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
26 Apr
Sat
27 Apr
Sun
28 Apr
Mon
29 Apr
Tue
30 Apr
Wed
1 May
Thu
2 May
Real-time AQI (Monitoring Station in Changde)
武陵区永安
3918
PM2.5
39
PM10
66
O3
0.4
CO
6
SO2
7
NO2
武陵区长庚
4627
PM2.5
46
PM10
58
O3
0.6
CO
9
SO2
9
NO2
Air quality in the last 12 months (Changde)
|
2024/02
|
74
|
36
|
56
|
73
|
112
|
109
|
111
|
113
|
121
|
113
|
116
|
100
|
80
|
54
|
68
|
68
|
55
|
63
|
190
|
17
|
23
|
31
|
42
|
48
|
51
|
76
|
86
|
100
|
87
|
||
|
2024/01
|
108
|
101
|
55
|
49
|
90
|
122
|
178
|
121
|
164
|
149
|
141
|
84
|
96
|
168
|
113
|
104
|
71
|
49
|
27
|
46
|
82
|
63
|
45
|
54
|
58
|
74
|
91
|
105
|
100
|
101
|
95
|
|
2023/12
|
50
|
62
|
85
|
61
|
52
|
79
|
58
|
59
|
78
|
59
|
21
|
49
|
65
|
15
|
29
|
43
|
48
|
47
|
63
|
83
|
93
|
69
|
78
|
94
|
87
|
97
|
174
|
245
|
248
|
173
|
131
|
|
2023/11
|
51
|
55
|
94
|
59
|
48
|
33
|
43
|
49
|
44
|
77
|
33
|
47
|
67
|
51
|
56
|
48
|
56
|
65
|
55
|
79
|
71
|
70
|
97
|
72
|
62
|
66
|
70
|
93
|
103
|
59
|
|
|
2023/10
|
30
|
25
|
21
|
29
|
30
|
36
|
26
|
37
|
46
|
44
|
49
|
69
|
49
|
40
|
51
|
67
|
79
|
93
|
65
|
28
|
50
|
57
|
71
|
93
|
85
|
41
|
37
|
38
|
52
|
47
|
45
|
|
2023/09
|
55
|
48
|
47
|
52
|
53
|
38
|
39
|
44
|
53
|
57
|
48
|
29
|
31
|
34
|
31
|
39
|
44
|
43
|
34
|
32
|
28
|
22
|
19
|
16
|
20
|
25
|
35
|
38
|
47
|
27
|
|
|
2023/08
|
26
|
22
|
29
|
34
|
31
|
33
|
24
|
31
|
37
|
41
|
45
|
50
|
33
|
33
|
40
|
41
|
41
|
53
|
58
|
56
|
46
|
31
|
41
|
52
|
68
|
51
|
29
|
30
|
38
|
42
|
50
|
|
2023/07
|
39
|
37
|
27
|
25
|
19
|
21
|
23
|
22
|
21
|
22
|
28
|
26
|
28
|
26
|
34
|
49
|
51
|
42
|
27
|
25
|
18
|
17
|
25
|
26
|
22
|
23
|
33
|
29
|
25
|
24
|
21
|
|
2023/06
|
38
|
50
|
46
|
40
|
28
|
28
|
32
|
47
|
41
|
46
|
49
|
41
|
42
|
58
|
52
|
38
|
39
|
27
|
23
|
23
|
31
|
36
|
33
|
29
|
34
|
38
|
26
|
22
|
27
|
24
|
|
|
2023/05
|
72
|
65
|
56
|
35
|
30
|
24
|
38
|
39
|
53
|
35
|
44
|
42
|
46
|
60
|
62
|
60
|
31
|
50
|
75
|
60
|
46
|
35
|
39
|
42
|
47
|
30
|
45
|
38
|
35
|
31
|
33
|
|
2023/04
|
55
|
54
|
31
|
24
|
28
|
33
|
61
|
80
|
69
|
66
|
65
|
234
|
136
|
84
|
64
|
67
|
63
|
37
|
62
|
69
|
70
|
26
|
20
|
21
|
27
|
33
|
46
|
52
|
115
|
109
|
|
|
2023/03
|
109
|
114
|
103
|
80
|
57
|
61
|
73
|
53
|
50
|
61
|
47
|
133
|
98
|
63
|
74
|
86
|
28
|
35
|
35
|
29
|
26
|
39
|
66
|
119
|
85
|
72
|
83
|
62
|
54
|
47
|
52
|
|
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