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
2 Feb
Mon
3 Feb
Tue
4 Feb
Wed
5 Feb
Thu
6 Feb
Fri
7 Feb
Sat
8 Feb
Real-time AQI (Monitoring Station in Hengyang)
衡阳化工总厂
128
PM2.5
11
PM10
21
O3
0.9
CO
2
SO2
8
NO2
市监测站
1510
PM2.5
10
PM10
20
O3
0.9
CO
6
SO2
10
NO2
师范学院
1812
PM2.5
13
PM10
24
O3
1.0
CO
5
SO2
11
NO2
Air quality in the last 12 months (Hengyang)
|
2024/12
|
75
|
83
|
94
|
147
|
47
|
48
|
52
|
72
|
105
|
78
|
58
|
82
|
100
|
63
|
60
|
74
|
84
|
80
|
97
|
124
|
120
|
106
|
88
|
102
|
131
|
124
|
137
|
122
|
100
|
123
|
124
|
|
2024/11
|
66
|
115
|
92
|
87
|
103
|
73
|
67
|
51
|
63
|
83
|
62
|
71
|
65
|
81
|
71
|
79
|
21
|
14
|
16
|
34
|
51
|
54
|
69
|
80
|
40
|
28
|
40
|
45
|
54
|
64
|
|
|
2024/10
|
30
|
52
|
56
|
53
|
56
|
77
|
74
|
55
|
52
|
67
|
75
|
73
|
171
|
79
|
38
|
38
|
54
|
46
|
29
|
26
|
41
|
24
|
36
|
46
|
59
|
68
|
56
|
69
|
69
|
55
|
60
|
|
2024/09
|
48
|
51
|
53
|
51
|
49
|
46
|
34
|
34
|
45
|
40
|
44
|
36
|
29
|
43
|
43
|
41
|
47
|
46
|
42
|
41
|
33
|
32
|
39
|
46
|
69
|
60
|
61
|
57
|
51
|
51
|
|
|
2024/08
|
17
|
21
|
25
|
31
|
33
|
32
|
31
|
31
|
33
|
34
|
30
|
32
|
27
|
35
|
39
|
36
|
45
|
60
|
36
|
45
|
46
|
24
|
24
|
24
|
41
|
38
|
45
|
25
|
35
|
39
|
50
|
|
2024/07
|
25
|
17
|
25
|
19
|
22
|
22
|
26
|
21
|
23
|
26
|
27
|
28
|
26
|
22
|
30
|
24
|
18
|
18
|
17
|
24
|
25
|
27
|
27
|
35
|
44
|
35
|
22
|
12
|
17
|
15
|
17
|
|
2024/06
|
23
|
27
|
39
|
21
|
21
|
33
|
42
|
40
|
42
|
30
|
29
|
24
|
21
|
23
|
22
|
26
|
16
|
19
|
19
|
26
|
25
|
24
|
28
|
25
|
10
|
16
|
30
|
30
|
23
|
25
|
|
|
2024/05
|
23
|
38
|
34
|
16
|
35
|
71
|
101
|
94
|
72
|
93
|
38
|
75
|
87
|
70
|
65
|
69
|
61
|
50
|
27
|
22
|
41
|
41
|
42
|
45
|
35
|
30
|
20
|
34
|
29
|
19
|
22
|
|
2024/04
|
38
|
51
|
27
|
26
|
26
|
32
|
40
|
47
|
49
|
43
|
53
|
51
|
48
|
58
|
57
|
47
|
26
|
41
|
32
|
28
|
40
|
56
|
42
|
48
|
33
|
37
|
42
|
58
|
48
|
13
|
|
|
2024/03
|
97
|
73
|
58
|
49
|
48
|
110
|
81
|
71
|
58
|
67
|
56
|
59
|
51
|
45
|
51
|
39
|
45
|
19
|
52
|
69
|
79
|
50
|
30
|
37
|
29
|
29
|
50
|
31
|
46
|
49
|
36
|
|
2024/02
|
41
|
20
|
21
|
37
|
77
|
37
|
58
|
109
|
132
|
207
|
167
|
143
|
52
|
53
|
58
|
48
|
45
|
31
|
50
|
51
|
15
|
27
|
36
|
42
|
75
|
56
|
89
|
52
|
64
|
||
|
2024/01
|
105
|
111
|
68
|
76
|
83
|
92
|
107
|
115
|
120
|
109
|
103
|
99
|
107
|
93
|
192
|
162
|
109
|
43
|
20
|
24
|
68
|
41
|
50
|
51
|
55
|
71
|
90
|
96
|
82
|
57
|
73
|
|
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