Air Quality
Excellent
No health implications.
17
PM2.5
42
PM10
94
O3
0.5
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 May
45
Excellent
Sun
11 May
64
Good
Mon
12 May
64
Good
Tue
13 May
50
Excellent
Wed
14 May
53
Good
Thu
15 May
53
Good
Fri
16 May
17
Excellent
Air quality in the last 12 months (Dongchuan)
|
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
|
|
2024/06
|
33
|
30
|
27
|
26
|
16
|
21
|
16
|
16
|
13
|
20
|
18
|
20
|
22
|
20
|
28
|
27
|
18
|
20
|
24
|
29
|
28
|
25
|
21
|
18
|
18
|
22
|
17
|
12
|
18
|
19
|
|
|
2024/05
|
48
|
48
|
28
|
39
|
44
|
41
|
37
|
28
|
21
|
27
|
29
|
22
|
21
|
34
|
20
|
24
|
34
|
27
|
24
|
24
|
27
|
32
|
30
|
31
|
22
|
14
|
17
|
19
|
17
|
20
|
20
|
|
2024/04
|
29
|
37
|
48
|
45
|
47
|
60
|
49
|
39
|
46
|
45
|
59
|
59
|
42
|
42
|
48
|
56
|
61
|
45
|
40
|
36
|
30
|
43
|
41
|
39
|
39
|
41
|
44
|
52
|
40
|
42
|
|
|
2024/03
|
38
|
39
|
28
|
29
|
28
|
35
|
36
|
40
|
38
|
43
|
28
|
54
|
53
|
45
|
51
|
45
|
54
|
44
|
43
|
53
|
54
|
38
|
22
|
28
|
34
|
39
|
49
|
35
|
40
|
50
|
43
|
|
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