Air Quality
Excellent
No health implications.
13
PM2.5
27
PM10
123
O3
0.7
CO
14
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 May
73
Good
Sun
4 May
72
Good
Mon
5 May
75
Good
Tue
6 May
79
Good
Wed
7 May
77
Good
Thu
8 May
78
Good
Fri
9 May
23
Excellent
Air quality in the last 12 months (Huili)
|
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
|
|
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
|
|
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