Air Quality
Excellent
No health implications.
21
PM2.5
38
PM10
101
O3
0.8
CO
15
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Feb
52
Good
Sat
1 Mar
49
Excellent
Sun
2 Mar
52
Good
Mon
3 Mar
55
Good
Tue
4 Mar
52
Good
Wed
5 Mar
54
Good
Thu
6 Mar
49
Excellent
Air quality in the last 12 months (Huili)
|
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
|
|
2024/06
|
32
|
41
|
26
|
24
|
17
|
27
|
20
|
20
|
14
|
29
|
25
|
19
|
25
|
20
|
28
|
37
|
23
|
27
|
27
|
28
|
34
|
31
|
24
|
20
|
27
|
32
|
31
|
19
|
24
|
29
|
|
|
2024/05
|
46
|
43
|
34
|
40
|
49
|
45
|
40
|
38
|
35
|
37
|
29
|
18
|
22
|
32
|
20
|
31
|
40
|
31
|
22
|
23
|
29
|
36
|
30
|
30
|
22
|
15
|
19
|
27
|
20
|
23
|
19
|
|
2024/04
|
22
|
34
|
40
|
42
|
42
|
53
|
39
|
36
|
41
|
37
|
42
|
45
|
35
|
45
|
47
|
45
|
53
|
37
|
41
|
37
|
25
|
37
|
46
|
37
|
32
|
41
|
40
|
47
|
32
|
42
|
|
|
2024/03
|
30
|
36
|
27
|
27
|
23
|
26
|
27
|
25
|
27
|
34
|
33
|
56
|
50
|
44
|
44
|
43
|
47
|
37
|
49
|
57
|
54
|
33
|
20
|
25
|
34
|
35
|
34
|
34
|
39
|
43
|
34
|
|
2024/02
|
35
|
51
|
37
|
30
|
34
|
29
|
28
|
31
|
32
|
42
|
44
|
41
|
31
|
30
|
36
|
36
|
29
|
31
|
28
|
27
|
34
|
41
|
50
|
39
|
36
|
35
|
31
|
27
|
33
|
||
|
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