Air Quality
Excellent
No health implications.
9
PM2.5
17
PM10
29
O3
0.7
CO
4
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
56
Good
Sat
10 May
57
Good
Sun
11 May
63
Good
Mon
12 May
90
Good
Tue
13 May
68
Good
Wed
14 May
58
Good
Thu
15 May
50
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