Air Quality
Excellent
No health implications.
35
PM2.5
49
PM10
61
O3
0.7
CO
5
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Apr
44
Excellent
Fri
25 Apr
34
Excellent
Sat
26 Apr
38
Excellent
Sun
27 Apr
55
Good
Mon
28 Apr
57
Good
Tue
29 Apr
58
Good
Wed
30 Apr
17
Excellent
Air quality in the last 12 months (Quannan)
|
2025/02
|
51
|
25
|
17
|
32
|
56
|
61
|
20
|
48
|
43
|
39
|
49
|
53
|
50
|
51
|
56
|
68
|
47
|
57
|
39
|
42
|
24
|
22
|
22
|
35
|
52
|
71
|
81
|
66
|
|||
|
2025/01
|
70
|
72
|
70
|
56
|
70
|
72
|
67
|
69
|
66
|
59
|
50
|
50
|
61
|
60
|
72
|
83
|
64
|
59
|
57
|
59
|
65
|
71
|
72
|
52
|
43
|
25
|
23
|
41
|
128
|
56
|
49
|
|
2024/12
|
65
|
68
|
50
|
47
|
57
|
50
|
44
|
37
|
46
|
49
|
45
|
30
|
30
|
43
|
54
|
54
|
60
|
60
|
59
|
47
|
50
|
68
|
73
|
50
|
56
|
63
|
71
|
75
|
69
|
68
|
73
|
|
2024/11
|
23
|
26
|
41
|
52
|
50
|
45
|
33
|
36
|
49
|
51
|
45
|
36
|
32
|
41
|
40
|
25
|
31
|
18
|
16
|
16
|
21
|
27
|
33
|
37
|
34
|
17
|
29
|
31
|
38
|
55
|
|
|
2024/10
|
20
|
15
|
23
|
25
|
24
|
31
|
34
|
30
|
30
|
40
|
49
|
49
|
46
|
49
|
47
|
39
|
43
|
49
|
43
|
22
|
33
|
37
|
36
|
36
|
32
|
34
|
41
|
17
|
34
|
46
|
26
|
|
2024/09
|
37
|
42
|
47
|
34
|
30
|
19
|
16
|
21
|
19
|
34
|
46
|
52
|
33
|
42
|
28
|
27
|
28
|
22
|
36
|
22
|
24
|
15
|
17
|
21
|
19
|
31
|
28
|
23
|
29
|
19
|
|
|
2024/08
|
27
|
30
|
35
|
46
|
42
|
39
|
34
|
35
|
36
|
48
|
42
|
33
|
25
|
30
|
24
|
20
|
24
|
20
|
19
|
18
|
16
|
25
|
29
|
29
|
42
|
46
|
36
|
35
|
39
|
35
|
36
|
|
2024/07
|
19
|
20
|
21
|
21
|
20
|
18
|
14
|
18
|
15
|
20
|
22
|
28
|
24
|
25
|
21
|
19
|
19
|
17
|
18
|
25
|
24
|
31
|
37
|
33
|
20
|
12
|
15
|
19
|
20
|
21
|
14
|
|
2024/06
|
12
|
10
|
36
|
26
|
23
|
30
|
29
|
32
|
23
|
26
|
21
|
28
|
33
|
21
|
22
|
19
|
17
|
25
|
21
|
23
|
24
|
34
|
22
|
17
|
20
|
25
|
24
|
21
|
16
|
20
|
|
|
2024/05
|
27
|
24
|
32
|
42
|
26
|
36
|
55
|
50
|
51
|
50
|
49
|
35
|
40
|
38
|
47
|
57
|
58
|
56
|
44
|
20
|
14
|
13
|
26
|
22
|
32
|
18
|
16
|
25
|
34
|
48
|
36
|
|
2024/04
|
40
|
62
|
48
|
43
|
23
|
29
|
18
|
32
|
26
|
46
|
54
|
61
|
73
|
50
|
59
|
54
|
43
|
39
|
39
|
50
|
23
|
38
|
36
|
26
|
34
|
26
|
33
|
18
|
27
|
27
|
|
|
2024/03
|
12
|
29
|
48
|
44
|
65
|
43
|
38
|
62
|
61
|
54
|
36
|
35
|
70
|
67
|
56
|
72
|
62
|
47
|
50
|
62
|
67
|
70
|
70
|
46
|
44
|
43
|
47
|
53
|
55
|
60
|
41
|
|
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