Air Quality
Excellent
No health implications.
20
PM2.5
45
PM10
22
O3
1.0
CO
10
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
39
Excellent
Tue
30 Apr
32
Excellent
Wed
1 May
38
Excellent
Thu
2 May
32
Excellent
Fri
3 May
45
Excellent
Sat
4 May
45
Excellent
Air quality in the last 12 months (Sanyuan)
|
2024/02
|
47
|
36
|
29
|
26
|
14
|
17
|
18
|
20
|
34
|
95
|
52
|
43
|
49
|
56
|
42
|
20
|
38
|
46
|
37
|
36
|
34
|
23
|
15
|
16
|
20
|
15
|
12
|
23
|
17
|
||
|
2024/01
|
80
|
72
|
24
|
38
|
48
|
58
|
61
|
73
|
46
|
35
|
35
|
43
|
46
|
44
|
52
|
63
|
51
|
54
|
55
|
33
|
18
|
12
|
23
|
38
|
45
|
49
|
48
|
47
|
52
|
35
|
37
|
|
2023/12
|
64
|
47
|
50
|
27
|
21
|
29
|
34
|
44
|
54
|
65
|
54
|
26
|
24
|
32
|
36
|
12
|
27
|
29
|
13
|
26
|
36
|
42
|
37
|
40
|
36
|
46
|
48
|
50
|
56
|
52
|
60
|
|
2023/11
|
31
|
35
|
39
|
47
|
57
|
32
|
32
|
40
|
48
|
28
|
15
|
13
|
14
|
27
|
36
|
23
|
49
|
48
|
46
|
45
|
39
|
44
|
43
|
57
|
44
|
37
|
48
|
51
|
46
|
48
|
|
|
2023/10
|
33
|
27
|
31
|
30
|
25
|
25
|
14
|
13
|
13
|
16
|
18
|
23
|
24
|
34
|
42
|
46
|
46
|
51
|
61
|
23
|
18
|
32
|
32
|
28
|
40
|
47
|
23
|
26
|
35
|
38
|
37
|
|
2023/09
|
21
|
23
|
20
|
18
|
18
|
16
|
19
|
26
|
28
|
37
|
37
|
41
|
38
|
30
|
17
|
25
|
26
|
31
|
42
|
40
|
38
|
30
|
22
|
19
|
20
|
24
|
26
|
26
|
23
|
28
|
|
|
2023/08
|
20
|
27
|
28
|
33
|
37
|
37
|
37
|
27
|
28
|
28
|
28
|
26
|
28
|
30
|
29
|
26
|
32
|
37
|
30
|
27
|
26
|
25
|
27
|
25
|
29
|
25
|
24
|
28
|
19
|
17
|
20
|
|
2023/07
|
25
|
25
|
21
|
21
|
19
|
24
|
23
|
28
|
31
|
30
|
33
|
32
|
31
|
33
|
35
|
21
|
21
|
24
|
23
|
22
|
21
|
24
|
26
|
31
|
28
|
17
|
15
|
15
|
19
|
20
|
22
|
|
2023/06
|
28
|
35
|
38
|
41
|
36
|
28
|
22
|
20
|
22
|
28
|
28
|
39
|
45
|
41
|
32
|
32
|
31
|
26
|
28
|
26
|
30
|
28
|
28
|
30
|
32
|
21
|
23
|
26
|
24
|
21
|
|
|
2023/05
|
32
|
34
|
40
|
31
|
31
|
29
|
20
|
24
|
24
|
29
|
37
|
27
|
36
|
48
|
49
|
52
|
46
|
27
|
33
|
32
|
27
|
24
|
24
|
31
|
40
|
41
|
44
|
36
|
26
|
24
|
27
|
|
2023/04
|
33
|
36
|
38
|
33
|
35
|
31
|
27
|
52
|
47
|
52
|
53
|
32
|
57
|
56
|
41
|
53
|
53
|
47
|
29
|
30
|
26
|
28
|
48
|
37
|
14
|
18
|
30
|
40
|
32
|
40
|
|
|
2023/03
|
43
|
54
|
63
|
51
|
42
|
44
|
46
|
55
|
53
|
46
|
47
|
49
|
56
|
49
|
51
|
59
|
49
|
51
|
39
|
45
|
53
|
54
|
43
|
25
|
24
|
15
|
28
|
38
|
29
|
27
|
40
|
|
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