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
23 Apr
Fri
24 Apr
Sat
25 Apr
Sun
26 Apr
Mon
27 Apr
Tue
28 Apr
Wed
29 Apr
Real-time AQI (Monitoring Station in Changde)
市二中
189
PM2.5
18
PM10
12
O3
0.7
CO
8
SO2
16
NO2
武陵区永安
153
PM2.5
15
PM10
20
O3
0.6
CO
6
SO2
10
NO2
鼎城区玉霞
136
PM2.5
13
PM10
17
O3
0.6
CO
7
SO2
8
NO2
武陵区长庚
2210
PM2.5
22
PM10
12
O3
0.7
CO
14
SO2
12
NO2
Air quality in the last 12 months (Changde)
|
2026/03
|
18
|
24
|
35
|
39
|
58
|
78
|
90
|
78
|
74
|
48
|
37
|
100
|
79
|
75
|
44
|
19
|
26
|
34
|
55
|
82
|
55
|
45
|
33
|
61
|
60
|
35
|
33
|
36
|
30
|
33
|
44
|
|
2026/02
|
62
|
75
|
103
|
130
|
142
|
165
|
94
|
84
|
76
|
64
|
55
|
86
|
83
|
74
|
90
|
28
|
59
|
76
|
69
|
45
|
43
|
71
|
70
|
64
|
45
|
29
|
34
|
50
|
|||
|
2026/01
|
50
|
81
|
91
|
65
|
71
|
73
|
63
|
74
|
68
|
83
|
109
|
109
|
75
|
100
|
129
|
154
|
169
|
194
|
38
|
63
|
55
|
64
|
80
|
97
|
82
|
141
|
171
|
120
|
74
|
64
|
67
|
|
2025/12
|
106
|
129
|
76
|
62
|
57
|
62
|
112
|
112
|
130
|
163
|
178
|
166
|
38
|
51
|
57
|
74
|
117
|
106
|
73
|
94
|
40
|
94
|
41
|
58
|
69
|
75
|
92
|
88
|
131
|
163
|
121
|
|
2025/11
|
43
|
35
|
55
|
30
|
52
|
48
|
26
|
17
|
26
|
37
|
57
|
52
|
60
|
68
|
69
|
74
|
50
|
29
|
30
|
40
|
52
|
63
|
61
|
43
|
69
|
61
|
80
|
64
|
53
|
98
|
|
|
2025/10
|
53
|
49
|
22
|
27
|
54
|
74
|
62
|
60
|
74
|
73
|
70
|
59
|
20
|
26
|
49
|
19
|
17
|
12
|
17
|
11
|
21
|
41
|
48
|
54
|
77
|
48
|
52
|
51
|
73
|
57
|
53
|
|
2025/09
|
24
|
21
|
33
|
45
|
48
|
32
|
41
|
49
|
22
|
23
|
25
|
25
|
21
|
23
|
34
|
39
|
52
|
17
|
11
|
18
|
33
|
27
|
15
|
14
|
21
|
18
|
22
|
34
|
25
|
35
|
|
|
2025/08
|
45
|
43
|
45
|
45
|
32
|
35
|
18
|
16
|
24
|
23
|
18
|
18
|
11
|
19
|
16
|
22
|
29
|
35
|
25
|
20
|
15
|
15
|
22
|
25
|
21
|
29
|
27
|
37
|
44
|
33
|
20
|
|
2025/07
|
20
|
15
|
16
|
18
|
24
|
44
|
45
|
41
|
37
|
24
|
46
|
40
|
31
|
34
|
29
|
22
|
37
|
25
|
34
|
33
|
24
|
12
|
12
|
15
|
22
|
33
|
26
|
24
|
27
|
30
|
27
|
|
2025/06
|
8
|
38
|
37
|
45
|
50
|
44
|
32
|
28
|
31
|
34
|
30
|
30
|
28
|
24
|
31
|
37
|
28
|
23
|
16
|
12
|
13
|
16
|
15
|
22
|
29
|
12
|
29
|
15
|
17
|
22
|
|
|
2025/05
|
48
|
65
|
69
|
56
|
55
|
87
|
120
|
32
|
41
|
45
|
37
|
51
|
59
|
96
|
55
|
31
|
48
|
75
|
53
|
40
|
25
|
15
|
45
|
68
|
66
|
46
|
62
|
34
|
35
|
36
|
34
|
|
2025/04
|
54
|
59
|
64
|
67
|
69
|
74
|
71
|
75
|
63
|
54
|
63
|
290
|
189
|
144
|
109
|
87
|
70
|
75
|
42
|
68
|
53
|
53
|
66
|
51
|
60
|
58
|
45
|
62
|
62
|
27
|
|
|
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