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
3 Jan
Sun
4 Jan
Mon
5 Jan
Tue
6 Jan
Wed
7 Jan
Thu
8 Jan
Fri
9 Jan
Hengyang Air quality rank
Real-time AQI (Monitoring Station in Hengyang)
衡阳化工总厂
7857 *
PM2.5
65
PM10
34
O3
1.1
CO
8
SO2
16
NO2
珠晖区环保局
7454 *
PM2.5
56
PM10
32
O3
1.0
CO
4
SO2
16
NO2
市监测站
8764 *
PM2.5
91
PM10
32
O3
1.0
CO
9
SO2
17
NO2
真空机电公司
8462 *
PM2.5
71
PM10
32
O3
0.9
CO
8
SO2
20
NO2
师范学院
7252 *
PM2.5
76
PM10
39
O3
1.2
CO
3
SO2
16
NO2
Air quality in the last 12 months (Hengyang)
|
2025/11
|
49
|
42
|
27
|
31
|
34
|
29
|
47
|
13
|
11
|
18
|
41
|
54
|
45
|
49
|
55
|
65
|
67
|
29
|
34
|
45
|
54
|
63
|
76
|
64
|
59
|
66
|
81
|
86
|
80
|
77
|
|
|
2025/10
|
65
|
56
|
35
|
51
|
46
|
28
|
52
|
57
|
46
|
54
|
57
|
106
|
78
|
51
|
63
|
49
|
45
|
19
|
10
|
10
|
10
|
24
|
39
|
42
|
55
|
68
|
71
|
64
|
74
|
88
|
61
|
|
2025/09
|
25
|
28
|
33
|
39
|
43
|
39
|
43
|
38
|
24
|
28
|
23
|
25
|
27
|
35
|
41
|
41
|
35
|
36
|
30
|
22
|
25
|
22
|
27
|
12
|
16
|
24
|
40
|
52
|
64
|
48
|
|
|
2025/08
|
36
|
41
|
24
|
23
|
26
|
16
|
17
|
21
|
27
|
30
|
36
|
47
|
35
|
24
|
14
|
27
|
28
|
23
|
14
|
21
|
19
|
23
|
29
|
24
|
24
|
23
|
35
|
32
|
30
|
25
|
26
|
|
2025/07
|
17
|
16
|
23
|
31
|
42
|
44
|
50
|
41
|
39
|
28
|
27
|
29
|
31
|
35
|
26
|
26
|
30
|
40
|
38
|
33
|
23
|
14
|
16
|
26
|
26
|
29
|
21
|
25
|
25
|
24
|
26
|
|
2025/06
|
18
|
23
|
37
|
47
|
51
|
43
|
32
|
27
|
37
|
41
|
40
|
24
|
35
|
20
|
16
|
25
|
16
|
13
|
17
|
22
|
24
|
15
|
27
|
21
|
39
|
34
|
17
|
17
|
19
|
21
|
|
|
2025/05
|
53
|
63
|
67
|
59
|
46
|
53
|
73
|
48
|
33
|
54
|
52
|
75
|
63
|
51
|
64
|
27
|
31
|
27
|
29
|
21
|
24
|
25
|
27
|
54
|
53
|
53
|
54
|
19
|
22
|
32
|
17
|
|
2025/04
|
61
|
66
|
72
|
118
|
105
|
89
|
83
|
76
|
78
|
63
|
59
|
222
|
225
|
142
|
94
|
76
|
82
|
69
|
32
|
32
|
36
|
37
|
55
|
32
|
29
|
41
|
28
|
43
|
64
|
53
|
|
|
2025/03
|
34
|
38
|
18
|
27
|
39
|
50
|
59
|
51
|
51
|
46
|
54
|
47
|
56
|
25
|
22
|
48
|
44
|
43
|
45
|
54
|
65
|
66
|
83
|
84
|
84
|
81
|
79
|
62
|
49
|
22
|
48
|
|
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
|
|
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