Air Quality
Excellent
No health implications.
31
PM2.5
42
PM10
31
O3
0.8
CO
12
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jan
61
Good
Fri
30 Jan
59
Good
Sat
31 Jan
54
Good
Sun
1 Feb
54
Good
Mon
2 Feb
55
Good
Tue
3 Feb
56
Good
Wed
4 Feb
26
Excellent
Quannan Air quality rank
Air quality in the last 12 months (Quannan)
|
2025/12
|
52
|
62
|
56
|
53
|
56
|
54
|
56
|
56
|
60
|
58
|
57
|
62
|
34
|
36
|
56
|
53
|
55
|
65
|
67
|
52
|
74
|
48
|
50
|
51
|
22
|
33
|
40
|
47
|
49
|
50
|
57
|
|
2025/11
|
31
|
48
|
38
|
15
|
17
|
29
|
42
|
45
|
46
|
23
|
31
|
16
|
17
|
33
|
47
|
53
|
53
|
42
|
24
|
40
|
42
|
56
|
55
|
57
|
44
|
71
|
62
|
74
|
80
|
61
|
|
|
2025/10
|
47
|
30
|
39
|
40
|
32
|
26
|
38
|
40
|
41
|
41
|
41
|
44
|
34
|
34
|
32
|
36
|
42
|
38
|
28
|
17
|
14
|
14
|
25
|
30
|
35
|
47
|
51
|
48
|
30
|
45
|
40
|
|
2025/09
|
38
|
29
|
32
|
36
|
36
|
31
|
18
|
13
|
15
|
22
|
24
|
31
|
32
|
37
|
37
|
31
|
29
|
22
|
22
|
13
|
22
|
21
|
21
|
15
|
21
|
25
|
34
|
36
|
40
|
50
|
|
|
2025/08
|
28
|
28
|
22
|
17
|
16
|
22
|
33
|
36
|
28
|
25
|
21
|
31
|
28
|
12
|
20
|
28
|
33
|
23
|
23
|
19
|
28
|
20
|
27
|
24
|
26
|
18
|
23
|
28
|
27
|
29
|
37
|
|
2025/07
|
28
|
26
|
35
|
39
|
21
|
26
|
35
|
38
|
37
|
16
|
12
|
24
|
36
|
28
|
31
|
36
|
40
|
30
|
20
|
18
|
13
|
13
|
20
|
22
|
24
|
24
|
24
|
21
|
23
|
21
|
19
|
|
2025/06
|
36
|
24
|
14
|
28
|
38
|
39
|
35
|
41
|
27
|
33
|
34
|
27
|
24
|
19
|
17
|
25
|
19
|
26
|
24
|
15
|
20
|
21
|
25
|
25
|
24
|
18
|
21
|
21
|
23
|
25
|
|
|
2025/05
|
64
|
53
|
48
|
49
|
33
|
35
|
38
|
61
|
36
|
32
|
32
|
45
|
47
|
45
|
35
|
23
|
19
|
26
|
27
|
28
|
28
|
34
|
33
|
26
|
49
|
52
|
45
|
43
|
11
|
25
|
44
|
|
2025/04
|
24
|
45
|
53
|
64
|
52
|
56
|
61
|
70
|
95
|
64
|
52
|
60
|
150
|
102
|
92
|
81
|
68
|
63
|
46
|
42
|
46
|
38
|
32
|
35
|
25
|
23
|
40
|
45
|
49
|
62
|
|
|
2025/03
|
62
|
41
|
35
|
24
|
14
|
15
|
26
|
35
|
43
|
49
|
58
|
53
|
38
|
40
|
36
|
12
|
49
|
49
|
48
|
56
|
54
|
56
|
67
|
77
|
85
|
61
|
47
|
63
|
25
|
11
|
12
|
|
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
|
|
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