Air Quality
Excellent
No health implications.
25
PM2.5
31
PM10
114
O3
0.4
CO
9
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jul
56
Good
Tue
15 Jul
54
Good
Wed
16 Jul
58
Good
Thu
17 Jul
40
Excellent
Fri
18 Jul
39
Excellent
Sat
19 Jul
41
Excellent
Sun
20 Jul
46
Excellent
Air quality in the last 12 months (Dongchuan)
|
2025/06
|
17
|
20
|
23
|
25
|
29
|
35
|
36
|
34
|
39
|
34
|
30
|
39
|
47
|
41
|
19
|
27
|
22
|
15
|
15
|
16
|
19
|
14
|
21
|
14
|
14
|
16
|
16
|
17
|
19
|
17
|
|
|
2025/05
|
42
|
38
|
31
|
30
|
35
|
35
|
31
|
27
|
36
|
31
|
29
|
36
|
33
|
34
|
34
|
31
|
31
|
32
|
35
|
32
|
36
|
35
|
49
|
32
|
27
|
24
|
17
|
17
|
18
|
16
|
14
|
|
2025/04
|
46
|
47
|
60
|
69
|
58
|
51
|
52
|
62
|
58
|
62
|
53
|
78
|
79
|
65
|
58
|
39
|
30
|
32
|
36
|
34
|
29
|
34
|
47
|
45
|
40
|
57
|
58
|
38
|
34
|
28
|
|
|
2025/03
|
41
|
45
|
42
|
45
|
47
|
35
|
39
|
53
|
47
|
48
|
48
|
55
|
67
|
66
|
52
|
27
|
23
|
17
|
37
|
44
|
59
|
63
|
54
|
41
|
38
|
37
|
36
|
83
|
72
|
53
|
41
|
|
2025/02
|
40
|
48
|
21
|
40
|
49
|
44
|
26
|
34
|
39
|
34
|
38
|
46
|
46
|
54
|
48
|
53
|
34
|
39
|
52
|
41
|
45
|
42
|
43
|
31
|
33
|
32
|
37
|
37
|
|||
|
2025/01
|
47
|
50
|
43
|
49
|
39
|
55
|
36
|
36
|
34
|
30
|
20
|
44
|
46
|
47
|
50
|
71
|
58
|
56
|
59
|
63
|
49
|
50
|
52
|
34
|
35
|
34
|
45
|
50
|
76
|
42
|
34
|
|
2024/12
|
34
|
37
|
38
|
36
|
38
|
38
|
41
|
40
|
27
|
28
|
35
|
35
|
39
|
29
|
43
|
53
|
41
|
30
|
37
|
31
|
42
|
37
|
37
|
38
|
39
|
43
|
53
|
43
|
43
|
39
|
44
|
|
2024/11
|
26
|
28
|
43
|
31
|
35
|
46
|
37
|
22
|
21
|
41
|
33
|
28
|
31
|
42
|
46
|
47
|
49
|
39
|
39
|
43
|
28
|
31
|
26
|
23
|
30
|
31
|
30
|
36
|
31
|
28
|
|
|
2024/10
|
11
|
21
|
30
|
30
|
21
|
23
|
17
|
29
|
23
|
23
|
21
|
23
|
28
|
27
|
26
|
19
|
24
|
36
|
43
|
33
|
24
|
23
|
25
|
40
|
40
|
36
|
33
|
34
|
45
|
42
|
36
|
|
2024/09
|
28
|
21
|
23
|
27
|
24
|
32
|
27
|
17
|
16
|
15
|
23
|
24
|
29
|
33
|
34
|
26
|
21
|
26
|
32
|
35
|
32
|
21
|
26
|
43
|
39
|
34
|
33
|
17
|
20
|
23
|
|
|
2024/08
|
37
|
38
|
30
|
23
|
21
|
20
|
18
|
17
|
16
|
20
|
52
|
45
|
48
|
46
|
43
|
39
|
37
|
35
|
38
|
40
|
38
|
33
|
26
|
33
|
29
|
24
|
26
|
32
|
36
|
37
|
33
|
|
2024/07
|
17
|
22
|
22
|
10
|
11
|
15
|
14
|
14
|
18
|
18
|
13
|
17
|
17
|
19
|
15
|
17
|
21
|
24
|
21
|
20
|
19
|
20
|
25
|
32
|
24
|
34
|
37
|
24
|
21
|
18
|
28
|
|
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