Air Quality
Excellent
No health implications.
11
PM2.5
13
PM10
40
O3
0.5
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Mar
46
Excellent
Wed
5 Mar
56
Good
Thu
6 Mar
56
Good
Fri
7 Mar
61
Good
Sat
8 Mar
64
Good
Sun
9 Mar
44
Excellent
Mon
10 Mar
33
Excellent
Air quality in the last 12 months (Hengyang County)
|
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
|
|
2024/06
|
23
|
24
|
42
|
23
|
16
|
29
|
37
|
38
|
36
|
23
|
23
|
24
|
19
|
21
|
23
|
24
|
15
|
17
|
15
|
24
|
23
|
25
|
22
|
21
|
12
|
15
|
28
|
29
|
21
|
20
|
|
|
2024/05
|
23
|
32
|
28
|
13
|
28
|
63
|
114
|
75
|
71
|
77
|
46
|
71
|
73
|
62
|
60
|
67
|
59
|
47
|
27
|
22
|
41
|
46
|
38
|
39
|
40
|
33
|
19
|
31
|
28
|
16
|
20
|
|
2024/04
|
40
|
48
|
24
|
29
|
28
|
28
|
36
|
40
|
42
|
44
|
50
|
48
|
49
|
54
|
57
|
47
|
25
|
38
|
28
|
25
|
39
|
50
|
40
|
46
|
33
|
35
|
40
|
52
|
46
|
13
|
|
|
2024/03
|
92
|
65
|
55
|
49
|
37
|
71
|
50
|
53
|
53
|
54
|
48
|
53
|
49
|
38
|
44
|
34
|
34
|
17
|
45
|
59
|
74
|
49
|
28
|
37
|
25
|
24
|
47
|
29
|
43
|
48
|
35
|
|
2024/02
|
31
|
14
|
15
|
27
|
54
|
27
|
46
|
79
|
110
|
224
|
121
|
107
|
57
|
48
|
47
|
43
|
41
|
30
|
49
|
48
|
17
|
23
|
31
|
39
|
69
|
49
|
80
|
53
|
63
|
||
|
1
|
2
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3
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4
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5
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6
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7
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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