Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
4 May
Mon
5 May
Tue
6 May
Wed
7 May
Thu
8 May
Fri
9 May
Sat
10 May
Real-time AQI (Monitoring Station in Hengyang)
原169医院
5030
PM2.5
50
PM10
106
O3
0.4
CO
4
SO2
5
NO2
衡阳化工总厂
5928
PM2.5
68 *
PM10
113
O3
0.4
CO
9
SO2
5
NO2
珠晖区环保局
5933
PM2.5
68 *
PM10
103
O3
0.6
CO
11
SO2
14
NO2
市监测站
5733
PM2.5
64 *
PM10
108
O3
0.6
CO
12
SO2
10
NO2
真空机电公司
5431
PM2.5
58 *
PM10
110
O3
0.5
CO
6
SO2
6
NO2
师范学院
5431
PM2.5
58 *
PM10
116
O3
0.7
CO
16
SO2
9
NO2
Air quality in the last 12 months (Hengyang)
|
2025/02
|
42
|
29
|
56
|
75
|
86
|
81
|
67
|
53
|
48
|
56
|
74
|
79
|
100
|
119
|
58
|
46
|
56
|
46
|
39
|
26
|
93
|
37
|
44
|
89
|
107
|
105
|
63
|
39
|
|||
|
2025/01
|
153
|
132
|
160
|
181
|
147
|
101
|
94
|
86
|
60
|
62
|
68
|
90
|
88
|
84
|
89
|
68
|
83
|
91
|
125
|
111
|
113
|
120
|
176
|
250
|
36
|
34
|
58
|
70
|
221
|
148
|
69
|
|
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
|
|
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