Air Quality
Excellent
No health implications.
5
PM2.5
9
PM10
53
O3
0.6
CO
15
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Jul
53
Good
Mon
14 Jul
76
Good
Tue
15 Jul
80
Good
Wed
16 Jul
83
Good
Thu
17 Jul
65
Good
Fri
18 Jul
19
Excellent
Sat
19 Jul
46
Excellent
Air quality in the last 12 months (Duchang)
|
2025/06
|
16
|
9
|
21
|
28
|
24
|
24
|
23
|
18
|
18
|
21
|
14
|
16
|
25
|
17
|
13
|
34
|
19
|
10
|
13
|
13
|
13
|
12
|
9
|
16
|
18
|
23
|
19
|
15
|
13
|
17
|
|
|
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
|
|
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