Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Mar
Sun
16 Mar
Mon
17 Mar
Tue
18 Mar
Wed
19 Mar
Thu
20 Mar
Fri
21 Mar
Real-time AQI (Monitoring Station in Huaihua)
林科所
253
PM2.5
7
PM10
77
O3
0.6
CO
4
SO2
5
NO2
市四医院
1812
PM2.5
15
PM10
53
O3
0.5
CO
3
SO2
9
NO2
Air quality in the last 12 months (Huaihua)
|
2025/01
|
117
|
114
|
133
|
174
|
154
|
99
|
79
|
51
|
45
|
67
|
73
|
78
|
89
|
86
|
79
|
70
|
73
|
114
|
102
|
94
|
110
|
143
|
177
|
149
|
18
|
24
|
46
|
93
|
256
|
123
|
44
|
|
2024/12
|
51
|
56
|
88
|
90
|
23
|
32
|
39
|
51
|
58
|
21
|
36
|
61
|
68
|
50
|
55
|
56
|
72
|
68
|
69
|
72
|
89
|
74
|
55
|
72
|
75
|
77
|
81
|
117
|
122
|
101
|
86
|
|
2024/11
|
50
|
66
|
64
|
58
|
66
|
61
|
57
|
59
|
71
|
59
|
54
|
59
|
62
|
72
|
73
|
58
|
12
|
11
|
12
|
21
|
34
|
35
|
51
|
38
|
12
|
21
|
33
|
37
|
43
|
48
|
|
|
2024/10
|
14
|
42
|
58
|
48
|
55
|
58
|
40
|
38
|
43
|
51
|
58
|
74
|
63
|
35
|
42
|
33
|
40
|
29
|
18
|
14
|
19
|
15
|
29
|
40
|
45
|
43
|
49
|
52
|
57
|
55
|
57
|
|
2024/09
|
33
|
28
|
41
|
31
|
53
|
46
|
43
|
39
|
33
|
34
|
37
|
38
|
21
|
27
|
39
|
34
|
36
|
37
|
36
|
33
|
35
|
27
|
38
|
42
|
49
|
55
|
58
|
49
|
53
|
53
|
|
|
2024/08
|
12
|
16
|
17
|
22
|
25
|
23
|
27
|
25
|
24
|
23
|
18
|
45
|
39
|
47
|
44
|
37
|
40
|
35
|
24
|
32
|
31
|
21
|
16
|
15
|
21
|
22
|
25
|
25
|
32
|
32
|
40
|
|
2024/07
|
13
|
14
|
17
|
17
|
17
|
13
|
15
|
15
|
18
|
19
|
23
|
21
|
21
|
18
|
21
|
20
|
18
|
16
|
11
|
16
|
25
|
25
|
20
|
24
|
27
|
27
|
27
|
17
|
12
|
17
|
15
|
|
2024/06
|
32
|
24
|
27
|
12
|
13
|
22
|
28
|
12
|
13
|
15
|
18
|
21
|
22
|
19
|
29
|
34
|
13
|
10
|
19
|
23
|
22
|
18
|
15
|
15
|
15
|
15
|
12
|
17
|
12
|
14
|
|
|
2024/05
|
20
|
30
|
12
|
11
|
21
|
37
|
47
|
51
|
42
|
33
|
21
|
52
|
48
|
55
|
60
|
70
|
54
|
29
|
14
|
14
|
30
|
44
|
41
|
36
|
36
|
22
|
18
|
42
|
18
|
8
|
24
|
|
2024/04
|
28
|
33
|
19
|
32
|
27
|
30
|
32
|
36
|
33
|
37
|
35
|
34
|
33
|
30
|
51
|
37
|
20
|
37
|
20
|
27
|
46
|
47
|
38
|
46
|
28
|
35
|
31
|
32
|
25
|
13
|
|
|
2024/03
|
73
|
48
|
49
|
23
|
20
|
72
|
74
|
58
|
54
|
53
|
49
|
52
|
38
|
47
|
37
|
29
|
22
|
18
|
43
|
74
|
68
|
45
|
33
|
41
|
19
|
22
|
35
|
24
|
39
|
42
|
30
|
|
2024/02
|
23
|
15
|
17
|
36
|
49
|
54
|
63
|
77
|
94
|
131
|
101
|
101
|
72
|
37
|
47
|
53
|
46
|
33
|
79
|
49
|
13
|
23
|
24
|
28
|
28
|
32
|
49
|
45
|
54
|
||
|
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
*: primary pollution