Air Quality
Excellent
No health implications.
27
PM2.5
41
PM10
97
O3
0.7
CO
9
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Apr
52
Good
Mon
22 Apr
52
Good
Tue
23 Apr
72
Good
Wed
24 Apr
64
Good
Thu
25 Apr
44
Excellent
Fri
26 Apr
49
Excellent
Air quality in the last 12 months (Duchang)
|
2024/02
|
19
|
16
|
13
|
18
|
54
|
39
|
63
|
73
|
94
|
115
|
84
|
54
|
34
|
36
|
33
|
22
|
27
|
32
|
38
|
28
|
14
|
19
|
30
|
35
|
50
|
71
|
67
|
47
|
56
|
||
|
2024/01
|
89
|
84
|
58
|
52
|
49
|
61
|
100
|
97
|
82
|
78
|
69
|
64
|
48
|
60
|
151
|
63
|
77
|
43
|
17
|
21
|
55
|
55
|
30
|
35
|
50
|
55
|
61
|
60
|
54
|
44
|
37
|
|
2023/12
|
46
|
41
|
53
|
57
|
62
|
64
|
58
|
49
|
33
|
47
|
19
|
23
|
37
|
38
|
20
|
35
|
34
|
25
|
37
|
54
|
77
|
37
|
33
|
60
|
58
|
53
|
57
|
99
|
134
|
164
|
109
|
|
2023/11
|
48
|
46
|
53
|
71
|
77
|
28
|
31
|
28
|
19
|
28
|
29
|
21
|
62
|
50
|
50
|
60
|
94
|
72
|
57
|
49
|
43
|
46
|
65
|
64
|
57
|
68
|
62
|
52
|
63
|
62
|
|
|
2023/10
|
26
|
32
|
33
|
25
|
42
|
37
|
19
|
19
|
29
|
49
|
62
|
64
|
60
|
73
|
66
|
53
|
55
|
58
|
52
|
35
|
41
|
42
|
47
|
51
|
66
|
62
|
73
|
78
|
75
|
81
|
59
|
|
2023/09
|
29
|
32
|
35
|
35
|
29
|
27
|
31
|
36
|
39
|
38
|
42
|
31
|
24
|
21
|
19
|
26
|
30
|
33
|
32
|
37
|
22
|
20
|
20
|
28
|
33
|
33
|
41
|
44
|
52
|
37
|
|
|
2023/08
|
19
|
22
|
26
|
31
|
40
|
40
|
29
|
30
|
34
|
42
|
39
|
42
|
29
|
29
|
35
|
34
|
47
|
39
|
40
|
32
|
36
|
25
|
36
|
37
|
46
|
45
|
35
|
19
|
24
|
26
|
27
|
|
2023/07
|
34
|
34
|
22
|
24
|
24
|
31
|
31
|
33
|
28
|
34
|
39
|
41
|
36
|
40
|
40
|
47
|
29
|
25
|
22
|
20
|
23
|
22
|
20
|
33
|
37
|
29
|
26
|
17
|
18
|
24
|
22
|
|
2023/06
|
36
|
53
|
61
|
68
|
54
|
32
|
41
|
36
|
44
|
42
|
51
|
53
|
43
|
51
|
54
|
41
|
30
|
24
|
23
|
20
|
26
|
35
|
28
|
23
|
21
|
22
|
24
|
24
|
24
|
28
|
|
|
2023/05
|
68
|
49
|
43
|
34
|
27
|
23
|
38
|
40
|
47
|
52
|
41
|
50
|
61
|
62
|
58
|
50
|
29
|
37
|
57
|
52
|
32
|
45
|
69
|
43
|
46
|
45
|
42
|
39
|
44
|
42
|
26
|
|
2023/04
|
46
|
50
|
31
|
24
|
25
|
27
|
54
|
56
|
59
|
63
|
60
|
94
|
51
|
28
|
90
|
75
|
71
|
45
|
37
|
47
|
48
|
40
|
21
|
16
|
27
|
29
|
35
|
36
|
112
|
100
|
|
|
2023/03
|
74
|
87
|
73
|
91
|
77
|
58
|
61
|
63
|
57
|
51
|
57
|
97
|
75
|
71
|
61
|
87
|
30
|
25
|
34
|
24
|
17
|
18
|
22
|
47
|
38
|
56
|
76
|
74
|
63
|
61
|
54
|
|
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