Air Quality
Excellent
No health implications.
4
PM2.5
7
PM10
39
O3
0.6
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jul
52
Good
Mon
27 Jul
50
Excellent
Tue
28 Jul
52
Good
Wed
29 Jul
55
Good
Thu
30 Jul
53
Good
Fri
31 Jul
54
Good
Sat
1 Aug
15
Excellent
Air quality in the last 12 months (Quannan)
|
2026/06
|
53
|
61
|
45
|
40
|
36
|
40
|
41
|
27
|
22
|
31
|
31
|
45
|
29
|
26
|
25
|
22
|
17
|
20
|
19
|
24
|
31
|
33
|
39
|
42
|
27
|
23
|
28
|
32
|
25
|
18
|
|
|
2026/05
|
37
|
43
|
39
|
24
|
38
|
40
|
37
|
47
|
30
|
43
|
41
|
58
|
54
|
20
|
21
|
24
|
35
|
36
|
39
|
36
|
27
|
31
|
30
|
35
|
29
|
37
|
39
|
40
|
47
|
53
|
58
|
|
2026/04
|
31
|
35
|
35
|
26
|
38
|
46
|
45
|
46
|
46
|
42
|
41
|
38
|
34
|
43
|
54
|
43
|
47
|
42
|
45
|
51
|
45
|
34
|
31
|
21
|
31
|
59
|
63
|
57
|
30
|
25
|
|
|
2026/03
|
17
|
34
|
22
|
32
|
34
|
38
|
48
|
46
|
40
|
37
|
52
|
57
|
49
|
53
|
52
|
50
|
51
|
46
|
43
|
48
|
44
|
51
|
53
|
44
|
49
|
41
|
49
|
39
|
47
|
65
|
37
|
|
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
|
|
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