Air Quality
Excellent
No health implications.
6
PM2.5
11
PM10
45
O3
0.5
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
53
Good
Sun
28 Jul
53
Good
Mon
29 Jul
77
Good
Tue
30 Jul
58
Good
Wed
31 Jul
49
Excellent
Thu
1 Aug
54
Good
Fri
2 Aug
50
Excellent
Air quality in the last 12 months (Quannan)
|
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
|
|
2024/02
|
70
|
42
|
36
|
20
|
23
|
20
|
17
|
18
|
45
|
67
|
54
|
53
|
55
|
47
|
48
|
33
|
41
|
67
|
45
|
37
|
24
|
30
|
23
|
33
|
45
|
38
|
33
|
45
|
41
|
||
|
2024/01
|
78
|
82
|
41
|
49
|
67
|
76
|
68
|
98
|
69
|
48
|
79
|
94
|
82
|
55
|
74
|
90
|
58
|
57
|
70
|
32
|
32
|
24
|
19
|
33
|
53
|
68
|
79
|
82
|
67
|
52
|
76
|
|
2023/12
|
56
|
49
|
50
|
47
|
67
|
49
|
43
|
62
|
76
|
84
|
63
|
45
|
37
|
58
|
46
|
23
|
22
|
33
|
49
|
18
|
29
|
50
|
45
|
42
|
55
|
65
|
62
|
69
|
65
|
83
|
85
|
|
2023/11
|
45
|
44
|
57
|
68
|
66
|
44
|
40
|
51
|
63
|
44
|
18
|
22
|
32
|
46
|
44
|
42
|
57
|
63
|
68
|
64
|
59
|
60
|
60
|
75
|
59
|
52
|
59
|
68
|
60
|
65
|
|
|
2023/10
|
38
|
37
|
48
|
49
|
26
|
32
|
25
|
25
|
27
|
31
|
27
|
34
|
42
|
43
|
52
|
53
|
63
|
68
|
75
|
38
|
28
|
30
|
36
|
43
|
54
|
49
|
30
|
26
|
43
|
51
|
48
|
|
2023/09
|
20
|
24
|
25
|
17
|
19
|
14
|
20
|
27
|
31
|
37
|
35
|
34
|
37
|
29
|
21
|
37
|
39
|
36
|
36
|
38
|
44
|
39
|
28
|
36
|
33
|
36
|
41
|
37
|
35
|
39
|
|
|
2023/08
|
23
|
27
|
29
|
34
|
31
|
32
|
35
|
34
|
29
|
29
|
27
|
23
|
28
|
30
|
27
|
32
|
24
|
31
|
34
|
25
|
29
|
24
|
26
|
27
|
34
|
31
|
30
|
25
|
33
|
19
|
21
|
|
2023/07
|
20
|
16
|
17
|
17
|
21
|
28
|
26
|
31
|
36
|
32
|
28
|
22
|
26
|
40
|
53
|
28
|
18
|
15
|
21
|
24
|
27
|
28
|
25
|
32
|
33
|
23
|
16
|
16
|
22
|
19
|
26
|
|
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