Air Quality
Excellent
No health implications.
22
PM2.5
25
PM10
65
O3
0.4
CO
16
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Mar
51
Good
Wed
19 Mar
58
Good
Thu
20 Mar
55
Good
Fri
21 Mar
55
Good
Sat
22 Mar
54
Good
Sun
23 Mar
46
Excellent
Mon
24 Mar
15
Excellent
Air quality in the last 12 months (Xichou)
|
2025/02
|
46
|
46
|
21
|
32
|
63
|
46
|
20
|
24
|
25
|
35
|
46
|
56
|
37
|
41
|
46
|
46
|
28
|
24
|
26
|
28
|
22
|
23
|
20
|
15
|
19
|
17
|
26
|
36
|
|||
|
2025/01
|
54
|
62
|
84
|
87
|
63
|
94
|
114
|
99
|
64
|
23
|
39
|
50
|
56
|
69
|
73
|
85
|
90
|
106
|
79
|
69
|
94
|
105
|
60
|
38
|
47
|
24
|
41
|
51
|
68
|
48
|
51
|
|
2024/12
|
48
|
61
|
50
|
48
|
47
|
23
|
20
|
18
|
20
|
30
|
36
|
26
|
32
|
36
|
68
|
71
|
55
|
55
|
70
|
75
|
81
|
81
|
83
|
78
|
83
|
91
|
71
|
43
|
50
|
65
|
49
|
|
2024/11
|
35
|
44
|
45
|
39
|
45
|
51
|
52
|
57
|
54
|
54
|
52
|
46
|
50
|
53
|
46
|
45
|
55
|
53
|
58
|
37
|
39
|
42
|
38
|
47
|
47
|
31
|
18
|
22
|
42
|
46
|
|
|
2024/10
|
13
|
16
|
26
|
28
|
35
|
38
|
42
|
60
|
44
|
40
|
44
|
50
|
62
|
40
|
27
|
14
|
17
|
29
|
34
|
26
|
31
|
32
|
26
|
43
|
45
|
33
|
43
|
44
|
41
|
33
|
34
|
|
2024/09
|
26
|
19
|
26
|
22
|
25
|
33
|
27
|
10
|
10
|
12
|
16
|
19
|
22
|
25
|
29
|
26
|
19
|
24
|
26
|
35
|
31
|
16
|
29
|
36
|
39
|
44
|
46
|
40
|
26
|
19
|
|
|
2024/08
|
11
|
14
|
12
|
13
|
15
|
18
|
18
|
19
|
17
|
22
|
20
|
31
|
27
|
38
|
45
|
33
|
37
|
41
|
29
|
28
|
22
|
12
|
13
|
16
|
15
|
14
|
16
|
27
|
29
|
29
|
24
|
|
2024/07
|
16
|
16
|
12
|
15
|
15
|
17
|
17
|
18
|
18
|
15
|
13
|
16
|
18
|
15
|
17
|
17
|
15
|
13
|
12
|
13
|
14
|
17
|
22
|
15
|
18
|
23
|
31
|
21
|
13
|
12
|
15
|
|
2024/06
|
23
|
26
|
20
|
21
|
13
|
14
|
13
|
13
|
13
|
14
|
16
|
19
|
17
|
16
|
15
|
17
|
25
|
27
|
29
|
25
|
22
|
23
|
22
|
17
|
22
|
11
|
12
|
16
|
16
|
14
|
|
|
2024/05
|
64
|
48
|
32
|
47
|
39
|
32
|
36
|
33
|
13
|
18
|
27
|
32
|
25
|
25
|
25
|
17
|
32
|
31
|
23
|
24
|
32
|
29
|
30
|
29
|
31
|
13
|
16
|
15
|
21
|
23
|
18
|
|
2024/04
|
63
|
60
|
74
|
82
|
78
|
83
|
70
|
49
|
33
|
46
|
50
|
60
|
69
|
65
|
88
|
94
|
84
|
50
|
59
|
45
|
44
|
50
|
49
|
49
|
46
|
50
|
61
|
64
|
72
|
62
|
|
|
2024/03
|
21
|
26
|
41
|
62
|
42
|
48
|
94
|
69
|
45
|
28
|
29
|
44
|
52
|
45
|
55
|
68
|
94
|
81
|
39
|
45
|
44
|
47
|
41
|
49
|
55
|
62
|
64
|
61
|
42
|
65
|
69
|
|
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