Air Quality
Excellent
No health implications.
4
PM2.5
9
PM10
57
O3
0.6
CO
8
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jun
44
Excellent
Mon
16 Jun
79
Good
Tue
17 Jun
88
Good
Wed
18 Jun
74
Good
Thu
19 Jun
47
Excellent
Fri
20 Jun
50
Excellent
Sat
21 Jun
49
Excellent
Air quality in the last 12 months (Duchang)
|
2025/05
|
45
|
51
|
59
|
52
|
21
|
69
|
127
|
29
|
27
|
53
|
45
|
51
|
42
|
43
|
55
|
28
|
31
|
58
|
30
|
21
|
17
|
19
|
20
|
61
|
64
|
62
|
59
|
34
|
24
|
18
|
16
|
|
2025/04
|
56
|
55
|
61
|
56
|
69
|
62
|
60
|
57
|
65
|
54
|
40
|
213
|
147
|
127
|
54
|
55
|
65
|
65
|
55
|
45
|
20
|
22
|
54
|
36
|
38
|
27
|
28
|
51
|
59
|
54
|
|
|
2025/03
|
40
|
38
|
22
|
21
|
32
|
54
|
67
|
63
|
54
|
45
|
40
|
37
|
37
|
35
|
18
|
48
|
35
|
46
|
48
|
50
|
47
|
52
|
56
|
63
|
58
|
68
|
68
|
64
|
63
|
65
|
55
|
|
2025/02
|
33
|
19
|
48
|
54
|
50
|
43
|
75
|
43
|
31
|
39
|
57
|
68
|
80
|
61
|
50
|
54
|
53
|
32
|
41
|
35
|
30
|
27
|
69
|
93
|
72
|
72
|
57
|
38
|
|||
|
2025/01
|
70
|
72
|
116
|
93
|
95
|
74
|
74
|
63
|
56
|
39
|
53
|
62
|
60
|
58
|
84
|
52
|
54
|
52
|
60
|
69
|
56
|
59
|
87
|
84
|
36
|
25
|
57
|
70
|
118
|
55
|
40
|
|
2024/12
|
47
|
50
|
74
|
83
|
40
|
59
|
61
|
73
|
57
|
52
|
34
|
91
|
100
|
61
|
55
|
55
|
54
|
91
|
44
|
57
|
84
|
63
|
61
|
69
|
79
|
84
|
105
|
85
|
59
|
77
|
79
|
|
2024/11
|
36
|
48
|
43
|
71
|
62
|
48
|
41
|
39
|
42
|
40
|
41
|
46
|
43
|
36
|
19
|
38
|
26
|
20
|
30
|
36
|
36
|
46
|
68
|
54
|
40
|
38
|
43
|
56
|
53
|
45
|
|
|
2024/10
|
35
|
53
|
39
|
33
|
36
|
32
|
18
|
27
|
47
|
58
|
56
|
59
|
73
|
72
|
42
|
20
|
24
|
41
|
31
|
25
|
38
|
30
|
47
|
34
|
47
|
36
|
15
|
51
|
67
|
50
|
40
|
|
2024/09
|
37
|
44
|
42
|
43
|
40
|
29
|
30
|
40
|
37
|
34
|
26
|
10
|
23
|
34
|
30
|
21
|
26
|
27
|
26
|
17
|
28
|
38
|
32
|
31
|
45
|
48
|
53
|
17
|
31
|
35
|
|
|
2024/08
|
14
|
19
|
27
|
28
|
36
|
27
|
34
|
35
|
36
|
36
|
33
|
58
|
41
|
18
|
22
|
30
|
40
|
26
|
11
|
21
|
23
|
28
|
33
|
31
|
35
|
42
|
36
|
14
|
20
|
32
|
35
|
|
2024/07
|
16
|
15
|
18
|
16
|
23
|
22
|
19
|
20
|
25
|
27
|
27
|
28
|
25
|
25
|
27
|
24
|
18
|
17
|
16
|
16
|
25
|
26
|
30
|
33
|
28
|
16
|
8
|
9
|
16
|
18
|
20
|
|
2024/06
|
14
|
29
|
20
|
30
|
22
|
26
|
31
|
27
|
28
|
21
|
21
|
23
|
21
|
19
|
18
|
19
|
19
|
11
|
15
|
27
|
24
|
24
|
13
|
11
|
10
|
10
|
12
|
15
|
18
|
16
|
|
|
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