Air Quality
Excellent
No health implications.
16
PM2.5
30
PM10
51
O3
0.6
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Dec
92
Good
Sun
14 Dec
57
Good
Mon
15 Dec
68
Good
Tue
16 Dec
89
Good
Wed
17 Dec
104
Light
Thu
18 Dec
117
Light
Fri
19 Dec
26
Excellent
Air quality in the last 12 months (Hengyang County)
|
2025/11
|
46
|
38
|
25
|
30
|
36
|
29
|
54
|
13
|
10
|
15
|
40
|
51
|
42
|
48
|
57
|
69
|
72
|
28
|
34
|
47
|
53
|
63
|
82
|
71
|
58
|
68
|
82
|
89
|
87
|
79
|
|
|
2025/10
|
61
|
56
|
36
|
46
|
48
|
29
|
51
|
60
|
45
|
48
|
57
|
109
|
82
|
49
|
62
|
49
|
45
|
17
|
8
|
8
|
10
|
27
|
36
|
41
|
58
|
65
|
62
|
61
|
77
|
88
|
58
|
|
2025/09
|
24
|
28
|
29
|
40
|
41
|
41
|
46
|
39
|
23
|
31
|
25
|
21
|
32
|
39
|
39
|
40
|
35
|
38
|
28
|
20
|
23
|
17
|
21
|
9
|
9
|
17
|
36
|
51
|
56
|
45
|
|
|
2025/08
|
35
|
41
|
28
|
24
|
29
|
17
|
14
|
21
|
26
|
29
|
34
|
39
|
36
|
22
|
12
|
21
|
33
|
24
|
13
|
17
|
17
|
19
|
25
|
27
|
24
|
24
|
33
|
34
|
34
|
27
|
25
|
|
2025/07
|
12
|
13
|
18
|
23
|
38
|
42
|
45
|
39
|
39
|
23
|
23
|
26
|
24
|
28
|
22
|
21
|
23
|
29
|
30
|
22
|
15
|
12
|
15
|
26
|
23
|
28
|
19
|
21
|
24
|
23
|
23
|
|
2025/06
|
18
|
23
|
37
|
47
|
49
|
43
|
32
|
24
|
34
|
39
|
35
|
24
|
30
|
19
|
17
|
25
|
14
|
10
|
16
|
18
|
25
|
14
|
21
|
16
|
36
|
26
|
15
|
16
|
19
|
17
|
|
|
2025/05
|
49
|
57
|
62
|
56
|
45
|
53
|
72
|
50
|
30
|
53
|
52
|
68
|
70
|
54
|
64
|
28
|
29
|
24
|
27
|
19
|
22
|
23
|
25
|
53
|
53
|
46
|
48
|
22
|
20
|
30
|
20
|
|
2025/04
|
55
|
56
|
62
|
128
|
112
|
84
|
77
|
76
|
76
|
67
|
58
|
232
|
166
|
134
|
90
|
76
|
76
|
67
|
32
|
35
|
34
|
37
|
48
|
32
|
28
|
40
|
28
|
40
|
57
|
48
|
|
|
2025/03
|
32
|
36
|
17
|
21
|
29
|
37
|
44
|
42
|
43
|
36
|
49
|
47
|
50
|
26
|
21
|
43
|
38
|
39
|
44
|
49
|
53
|
61
|
72
|
73
|
70
|
77
|
79
|
64
|
51
|
20
|
42
|
|
2025/02
|
38
|
25
|
50
|
55
|
68
|
68
|
60
|
51
|
43
|
58
|
69
|
73
|
94
|
105
|
53
|
40
|
40
|
39
|
28
|
24
|
70
|
34
|
39
|
67
|
81
|
75
|
51
|
37
|
|||
|
2025/01
|
133
|
119
|
127
|
157
|
135
|
92
|
87
|
79
|
51
|
51
|
58
|
73
|
73
|
71
|
75
|
60
|
73
|
85
|
104
|
95
|
95
|
101
|
147
|
187
|
29
|
31
|
55
|
76
|
292
|
154
|
77
|
|
2024/12
|
66
|
71
|
88
|
113
|
39
|
36
|
42
|
55
|
81
|
62
|
42
|
64
|
79
|
54
|
58
|
67
|
75
|
73
|
91
|
116
|
109
|
97
|
81
|
93
|
110
|
105
|
111
|
118
|
97
|
116
|
110
|
|
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