20
|
27
|
37
|
43
|
49
|
46
|
37
|
38
|
45
|
44
|
38
|
35
|
34
|
35
|
29
|
18
|
27
|
18
|
22
|
28
|
28
|
29
|
34
|
46
|
37
|
19
|
30
|
30
|
35
|
45
|
|
|
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
|
|
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