Air Quality
Excellent
No health implications.
20
PM2.5
31
PM10
107
O3
0.8
CO
6
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
75
Good
Tue
21 Apr
65
Good
Wed
22 Apr
54
Good
Thu
23 Apr
56
Good
Fri
24 Apr
56
Good
Sat
25 Apr
28
Excellent
Sun
26 Apr
23
Excellent
Air quality in the last 12 months (Huilai)
|
2026/03
|
26
|
56
|
27
|
33
|
35
|
29
|
48
|
39
|
36
|
45
|
43
|
50
|
46
|
47
|
46
|
44
|
40
|
41
|
45
|
35
|
39
|
42
|
50
|
38
|
54
|
37
|
47
|
34
|
38
|
37
|
38
|
|
2026/02
|
31
|
35
|
47
|
52
|
57
|
54
|
32
|
41
|
41
|
45
|
57
|
47
|
49
|
49
|
43
|
45
|
39
|
43
|
43
|
63
|
69
|
73
|
64
|
83
|
70
|
27
|
46
|
13
|
|||
|
2026/01
|
38
|
28
|
38
|
52
|
59
|
33
|
45
|
51
|
55
|
65
|
65
|
64
|
76
|
61
|
56
|
56
|
60
|
57
|
53
|
33
|
44
|
45
|
49
|
49
|
33
|
45
|
53
|
36
|
34
|
53
|
39
|
|
2025/12
|
48
|
38
|
45
|
53
|
42
|
45
|
61
|
73
|
50
|
49
|
52
|
48
|
50
|
41
|
48
|
58
|
71
|
52
|
60
|
47
|
80
|
39
|
42
|
43
|
26
|
30
|
39
|
44
|
49
|
52
|
38
|
|
2025/11
|
30
|
43
|
48
|
33
|
24
|
33
|
32
|
36
|
47
|
30
|
33
|
20
|
15
|
28
|
45
|
44
|
43
|
45
|
29
|
53
|
46
|
52
|
64
|
66
|
45
|
66
|
65
|
70
|
88
|
77
|
|
|
2025/10
|
34
|
24
|
30
|
29
|
23
|
21
|
38
|
31
|
31
|
26
|
27
|
25
|
15
|
29
|
27
|
29
|
35
|
35
|
32
|
23
|
21
|
16
|
27
|
39
|
36
|
49
|
48
|
46
|
29
|
46
|
43
|
|
2025/09
|
23
|
25
|
26
|
21
|
23
|
32
|
13
|
17
|
17
|
19
|
19
|
25
|
19
|
17
|
18
|
27
|
23
|
24
|
13
|
15
|
16
|
32
|
23
|
29
|
25
|
30
|
26
|
26
|
34
|
31
|
|
|
2025/08
|
26
|
17
|
19
|
11
|
11
|
28
|
36
|
37
|
24
|
12
|
10
|
20
|
33
|
11
|
23
|
28
|
19
|
14
|
16
|
33
|
25
|
40
|
31
|
18
|
27
|
23
|
19
|
25
|
26
|
19
|
23
|
|
2025/07
|
16
|
23
|
27
|
29
|
12
|
21
|
35
|
29
|
23
|
17
|
14
|
36
|
39
|
33
|
30
|
29
|
34
|
25
|
21
|
22
|
23
|
16
|
25
|
30
|
32
|
35
|
34
|
21
|
22
|
33
|
24
|
|
2025/06
|
43
|
22
|
23
|
21
|
34
|
25
|
36
|
19
|
21
|
24
|
17
|
20
|
15
|
32
|
29
|
20
|
14
|
24
|
14
|
13
|
12
|
13
|
14
|
14
|
14
|
14
|
20
|
18
|
12
|
12
|
|
|
2025/05
|
46
|
63
|
57
|
43
|
35
|
27
|
36
|
56
|
45
|
32
|
30
|
42
|
38
|
37
|
27
|
20
|
17
|
17
|
21
|
16
|
16
|
21
|
20
|
24
|
30
|
40
|
34
|
28
|
23
|
21
|
36
|
|
2025/04
|
20
|
42
|
57
|
60
|
39
|
57
|
62
|
69
|
50
|
35
|
48
|
36
|
147
|
124
|
124
|
94
|
71
|
60
|
32
|
37
|
30
|
31
|
34
|
31
|
19
|
22
|
41
|
46
|
37
|
59
|
|
|
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