Air Quality
Excellent
No health implications.
12
PM2.5
21
PM10
51
O3
0.3
CO
2
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Feb
130
Light
Tue
17 Feb
242
Heavy
Wed
18 Feb
115
Light
Thu
19 Feb
93
Good
Fri
20 Feb
82
Good
Sat
21 Feb
86
Good
Sun
22 Feb
35
Excellent
Changsha County Air quality rank
Air quality in the last 12 months (Changsha County)
|
2026/01
|
36
|
59
|
67
|
49
|
73
|
95
|
77
|
59
|
65
|
78
|
81
|
72
|
94
|
73
|
96
|
130
|
179
|
153
|
24
|
37
|
66
|
66
|
85
|
66
|
79
|
140
|
131
|
101
|
67
|
32
|
46
|
|
2025/12
|
127
|
127
|
74
|
65
|
102
|
108
|
124
|
154
|
147
|
130
|
156
|
184
|
31
|
55
|
58
|
63
|
107
|
148
|
86
|
132
|
105
|
67
|
53
|
86
|
73
|
60
|
73
|
82
|
96
|
185
|
158
|
|
2025/11
|
78
|
62
|
53
|
47
|
54
|
38
|
68
|
11
|
24
|
27
|
62
|
60
|
47
|
62
|
75
|
65
|
69
|
30
|
32
|
50
|
60
|
65
|
74
|
67
|
69
|
70
|
95
|
87
|
69
|
71
|
|
|
2025/10
|
51
|
51
|
46
|
44
|
51
|
39
|
59
|
76
|
55
|
58
|
133
|
151
|
94
|
77
|
59
|
41
|
31
|
11
|
9
|
10
|
21
|
32
|
40
|
47
|
83
|
85
|
79
|
74
|
79
|
123
|
75
|
|
2025/09
|
34
|
25
|
33
|
37
|
40
|
47
|
48
|
27
|
39
|
35
|
33
|
29
|
37
|
38
|
34
|
40
|
40
|
33
|
18
|
28
|
31
|
30
|
33
|
18
|
20
|
30
|
41
|
46
|
49
|
46
|
|
|
2025/08
|
40
|
53
|
37
|
25
|
32
|
19
|
17
|
20
|
31
|
33
|
41
|
37
|
29
|
25
|
16
|
25
|
27
|
33
|
15
|
19
|
22
|
21
|
31
|
26
|
22
|
27
|
36
|
27
|
30
|
46
|
31
|
|
2025/07
|
19
|
15
|
24
|
39
|
47
|
52
|
53
|
49
|
33
|
22
|
37
|
25
|
24
|
29
|
34
|
29
|
36
|
38
|
32
|
30
|
18
|
14
|
15
|
18
|
23
|
28
|
28
|
27
|
29
|
24
|
36
|
|
2025/06
|
17
|
26
|
43
|
56
|
48
|
43
|
32
|
31
|
40
|
38
|
20
|
19
|
28
|
21
|
19
|
29
|
17
|
15
|
16
|
19
|
23
|
16
|
20
|
19
|
29
|
43
|
25
|
18
|
16
|
20
|
|
|
2025/05
|
73
|
62
|
69
|
61
|
57
|
70
|
77
|
44
|
40
|
55
|
48
|
52
|
49
|
66
|
78
|
44
|
37
|
56
|
45
|
21
|
25
|
28
|
36
|
58
|
57
|
61
|
69
|
29
|
23
|
27
|
21
|
|
2025/04
|
66
|
66
|
61
|
70
|
75
|
84
|
80
|
76
|
82
|
54
|
57
|
208
|
150
|
148
|
79
|
59
|
75
|
73
|
27
|
75
|
37
|
51
|
71
|
42
|
42
|
41
|
50
|
62
|
71
|
47
|
|
|
2025/03
|
42
|
40
|
12
|
38
|
45
|
62
|
52
|
48
|
69
|
58
|
44
|
74
|
70
|
19
|
34
|
52
|
47
|
53
|
48
|
52
|
56
|
61
|
87
|
85
|
70
|
81
|
88
|
63
|
65
|
34
|
64
|
|
2025/02
|
57
|
46
|
61
|
61
|
68
|
66
|
82
|
46
|
50
|
56
|
72
|
86
|
111
|
106
|
62
|
75
|
60
|
45
|
49
|
57
|
121
|
36
|
64
|
88
|
95
|
77
|
64
|
59
|
|||
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1
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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
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9
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10
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11
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12
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13
|
14
|
15
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16
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17
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18
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19
|
20
|
21
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22
|
23
|
24
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25
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26
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27
|
28
|
29
|
30
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31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution