Air Quality
Excellent
No health implications.
6
PM2.5
19
PM10
32
O3
0.5
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jun
47
Excellent
Sat
20 Jun
62
Good
Sun
21 Jun
62
Good
Mon
22 Jun
46
Excellent
Tue
23 Jun
49
Excellent
Wed
24 Jun
50
Excellent
Thu
25 Jun
43
Excellent
Air quality in the last 12 months (Changsha County)
|
2026/05
|
39
|
35
|
38
|
40
|
46
|
43
|
44
|
54
|
52
|
51
|
47
|
52
|
25
|
23
|
38
|
23
|
20
|
21
|
15
|
28
|
34
|
25
|
24
|
27
|
29
|
29
|
29
|
33
|
48
|
46
|
66
|
|
2026/04
|
53
|
38
|
27
|
45
|
64
|
44
|
65
|
60
|
46
|
38
|
32
|
38
|
35
|
25
|
27
|
26
|
43
|
59
|
53
|
53
|
17
|
20
|
32
|
40
|
50
|
53
|
62
|
26
|
28
|
33
|
|
|
2026/03
|
13
|
25
|
46
|
52
|
50
|
73
|
71
|
46
|
60
|
67
|
46
|
67
|
46
|
53
|
93
|
13
|
21
|
24
|
33
|
38
|
34
|
32
|
24
|
45
|
63
|
31
|
59
|
55
|
53
|
33
|
36
|
|
2026/02
|
42
|
60
|
66
|
70
|
89
|
98
|
68
|
64
|
56
|
55
|
49
|
61
|
58
|
45
|
60
|
25
|
74
|
46
|
50
|
38
|
39
|
53
|
48
|
37
|
35
|
23
|
26
|
27
|
|||
|
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
|
|
|
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