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
20 Mar
Sat
21 Mar
Sun
22 Mar
Mon
23 Mar
Tue
24 Mar
Wed
25 Mar
Thu
26 Mar
Real-time AQI (Monitoring Station in Huaihua)
市四医院
179
PM2.5
13
PM10
52
O3
0.5
CO
6
SO2
12
NO2
监测楼
1912
PM2.5
12
PM10
58
O3
0.4
CO
3
SO2
9
NO2
Air quality in the last 12 months (Huaihua)
|
2026/02
|
60
|
74
|
73
|
86
|
86
|
89
|
93
|
67
|
52
|
37
|
49
|
75
|
63
|
48
|
52
|
23
|
46
|
61
|
46
|
40
|
53
|
52
|
30
|
47
|
60
|
17
|
19
|
20
|
|||
|
2026/01
|
30
|
61
|
62
|
34
|
49
|
56
|
61
|
70
|
74
|
121
|
110
|
112
|
101
|
97
|
118
|
142
|
130
|
136
|
57
|
30
|
47
|
66
|
75
|
85
|
65
|
33
|
74
|
85
|
71
|
19
|
50
|
|
2025/12
|
65
|
92
|
73
|
61
|
57
|
60
|
65
|
64
|
74
|
89
|
90
|
143
|
36
|
51
|
57
|
65
|
68
|
80
|
72
|
69
|
45
|
52
|
36
|
45
|
63
|
57
|
58
|
66
|
85
|
100
|
85
|
|
2025/11
|
38
|
23
|
17
|
22
|
30
|
20
|
15
|
7
|
8
|
12
|
45
|
48
|
44
|
48
|
51
|
56
|
49
|
26
|
32
|
39
|
38
|
43
|
39
|
41
|
53
|
55
|
64
|
66
|
57
|
58
|
|
|
2025/10
|
40
|
25
|
24
|
28
|
33
|
26
|
25
|
43
|
34
|
33
|
35
|
52
|
37
|
25
|
35
|
22
|
23
|
10
|
12
|
9
|
10
|
30
|
39
|
40
|
51
|
39
|
30
|
44
|
55
|
52
|
39
|
|
2025/09
|
30
|
27
|
26
|
24
|
35
|
33
|
35
|
35
|
15
|
17
|
22
|
18
|
20
|
25
|
28
|
26
|
25
|
22
|
21
|
18
|
31
|
25
|
17
|
18
|
20
|
14
|
24
|
34
|
31
|
23
|
|
|
2025/08
|
32
|
38
|
34
|
29
|
32
|
21
|
14
|
19
|
25
|
24
|
29
|
21
|
21
|
20
|
14
|
20
|
31
|
36
|
24
|
22
|
16
|
20
|
25
|
28
|
22
|
26
|
25
|
26
|
31
|
34
|
29
|
|
2025/07
|
20
|
18
|
19
|
23
|
29
|
36
|
33
|
35
|
39
|
28
|
30
|
36
|
31
|
30
|
22
|
26
|
28
|
29
|
32
|
32
|
11
|
10
|
14
|
21
|
21
|
31
|
32
|
26
|
30
|
28
|
30
|
|
2025/06
|
19
|
26
|
39
|
38
|
45
|
40
|
26
|
22
|
33
|
39
|
39
|
30
|
29
|
24
|
23
|
33
|
17
|
14
|
14
|
15
|
14
|
9
|
11
|
12
|
25
|
30
|
21
|
19
|
19
|
21
|
|
|
2025/05
|
45
|
63
|
57
|
48
|
39
|
53
|
57
|
36
|
21
|
32
|
35
|
53
|
52
|
56
|
51
|
29
|
45
|
37
|
45
|
28
|
26
|
28
|
39
|
54
|
52
|
34
|
30
|
11
|
29
|
31
|
23
|
|
2025/04
|
51
|
57
|
68
|
76
|
85
|
77
|
73
|
85
|
72
|
61
|
57
|
45
|
123
|
113
|
88
|
82
|
72
|
65
|
27
|
35
|
44
|
32
|
56
|
35
|
42
|
44
|
29
|
42
|
55
|
29
|
|
|
2025/03
|
35
|
32
|
11
|
19
|
23
|
32
|
26
|
35
|
46
|
41
|
29
|
37
|
48
|
25
|
17
|
42
|
42
|
42
|
42
|
43
|
50
|
63
|
66
|
65
|
74
|
73
|
81
|
75
|
46
|
20
|
39
|
|
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