Air Quality
Excellent
No health implications.
8
PM2.5
12
PM10
13
O3
0.6
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
34
Excellent
Mon
18 May
30
Excellent
Tue
19 May
34
Excellent
Wed
20 May
39
Excellent
Thu
21 May
36
Excellent
Fri
22 May
28
Excellent
Sat
23 May
23
Excellent
Air quality in the last 12 months (Xuan'en)
|
2026/04
|
27
|
29
|
39
|
54
|
49
|
39
|
29
|
33
|
40
|
37
|
27
|
29
|
26
|
21
|
19
|
27
|
29
|
37
|
38
|
51
|
38
|
22
|
22
|
30
|
45
|
46
|
32
|
26
|
30
|
32
|
|
|
2026/03
|
21
|
20
|
24
|
35
|
37
|
46
|
48
|
18
|
26
|
30
|
36
|
51
|
54
|
66
|
29
|
20
|
19
|
19
|
34
|
36
|
34
|
39
|
36
|
23
|
23
|
20
|
23
|
31
|
30
|
24
|
29
|
|
2026/02
|
50
|
57
|
72
|
92
|
116
|
113
|
105
|
75
|
58
|
56
|
54
|
62
|
70
|
77
|
85
|
41
|
85
|
85
|
69
|
53
|
54
|
55
|
53
|
32
|
30
|
24
|
20
|
23
|
|||
|
2026/01
|
32
|
48
|
66
|
65
|
69
|
59
|
63
|
78
|
88
|
100
|
89
|
69
|
99
|
117
|
177
|
172
|
159
|
196
|
72
|
38
|
60
|
71
|
78
|
81
|
71
|
70
|
72
|
67
|
50
|
22
|
41
|
|
2025/12
|
109
|
126
|
74
|
78
|
86
|
81
|
89
|
73
|
91
|
116
|
114
|
132
|
31
|
39
|
53
|
66
|
80
|
84
|
100
|
101
|
35
|
30
|
26
|
34
|
45
|
51
|
65
|
79
|
96
|
126
|
57
|
|
2025/11
|
39
|
37
|
36
|
32
|
32
|
22
|
18
|
16
|
17
|
40
|
43
|
37
|
33
|
46
|
56
|
64
|
45
|
18
|
23
|
33
|
44
|
61
|
74
|
47
|
53
|
62
|
68
|
83
|
99
|
110
|
|
|
2025/10
|
19
|
26
|
29
|
22
|
25
|
29
|
31
|
33
|
38
|
37
|
43
|
46
|
18
|
10
|
13
|
10
|
11
|
9
|
9
|
9
|
13
|
13
|
19
|
29
|
39
|
32
|
31
|
32
|
42
|
35
|
32
|
|
2025/09
|
25
|
25
|
25
|
22
|
28
|
33
|
23
|
26
|
20
|
16
|
15
|
19
|
10
|
11
|
16
|
20
|
24
|
17
|
18
|
12
|
21
|
24
|
16
|
13
|
19
|
19
|
22
|
24
|
28
|
23
|
|
|
2025/08
|
27
|
28
|
24
|
26
|
24
|
24
|
21
|
16
|
19
|
15
|
10
|
9
|
9
|
18
|
16
|
16
|
18
|
24
|
22
|
15
|
14
|
17
|
17
|
24
|
16
|
21
|
23
|
26
|
26
|
25
|
19
|
|
2025/07
|
15
|
20
|
16
|
17
|
18
|
21
|
23
|
25
|
27
|
23
|
26
|
31
|
30
|
22
|
24
|
23
|
21
|
21
|
20
|
26
|
23
|
18
|
12
|
13
|
13
|
18
|
22
|
19
|
18
|
19
|
23
|
|
2025/06
|
9
|
15
|
27
|
32
|
33
|
41
|
32
|
17
|
19
|
28
|
37
|
35
|
35
|
33
|
31
|
36
|
29
|
21
|
10
|
13
|
12
|
17
|
16
|
24
|
16
|
16
|
19
|
18
|
16
|
18
|
|
|
2025/05
|
50
|
71
|
60
|
53
|
33
|
42
|
52
|
28
|
27
|
32
|
42
|
39
|
43
|
46
|
39
|
39
|
42
|
41
|
46
|
43
|
43
|
18
|
39
|
53
|
45
|
37
|
38
|
28
|
30
|
31
|
21
|
|
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