Air Quality
Excellent
No health implications.
12
PM2.5
34
PM10
14
O3
0.6
CO
20
SO2
28
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Jul
55
Good
Wed
2 Jul
56
Good
Thu
3 Jul
78
Good
Fri
4 Jul
74
Good
Sat
5 Jul
78
Good
Sun
6 Jul
40
Excellent
Mon
7 Jul
48
Excellent
Air quality in the last 12 months (Quannan)
|
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
|
|
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
|
|
|
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