Air Quality
Excellent
No health implications.
10
PM2.5
17
PM10
40
O3
0.4
CO
4
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 May
46
Excellent
Wed
13 May
48
Excellent
Thu
14 May
48
Excellent
Fri
15 May
42
Excellent
Sat
16 May
43
Excellent
Sun
17 May
43
Excellent
Mon
18 May
29
Excellent
Air quality in the last 12 months (Dongchuan)
|
2026/04
|
34
|
37
|
32
|
33
|
42
|
39
|
38
|
45
|
35
|
37
|
37
|
38
|
44
|
55
|
60
|
52
|
43
|
40
|
58
|
40
|
43
|
49
|
37
|
45
|
40
|
44
|
35
|
27
|
32
|
36
|
|
|
2026/03
|
51
|
49
|
50
|
35
|
59
|
55
|
64
|
47
|
22
|
31
|
56
|
53
|
38
|
34
|
25
|
33
|
40
|
33
|
41
|
38
|
45
|
46
|
32
|
39
|
51
|
35
|
41
|
47
|
37
|
31
|
29
|
|
2026/02
|
43
|
39
|
38
|
37
|
38
|
37
|
54
|
37
|
37
|
32
|
32
|
36
|
37
|
35
|
40
|
62
|
99
|
52
|
40
|
36
|
35
|
43
|
42
|
45
|
49
|
47
|
42
|
45
|
|||
|
2026/01
|
46
|
31
|
28
|
26
|
34
|
32
|
43
|
42
|
55
|
55
|
60
|
44
|
49
|
48
|
57
|
41
|
61
|
48
|
51
|
40
|
34
|
50
|
54
|
49
|
45
|
49
|
56
|
57
|
43
|
37
|
43
|
|
2025/12
|
59
|
62
|
51
|
39
|
44
|
48
|
46
|
55
|
46
|
48
|
53
|
40
|
48
|
53
|
44
|
48
|
48
|
46
|
43
|
46
|
44
|
35
|
47
|
48
|
40
|
55
|
60
|
53
|
44
|
39
|
40
|
|
2025/11
|
21
|
15
|
11
|
25
|
25
|
21
|
25
|
26
|
14
|
19
|
25
|
26
|
29
|
30
|
31
|
34
|
38
|
28
|
19
|
32
|
47
|
36
|
40
|
38
|
42
|
54
|
44
|
51
|
55
|
59
|
|
|
2025/10
|
13
|
13
|
18
|
18
|
23
|
20
|
12
|
12
|
15
|
20
|
21
|
22
|
25
|
25
|
24
|
18
|
15
|
18
|
20
|
18
|
14
|
16
|
23
|
31
|
30
|
22
|
21
|
27
|
27
|
33
|
30
|
|
2025/09
|
24
|
24
|
26
|
25
|
23
|
23
|
27
|
25
|
24
|
27
|
20
|
19
|
21
|
20
|
21
|
19
|
18
|
22
|
20
|
27
|
25
|
22
|
17
|
18
|
30
|
15
|
15
|
17
|
14
|
15
|
|
|
2025/08
|
31
|
31
|
34
|
29
|
30
|
29
|
29
|
20
|
22
|
20
|
20
|
19
|
27
|
37
|
33
|
19
|
17
|
23
|
23
|
27
|
21
|
14
|
14
|
18
|
19
|
16
|
18
|
19
|
22
|
22
|
25
|
|
2025/07
|
17
|
12
|
16
|
18
|
18
|
21
|
23
|
19
|
19
|
21
|
19
|
23
|
29
|
33
|
33
|
34
|
33
|
36
|
23
|
26
|
16
|
13
|
14
|
16
|
16
|
18
|
23
|
29
|
40
|
31
|
31
|
|
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
|
|
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