Air Quality
Excellent
No health implications.
24
PM2.5
32
PM10
12
O3
0.6
CO
7
SO2
24
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Mar
55
Good
Thu
12 Mar
60
Good
Fri
13 Mar
54
Good
Sat
14 Mar
55
Good
Sun
15 Mar
55
Good
Mon
16 Mar
41
Excellent
Tue
17 Mar
22
Excellent
Air quality in the last 12 months (Quannan)
|
2026/02
|
25
|
43
|
51
|
61
|
62
|
59
|
32
|
41
|
41
|
53
|
47
|
50
|
54
|
43
|
34
|
43
|
61
|
45
|
42
|
46
|
53
|
59
|
55
|
64
|
38
|
34
|
31
|
13
|
|||
|
2026/01
|
33
|
19
|
38
|
51
|
43
|
33
|
41
|
52
|
56
|
57
|
61
|
64
|
63
|
67
|
76
|
80
|
73
|
85
|
78
|
40
|
35
|
41
|
38
|
48
|
51
|
66
|
52
|
39
|
49
|
54
|
31
|
|
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
|
|
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