Air Quality
Excellent
No health implications.
3
PM2.5
9
PM10
35
O3
0.4
CO
5
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
27
Excellent
Mon
18 May
32
Excellent
Tue
19 May
32
Excellent
Wed
20 May
51
Good
Thu
21 May
63
Good
Fri
22 May
29
Excellent
Sat
23 May
33
Excellent
Air quality in the last 12 months (Xuanhan)
|
2026/04
|
36
|
37
|
42
|
61
|
68
|
67
|
38
|
35
|
34
|
40
|
31
|
33
|
26
|
21
|
23
|
31
|
51
|
52
|
52
|
67
|
29
|
22
|
32
|
40
|
53
|
68
|
51
|
27
|
33
|
42
|
|
|
2026/03
|
17
|
21
|
28
|
45
|
43
|
47
|
50
|
35
|
32
|
37
|
40
|
50
|
55
|
45
|
19
|
22
|
21
|
25
|
32
|
39
|
41
|
44
|
38
|
23
|
31
|
42
|
48
|
45
|
35
|
22
|
27
|
|
2026/02
|
56
|
63
|
85
|
93
|
111
|
81
|
67
|
58
|
51
|
59
|
58
|
62
|
94
|
84
|
63
|
33
|
71
|
61
|
66
|
69
|
65
|
70
|
57
|
37
|
43
|
33
|
30
|
23
|
|||
|
2026/01
|
26
|
34
|
47
|
66
|
67
|
72
|
86
|
101
|
104
|
100
|
133
|
154
|
144
|
144
|
149
|
123
|
150
|
136
|
50
|
33
|
47
|
55
|
71
|
73
|
77
|
76
|
58
|
62
|
52
|
24
|
39
|
|
2025/12
|
102
|
124
|
62
|
64
|
67
|
73
|
86
|
100
|
118
|
127
|
119
|
95
|
47
|
60
|
75
|
85
|
89
|
101
|
115
|
91
|
28
|
42
|
34
|
47
|
47
|
57
|
65
|
77
|
94
|
139
|
69
|
|
2025/11
|
50
|
47
|
58
|
52
|
48
|
28
|
13
|
22
|
18
|
37
|
41
|
45
|
52
|
48
|
43
|
46
|
19
|
23
|
37
|
54
|
62
|
84
|
67
|
56
|
51
|
60
|
68
|
68
|
71
|
88
|
|
|
2025/10
|
19
|
17
|
17
|
16
|
24
|
34
|
31
|
28
|
39
|
37
|
41
|
28
|
19
|
23
|
15
|
24
|
14
|
21
|
16
|
11
|
14
|
21
|
24
|
31
|
24
|
29
|
32
|
38
|
42
|
30
|
39
|
|
2025/09
|
37
|
45
|
42
|
42
|
43
|
17
|
31
|
25
|
25
|
27
|
29
|
25
|
25
|
33
|
42
|
38
|
25
|
25
|
18
|
20
|
17
|
14
|
18
|
22
|
31
|
24
|
25
|
28
|
15
|
19
|
|
|
2025/08
|
30
|
33
|
34
|
37
|
32
|
30
|
27
|
23
|
29
|
22
|
24
|
30
|
28
|
36
|
36
|
20
|
25
|
29
|
36
|
36
|
32
|
25
|
28
|
26
|
29
|
34
|
32
|
37
|
35
|
36
|
34
|
|
2025/07
|
21
|
20
|
21
|
21
|
23
|
26
|
21
|
17
|
23
|
26
|
27
|
32
|
36
|
38
|
39
|
39
|
40
|
27
|
24
|
24
|
29
|
21
|
18
|
14
|
18
|
21
|
25
|
25
|
27
|
27
|
29
|
|
2025/06
|
17
|
28
|
39
|
42
|
43
|
45
|
29
|
20
|
34
|
44
|
43
|
39
|
44
|
37
|
42
|
50
|
42
|
27
|
21
|
32
|
20
|
24
|
24
|
27
|
18
|
22
|
27
|
28
|
21
|
18
|
|
|
2025/05
|
50
|
65
|
63
|
47
|
53
|
54
|
49
|
32
|
68
|
75
|
60
|
59
|
48
|
44
|
67
|
66
|
72
|
57
|
67
|
73
|
63
|
35
|
59
|
64
|
52
|
50
|
44
|
28
|
29
|
36
|
23
|
|
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