Air Quality
Excellent
No health implications.
17
PM2.5
39
PM10
112
O3
0.6
CO
9
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 Apr
70
Good
Thu
3 Apr
90
Good
Fri
4 Apr
62
Good
Sat
5 Apr
62
Good
Sun
6 Apr
58
Good
Mon
7 Apr
53
Good
Tue
8 Apr
48
Excellent
Air quality in the last 12 months (Huilai)
|
2025/02
|
72
|
28
|
18
|
30
|
58
|
47
|
31
|
44
|
51
|
45
|
54
|
73
|
63
|
51
|
51
|
70
|
53
|
67
|
39
|
40
|
30
|
32
|
31
|
31
|
54
|
55
|
59
|
77
|
|||
|
2025/01
|
57
|
61
|
60
|
51
|
65
|
69
|
57
|
60
|
57
|
58
|
48
|
43
|
57
|
55
|
63
|
87
|
57
|
49
|
85
|
56
|
59
|
59
|
64
|
33
|
32
|
35
|
29
|
53
|
80
|
58
|
67
|
|
2024/12
|
66
|
72
|
66
|
40
|
45
|
51
|
51
|
46
|
44
|
32
|
47
|
38
|
35
|
62
|
55
|
53
|
59
|
51
|
53
|
49
|
51
|
61
|
60
|
43
|
46
|
51
|
58
|
82
|
65
|
68
|
81
|
|
2024/11
|
29
|
20
|
32
|
45
|
43
|
45
|
38
|
37
|
33
|
33
|
43
|
38
|
24
|
28
|
42
|
33
|
30
|
27
|
19
|
11
|
15
|
34
|
37
|
35
|
37
|
19
|
35
|
35
|
35
|
57
|
|
|
2024/10
|
25
|
25
|
32
|
27
|
27
|
38
|
34
|
33
|
31
|
42
|
46
|
41
|
33
|
36
|
32
|
26
|
31
|
44
|
48
|
19
|
29
|
39
|
31
|
38
|
46
|
44
|
50
|
25
|
30
|
48
|
37
|
|
2024/09
|
29
|
39
|
41
|
30
|
21
|
13
|
18
|
15
|
21
|
36
|
47
|
43
|
36
|
31
|
31
|
24
|
34
|
26
|
31
|
19
|
14
|
20
|
13
|
16
|
29
|
28
|
39
|
22
|
31
|
37
|
|
|
2024/08
|
28
|
29
|
31
|
35
|
42
|
43
|
46
|
39
|
31
|
23
|
29
|
25
|
26
|
25
|
28
|
23
|
14
|
20
|
12
|
12
|
15
|
28
|
34
|
33
|
41
|
35
|
32
|
39
|
47
|
26
|
17
|
|
2024/07
|
23
|
19
|
13
|
18
|
15
|
13
|
11
|
18
|
22
|
21
|
13
|
12
|
15
|
17
|
16
|
16
|
22
|
20
|
17
|
21
|
17
|
19
|
26
|
33
|
34
|
14
|
14
|
16
|
21
|
17
|
17
|
|
2024/06
|
15
|
14
|
19
|
28
|
30
|
44
|
15
|
19
|
21
|
14
|
15
|
23
|
21
|
26
|
23
|
18
|
18
|
17
|
16
|
14
|
25
|
25
|
15
|
12
|
16
|
16
|
17
|
16
|
11
|
17
|
|
|
2024/05
|
42
|
25
|
32
|
37
|
23
|
38
|
42
|
54
|
45
|
37
|
52
|
46
|
29
|
31
|
54
|
64
|
53
|
59
|
47
|
28
|
21
|
14
|
14
|
15
|
24
|
24
|
22
|
25
|
26
|
31
|
30
|
|
2024/04
|
42
|
46
|
24
|
40
|
46
|
31
|
35
|
50
|
19
|
45
|
46
|
54
|
60
|
36
|
36
|
33
|
24
|
29
|
48
|
46
|
27
|
37
|
25
|
37
|
32
|
20
|
27
|
19
|
31
|
22
|
|
|
2024/03
|
20
|
24
|
39
|
47
|
94
|
85
|
30
|
55
|
63
|
53
|
48
|
31
|
72
|
70
|
76
|
92
|
116
|
50
|
60
|
59
|
60
|
66
|
75
|
39
|
34
|
49
|
44
|
55
|
71
|
69
|
24
|
|
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