Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Feb
Sun
23 Feb
Mon
24 Feb
Tue
25 Feb
Wed
26 Feb
Thu
27 Feb
Fri
28 Feb
Real-time AQI (Monitoring Station in Changsha)
经开区环保局
2210
PM2.5
19
PM10
68
O3
0.4
CO
3
SO2
26
NO2
高开区环保局
2618
PM2.5
26
PM10
65
O3
0.6
CO
3
SO2
10
NO2
马坡岭
238
PM2.5
17
PM10
71
O3
0.4
CO
2
SO2
20
NO2
湖南师范大学
2213
PM2.5
22
PM10
58
O3
0.5
CO
4
SO2
14
NO2
雨花区环保局
2310
PM2.5
22
PM10
71
O3
0.4
CO
4
SO2
15
NO2
伍家岭
2312
PM2.5
23
PM10
59
O3
0.5
CO
3
SO2
20
NO2
火车新站
2517
PM2.5
22
PM10
71
O3
0.7
CO
4
SO2
17
NO2
天心区环保局
2611
PM2.5
26
PM10
73
O3
0.5
CO
2
SO2
21
NO2
Air quality in the last 12 months (Changsha)
|
2025/01
|
159
|
161
|
194
|
232
|
76
|
86
|
93
|
72
|
68
|
58
|
66
|
81
|
84
|
85
|
87
|
64
|
73
|
80
|
119
|
132
|
109
|
102
|
263
|
180
|
18
|
39
|
66
|
105
|
253
|
83
|
65
|
|
2024/12
|
64
|
73
|
140
|
138
|
52
|
66
|
69
|
104
|
79
|
65
|
71
|
101
|
109
|
60
|
62
|
77
|
71
|
94
|
90
|
114
|
110
|
81
|
75
|
110
|
131
|
139
|
185
|
97
|
90
|
125
|
134
|
|
2024/11
|
98
|
146
|
135
|
114
|
111
|
96
|
71
|
65
|
107
|
95
|
91
|
98
|
98
|
135
|
150
|
134
|
22
|
17
|
34
|
42
|
51
|
68
|
75
|
96
|
39
|
33
|
44
|
53
|
60
|
61
|
|
|
2024/10
|
37
|
61
|
60
|
55
|
56
|
90
|
61
|
45
|
61
|
80
|
85
|
120
|
187
|
55
|
77
|
86
|
54
|
44
|
27
|
45
|
36
|
19
|
41
|
50
|
71
|
77
|
90
|
149
|
108
|
74
|
72
|
|
2024/09
|
50
|
47
|
60
|
57
|
46
|
54
|
50
|
36
|
42
|
41
|
48
|
34
|
33
|
43
|
51
|
48
|
52
|
52
|
44
|
52
|
46
|
42
|
45
|
56
|
66
|
77
|
92
|
56
|
41
|
53
|
|
|
2024/08
|
20
|
25
|
25
|
33
|
35
|
32
|
34
|
36
|
36
|
41
|
40
|
37
|
32
|
39
|
43
|
30
|
41
|
25
|
34
|
40
|
45
|
38
|
32
|
32
|
38
|
41
|
45
|
31
|
32
|
47
|
50
|
|
2024/07
|
25
|
24
|
29
|
23
|
26
|
25
|
29
|
28
|
29
|
33
|
35
|
36
|
36
|
28
|
34
|
31
|
25
|
25
|
21
|
26
|
29
|
27
|
32
|
37
|
41
|
37
|
27
|
10
|
16
|
15
|
21
|
|
2024/06
|
27
|
36
|
49
|
25
|
27
|
37
|
37
|
43
|
30
|
18
|
23
|
23
|
26
|
25
|
28
|
27
|
19
|
24
|
18
|
27
|
30
|
29
|
25
|
16
|
15
|
14
|
23
|
29
|
27
|
14
|
|
|
2024/05
|
40
|
49
|
30
|
18
|
40
|
39
|
53
|
72
|
56
|
64
|
56
|
106
|
91
|
64
|
64
|
72
|
64
|
54
|
51
|
35
|
56
|
31
|
38
|
46
|
37
|
38
|
26
|
31
|
35
|
18
|
42
|
|
2024/04
|
36
|
27
|
50
|
65
|
76
|
68
|
72
|
62
|
45
|
47
|
63
|
51
|
45
|
42
|
64
|
35
|
41
|
47
|
30
|
32
|
54
|
67
|
42
|
56
|
62
|
57
|
53
|
46
|
37
|
15
|
|
|
2024/03
|
100
|
65
|
49
|
39
|
81
|
119
|
79
|
77
|
75
|
75
|
82
|
68
|
61
|
91
|
71
|
74
|
76
|
32
|
57
|
77
|
78
|
58
|
36
|
60
|
31
|
38
|
50
|
47
|
46
|
54
|
41
|
|
2024/02
|
40
|
21
|
30
|
64
|
72
|
51
|
102
|
119
|
165
|
292
|
122
|
83
|
57
|
56
|
67
|
44
|
40
|
38
|
76
|
21
|
16
|
39
|
49
|
51
|
70
|
78
|
85
|
77
|
77
|
||
|
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
*: primary pollution