Air Quality
Excellent
No health implications.
13
PM2.5
20
PM10
24
O3
0.7
CO
8
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Aug
55
Good
Thu
21 Aug
54
Good
Fri
22 Aug
53
Good
Sat
23 Aug
48
Excellent
Sun
24 Aug
52
Good
Mon
25 Aug
47
Excellent
Tue
26 Aug
36
Excellent
Huili Air quality rank
Air quality in the last 12 months (Huili)
|
2025/06
|
24
|
22
|
18
|
27
|
36
|
37
|
32
|
29
|
31
|
43
|
37
|
40
|
47
|
46
|
19
|
30
|
25
|
21
|
17
|
16
|
13
|
17
|
25
|
19
|
20
|
30
|
23
|
27
|
21
|
18
|
|
|
2025/05
|
41
|
35
|
29
|
25
|
26
|
28
|
28
|
26
|
33
|
35
|
35
|
36
|
32
|
29
|
31
|
34
|
30
|
31
|
31
|
29
|
31
|
31
|
42
|
29
|
48
|
37
|
23
|
17
|
20
|
23
|
15
|
|
2025/04
|
46
|
54
|
61
|
57
|
45
|
47
|
45
|
56
|
56
|
54
|
45
|
60
|
52
|
47
|
47
|
36
|
27
|
28
|
29
|
25
|
24
|
29
|
38
|
40
|
38
|
56
|
52
|
41
|
43
|
25
|
|
|
2025/03
|
39
|
43
|
32
|
39
|
37
|
30
|
39
|
59
|
54
|
51
|
47
|
49
|
64
|
59
|
44
|
31
|
29
|
15
|
27
|
47
|
63
|
68
|
49
|
33
|
29
|
31
|
35
|
68
|
72
|
60
|
54
|
|
2025/02
|
51
|
49
|
24
|
39
|
53
|
48
|
33
|
36
|
44
|
35
|
34
|
34
|
40
|
48
|
36
|
42
|
34
|
40
|
46
|
36
|
39
|
36
|
40
|
40
|
35
|
35
|
36
|
33
|
|||
|
2025/01
|
54
|
50
|
55
|
53
|
47
|
57
|
47
|
31
|
43
|
49
|
24
|
45
|
49
|
45
|
45
|
66
|
58
|
62
|
60
|
65
|
58
|
54
|
66
|
47
|
35
|
32
|
42
|
47
|
57
|
59
|
40
|
|
2024/12
|
45
|
45
|
49
|
42
|
42
|
45
|
44
|
45
|
39
|
34
|
41
|
48
|
44
|
35
|
43
|
55
|
49
|
47
|
42
|
41
|
52
|
45
|
41
|
48
|
54
|
52
|
59
|
60
|
59
|
48
|
44
|
|
2024/11
|
33
|
26
|
35
|
29
|
30
|
45
|
32
|
17
|
23
|
32
|
35
|
36
|
35
|
42
|
46
|
44
|
44
|
42
|
47
|
44
|
42
|
27
|
31
|
32
|
36
|
33
|
34
|
36
|
31
|
34
|
|
|
2024/10
|
15
|
24
|
32
|
35
|
22
|
19
|
22
|
30
|
22
|
22
|
23
|
27
|
36
|
32
|
26
|
25
|
33
|
40
|
45
|
39
|
31
|
27
|
27
|
35
|
42
|
39
|
23
|
34
|
44
|
41
|
36
|
|
2024/09
|
30
|
19
|
27
|
29
|
20
|
24
|
34
|
31
|
28
|
19
|
25
|
26
|
30
|
34
|
38
|
24
|
26
|
30
|
41
|
43
|
40
|
31
|
24
|
41
|
38
|
34
|
44
|
22
|
24
|
27
|
|
|
2024/08
|
41
|
43
|
34
|
30
|
28
|
26
|
23
|
21
|
21
|
24
|
42
|
42
|
43
|
48
|
49
|
42
|
40
|
31
|
36
|
39
|
41
|
46
|
33
|
39
|
37
|
31
|
26
|
40
|
44
|
46
|
36
|
|
2024/07
|
23
|
23
|
21
|
15
|
13
|
21
|
16
|
17
|
20
|
24
|
20
|
23
|
22
|
27
|
19
|
25
|
24
|
30
|
30
|
24
|
29
|
35
|
39
|
36
|
28
|
35
|
43
|
37
|
21
|
18
|
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