Air Quality
Excellent
No health implications.
18
PM2.5
37
PM10
131
O3
0.4
CO
5
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 May
88
Good
Tue
12 May
91
Good
Wed
13 May
85
Good
Thu
14 May
86
Good
Fri
15 May
81
Good
Sat
16 May
78
Good
Sun
17 May
23
Excellent
Air quality in the last 12 months (Xi County)
|
2026/04
|
57
|
53
|
33
|
73
|
77
|
74
|
63
|
47
|
27
|
47
|
63
|
55
|
32
|
29
|
40
|
57
|
60
|
57
|
61
|
67
|
42
|
27
|
35
|
30
|
39
|
44
|
52
|
41
|
35
|
38
|
|
|
2026/03
|
39
|
49
|
67
|
95
|
73
|
82
|
76
|
80
|
104
|
90
|
92
|
136
|
83
|
105
|
76
|
100
|
59
|
73
|
76
|
79
|
72
|
72
|
93
|
89
|
74
|
72
|
68
|
62
|
66
|
62
|
80
|
|
2026/02
|
70
|
87
|
93
|
83
|
107
|
96
|
66
|
75
|
59
|
73
|
86
|
81
|
70
|
73
|
96
|
54
|
154
|
78
|
74
|
56
|
41
|
159
|
169
|
44
|
36
|
38
|
76
|
49
|
|||
|
2026/01
|
50
|
84
|
80
|
79
|
128
|
70
|
38
|
59
|
58
|
93
|
65
|
70
|
93
|
97
|
80
|
99
|
132
|
55
|
43
|
43
|
51
|
77
|
83
|
108
|
155
|
157
|
120
|
86
|
84
|
75
|
76
|
|
2025/12
|
121
|
102
|
66
|
65
|
104
|
79
|
85
|
107
|
106
|
108
|
188
|
56
|
59
|
71
|
58
|
89
|
219
|
193
|
126
|
213
|
99
|
49
|
62
|
93
|
83
|
64
|
71
|
76
|
119
|
171
|
75
|
|
2025/11
|
64
|
73
|
85
|
61
|
70
|
83
|
25
|
54
|
71
|
88
|
57
|
51
|
66
|
92
|
85
|
93
|
32
|
27
|
26
|
38
|
63
|
58
|
64
|
112
|
97
|
71
|
170
|
90
|
65
|
70
|
|
|
2025/10
|
23
|
13
|
19
|
33
|
43
|
35
|
37
|
54
|
41
|
21
|
20
|
32
|
17
|
33
|
31
|
32
|
13
|
25
|
32
|
32
|
42
|
47
|
49
|
59
|
81
|
62
|
68
|
59
|
68
|
70
|
100
|
|
2025/09
|
24
|
30
|
34
|
34
|
34
|
38
|
45
|
29
|
23
|
22
|
18
|
11
|
21
|
19
|
20
|
32
|
17
|
12
|
10
|
20
|
36
|
22
|
15
|
18
|
27
|
16
|
18
|
22
|
20
|
15
|
|
|
2025/08
|
24
|
17
|
21
|
26
|
31
|
28
|
19
|
19
|
17
|
23
|
11
|
15
|
16
|
27
|
23
|
23
|
24
|
28
|
28
|
19
|
17
|
19
|
20
|
27
|
29
|
21
|
27
|
29
|
28
|
31
|
24
|
|
2025/07
|
20
|
16
|
17
|
19
|
28
|
30
|
32
|
36
|
18
|
32
|
49
|
29
|
21
|
24
|
29
|
33
|
32
|
32
|
33
|
28
|
23
|
16
|
13
|
16
|
23
|
24
|
22
|
19
|
23
|
27
|
28
|
|
2025/06
|
34
|
30
|
48
|
43
|
40
|
36
|
36
|
29
|
21
|
21
|
28
|
43
|
37
|
29
|
36
|
52
|
43
|
20
|
9
|
22
|
21
|
15
|
28
|
30
|
33
|
21
|
15
|
15
|
11
|
18
|
|
|
2025/05
|
58
|
75
|
52
|
45
|
52
|
146
|
120
|
58
|
56
|
33
|
39
|
41
|
47
|
61
|
68
|
45
|
123
|
90
|
82
|
53
|
39
|
55
|
67
|
60
|
47
|
57
|
62
|
60
|
50
|
43
|
29
|
|
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