Air Quality
Excellent
No health implications.
18
PM2.5
27
PM10
80
O3
0.5
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Jul
52
Good
Sun
13 Jul
55
Good
Mon
14 Jul
71
Good
Tue
15 Jul
56
Good
Wed
16 Jul
67
Good
Thu
17 Jul
27
Excellent
Fri
18 Jul
21
Excellent
Air quality in the last 12 months (Hengyang County)
|
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
|
|
2024/11
|
54
|
83
|
75
|
74
|
83
|
62
|
62
|
53
|
63
|
75
|
60
|
65
|
68
|
84
|
76
|
80
|
22
|
13
|
16
|
27
|
35
|
41
|
51
|
66
|
29
|
24
|
36
|
43
|
50
|
59
|
|
|
2024/10
|
29
|
45
|
55
|
52
|
51
|
68
|
59
|
48
|
47
|
60
|
70
|
70
|
150
|
69
|
30
|
35
|
53
|
44
|
23
|
23
|
28
|
18
|
28
|
39
|
52
|
56
|
47
|
62
|
61
|
53
|
54
|
|
2024/09
|
44
|
48
|
51
|
52
|
46
|
44
|
33
|
31
|
47
|
39
|
42
|
34
|
24
|
41
|
40
|
38
|
42
|
43
|
39
|
38
|
29
|
27
|
33
|
44
|
67
|
69
|
62
|
58
|
56
|
55
|
|
|
2024/08
|
15
|
18
|
21
|
26
|
27
|
27
|
30
|
28
|
27
|
32
|
29
|
24
|
24
|
29
|
34
|
30
|
35
|
54
|
29
|
41
|
41
|
22
|
22
|
24
|
38
|
38
|
38
|
24
|
28
|
36
|
46
|
|
2024/07
|
23
|
16
|
23
|
19
|
20
|
18
|
21
|
20
|
22
|
26
|
24
|
25
|
26
|
20
|
29
|
24
|
16
|
16
|
15
|
20
|
23
|
21
|
21
|
28
|
37
|
30
|
23
|
14
|
15
|
15
|
17
|
|
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