Air Quality
Excellent
No health implications.
11
PM2.5
25
PM10
70
O3
0.3
CO
3
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Dec
56
Good
Thu
4 Dec
57
Good
Fri
5 Dec
67
Good
Sat
6 Dec
69
Good
Sun
7 Dec
52
Good
Mon
8 Dec
59
Good
Tue
9 Dec
19
Excellent
Air quality in the last 12 months (Huailai)
|
2025/11
|
14
|
18
|
46
|
59
|
111
|
121
|
55
|
52
|
33
|
37
|
52
|
55
|
30
|
53
|
62
|
24
|
17
|
26
|
41
|
29
|
43
|
56
|
84
|
52
|
36
|
72
|
36
|
69
|
90
|
91
|
|
|
2025/10
|
35
|
45
|
34
|
39
|
44
|
25
|
34
|
18
|
7
|
9
|
21
|
27
|
40
|
43
|
53
|
43
|
13
|
14
|
13
|
19
|
24
|
35
|
53
|
69
|
69
|
13
|
27
|
56
|
112
|
88
|
43
|
|
2025/09
|
22
|
34
|
41
|
40
|
34
|
26
|
25
|
24
|
40
|
41
|
47
|
47
|
42
|
27
|
25
|
19
|
13
|
14
|
22
|
29
|
32
|
28
|
30
|
30
|
32
|
39
|
44
|
31
|
25
|
31
|
|
|
2025/08
|
39
|
47
|
25
|
31
|
20
|
24
|
22
|
22
|
18
|
20
|
32
|
31
|
20
|
34
|
46
|
18
|
27
|
34
|
17
|
20
|
22
|
27
|
19
|
19
|
24
|
24
|
12
|
21
|
33
|
31
|
28
|
|
2025/07
|
29
|
32
|
22
|
29
|
18
|
17
|
28
|
30
|
38
|
27
|
50
|
46
|
19
|
32
|
39
|
19
|
13
|
24
|
51
|
15
|
18
|
31
|
35
|
21
|
18
|
25
|
26
|
23
|
12
|
16
|
30
|
|
2025/06
|
55
|
15
|
11
|
18
|
33
|
28
|
21
|
37
|
38
|
27
|
48
|
69
|
52
|
41
|
12
|
16
|
32
|
50
|
32
|
23
|
21
|
28
|
42
|
43
|
51
|
63
|
64
|
52
|
41
|
39
|
|
|
2025/05
|
24
|
26
|
18
|
30
|
62
|
33
|
58
|
85
|
18
|
39
|
34
|
52
|
59
|
24
|
45
|
73
|
42
|
30
|
35
|
72
|
67
|
59
|
52
|
39
|
44
|
34
|
34
|
46
|
59
|
65
|
51
|
|
2025/04
|
30
|
24
|
54
|
62
|
23
|
56
|
60
|
35
|
43
|
49
|
116
|
72
|
56
|
38
|
41
|
83
|
72
|
18
|
30
|
58
|
67
|
34
|
53
|
29
|
39
|
66
|
23
|
34
|
50
|
32
|
|
|
2025/03
|
132
|
87
|
33
|
46
|
45
|
24
|
50
|
81
|
100
|
118
|
149
|
69
|
86
|
71
|
39
|
20
|
24
|
23
|
24
|
28
|
29
|
58
|
188
|
87
|
60
|
98
|
40
|
24
|
21
|
36
|
40
|
|
2025/02
|
85
|
47
|
9
|
18
|
23
|
52
|
13
|
15
|
25
|
49
|
80
|
30
|
46
|
50
|
69
|
21
|
19
|
26
|
20
|
19
|
19
|
19
|
15
|
34
|
32
|
44
|
78
|
86
|
|||
|
2025/01
|
46
|
25
|
27
|
38
|
38
|
12
|
11
|
19
|
18
|
22
|
44
|
28
|
32
|
19
|
25
|
43
|
54
|
56
|
37
|
50
|
39
|
37
|
71
|
87
|
114
|
105
|
13
|
19
|
83
|
49
|
71
|
|
2024/12
|
38
|
14
|
25
|
27
|
16
|
16
|
13
|
25
|
39
|
43
|
42
|
51
|
24
|
23
|
33
|
35
|
20
|
22
|
36
|
34
|
19
|
31
|
43
|
58
|
56
|
23
|
17
|
42
|
70
|
69
|
46
|
|
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