Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
23
O3
0.6
CO
3
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jan
78
Good
Sat
31 Jan
62
Good
Sun
1 Feb
62
Good
Mon
2 Feb
70
Good
Tue
3 Feb
77
Good
Wed
4 Feb
72
Good
Thu
5 Feb
49
Excellent
Changsha County Air quality rank
Air quality in the last 12 months (Changsha County)
|
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
|
|||
|
2025/01
|
144
|
154
|
199
|
236
|
76
|
72
|
94
|
71
|
71
|
60
|
64
|
75
|
83
|
86
|
88
|
64
|
69
|
76
|
114
|
122
|
88
|
89
|
261
|
171
|
17
|
38
|
69
|
88
|
247
|
66
|
61
|
|
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