Air Quality
Excellent
No health implications.
20
PM2.5
37
PM10
135
O3
0.5
CO
9
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 May
84
Good
Mon
6 May
81
Good
Tue
7 May
82
Good
Wed
8 May
82
Good
Thu
9 May
83
Good
Fri
10 May
82
Good
Sat
11 May
79
Good
Air quality in the last 12 months (Dongchuan)
|
2024/02
|
33
|
50
|
46
|
30
|
35
|
31
|
31
|
40
|
42
|
50
|
46
|
41
|
37
|
33
|
52
|
48
|
29
|
31
|
32
|
41
|
36
|
45
|
52
|
47
|
50
|
38
|
38
|
32
|
36
|
||
|
2024/01
|
48
|
38
|
47
|
43
|
39
|
51
|
49
|
51
|
52
|
49
|
50
|
53
|
66
|
62
|
55
|
29
|
28
|
33
|
37
|
52
|
48
|
25
|
47
|
45
|
35
|
27
|
30
|
28
|
27
|
39
|
30
|
|
2023/12
|
49
|
28
|
32
|
36
|
42
|
32
|
45
|
36
|
30
|
25
|
30
|
43
|
22
|
21
|
33
|
41
|
35
|
21
|
37
|
58
|
61
|
51
|
46
|
57
|
49
|
40
|
43
|
44
|
41
|
57
|
53
|
|
2023/11
|
39
|
41
|
36
|
35
|
30
|
44
|
41
|
41
|
44
|
45
|
46
|
48
|
34
|
28
|
27
|
31
|
51
|
53
|
53
|
59
|
45
|
49
|
59
|
46
|
35
|
43
|
55
|
57
|
47
|
54
|
|
|
2023/10
|
22
|
18
|
20
|
20
|
25
|
25
|
18
|
20
|
19
|
20
|
32
|
33
|
19
|
21
|
28
|
32
|
32
|
35
|
40
|
28
|
46
|
46
|
38
|
35
|
30
|
29
|
30
|
39
|
38
|
45
|
41
|
|
2023/09
|
32
|
38
|
40
|
35
|
41
|
40
|
40
|
44
|
40
|
32
|
32
|
25
|
27
|
38
|
46
|
47
|
34
|
25
|
24
|
25
|
25
|
24
|
24
|
24
|
25
|
26
|
25
|
18
|
19
|
22
|
|
|
2023/08
|
26
|
26
|
28
|
23
|
23
|
30
|
20
|
25
|
27
|
25
|
31
|
31
|
28
|
43
|
38
|
37
|
37
|
39
|
36
|
34
|
37
|
30
|
33
|
24
|
25
|
21
|
24
|
28
|
37
|
27
|
32
|
|
2023/07
|
27
|
26
|
26
|
25
|
29
|
19
|
21
|
20
|
21
|
15
|
14
|
15
|
17
|
26
|
37
|
35
|
37
|
37
|
30
|
23
|
29
|
30
|
32
|
24
|
31
|
25
|
23
|
24
|
30
|
38
|
36
|
|
2023/06
|
39
|
34
|
32
|
31
|
30
|
26
|
31
|
26
|
30
|
33
|
35
|
35
|
30
|
35
|
25
|
36
|
35
|
29
|
29
|
27
|
25
|
25
|
24
|
33
|
46
|
48
|
39
|
33
|
27
|
25
|
|
|
2023/05
|
41
|
38
|
31
|
34
|
42
|
34
|
43
|
36
|
41
|
53
|
39
|
30
|
39
|
40
|
37
|
31
|
40
|
51
|
39
|
40
|
41
|
47
|
44
|
49
|
41
|
34
|
34
|
37
|
40
|
43
|
44
|
|
2023/04
|
48
|
39
|
34
|
35
|
37
|
40
|
52
|
56
|
57
|
65
|
62
|
69
|
72
|
81
|
46
|
81
|
80
|
57
|
58
|
58
|
53
|
55
|
40
|
43
|
37
|
45
|
46
|
41
|
44
|
50
|
|
|
2023/03
|
63
|
61
|
43
|
52
|
64
|
65
|
65
|
50
|
50
|
61
|
65
|
48
|
33
|
58
|
71
|
57
|
51
|
52
|
58
|
34
|
28
|
31
|
36
|
37
|
42
|
48
|
45
|
46
|
41
|
40
|
46
|
|
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