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
14 Mar
Sat
15 Mar
Sun
16 Mar
Mon
17 Mar
Tue
18 Mar
Wed
19 Mar
Thu
20 Mar
Real-time AQI (Monitoring Station in Changsha)
经开区环保局
123
PM2.5
10
PM10
29
O3
0.6
CO
5
SO2
24
NO2
高开区环保局
146
PM2.5
8
PM10
42
O3
0.7
CO
3
SO2
11
NO2
马坡岭
167
PM2.5
16
PM10
29
O3
0.5
CO
3
SO2
20
NO2
伍家岭
123
PM2.5
9
PM10
36
O3
0.6
CO
2
SO2
15
NO2
火车新站
187
PM2.5
18
PM10
34
O3
0.6
CO
5
SO2
16
NO2
天心区环保局
133
PM2.5
9
PM10
34
O3
0.6
CO
2
SO2
25
NO2
湖南中医药大学
1913
PM2.5
13
PM10
40
O3
0.4
CO
2
SO2
10
NO2
沙坪
133
PM2.5
7
PM10
41
O3
0.8
CO
5
SO2
12
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
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4
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5
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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