Hunan - China   2025-05-21   Wednesday   26.90N, 112.61E

Hengyang

Hunan - China
2025-05-21

Air Quality

Excellent

No health implications.

11

PM2.5

21

PM10

78

O3

0.5

CO

6

SO2

3

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

21 May

39 Excellent

Thu

22 May

42 Excellent

Fri

23 May

57 Good

Sat

24 May

66 Good

Sun

25 May

64 Good

Mon

26 May

85 Good

Tue

27 May

31 Excellent

Real-time AQI (Monitoring Station in Hengyang)

原169医院

26

12

PM2.5

23

PM10

83

O3

0.4

CO

3

SO2

3

NO2

衡阳化工总厂

25

10

PM2.5

18

PM10

77

O3

0.4

CO

5

SO2

1

NO2

市监测站

24

10

PM2.5

15

PM10

74

O3

0.3

CO

9

SO2

5

NO2

真空机电公司

24

10

PM2.5

16

PM10

75

O3

0.4

CO

5

SO2

2

NO2

师范学院

33

12

PM2.5

33

PM10

79

O3

0.6

CO

8

SO2

4

NO2

Monthly Average AQI (Hengyang)

2020/05 - 2025/04

Air quality in the last 12 months (Hengyang)

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
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
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
Air quality source: CNEMC

*: primary pollution