Air Quality
Excellent
No health implications.
14
PM2.5
25
PM10
46
O3
0.6
CO
8
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
42
Excellent
Mon
18 May
51
Good
Tue
19 May
52
Good
Wed
20 May
60
Good
Thu
21 May
63
Good
Fri
22 May
65
Good
Sat
23 May
20
Excellent
Air quality in the last 12 months (Xichuan)
|
2026/04
|
47
|
51
|
60
|
83
|
75
|
81
|
72
|
45
|
34
|
56
|
61
|
55
|
46
|
48
|
45
|
43
|
59
|
60
|
98
|
114
|
44
|
23
|
32
|
38
|
42
|
51
|
58
|
66
|
48
|
41
|
|
|
2026/03
|
29
|
36
|
54
|
68
|
83
|
85
|
72
|
68
|
85
|
114
|
112
|
175
|
116
|
90
|
28
|
41
|
65
|
58
|
69
|
73
|
69
|
78
|
89
|
71
|
55
|
66
|
52
|
50
|
58
|
46
|
55
|
|
2026/02
|
93
|
77
|
87
|
108
|
98
|
96
|
78
|
86
|
80
|
90
|
95
|
87
|
80
|
75
|
76
|
36
|
67
|
59
|
60
|
49
|
64
|
122
|
152
|
66
|
44
|
30
|
51
|
53
|
|||
|
2026/01
|
56
|
90
|
122
|
86
|
64
|
42
|
46
|
50
|
53
|
68
|
66
|
66
|
86
|
98
|
72
|
86
|
118
|
83
|
60
|
62
|
74
|
84
|
85
|
120
|
118
|
128
|
128
|
132
|
116
|
95
|
94
|
|
2025/12
|
116
|
113
|
74
|
68
|
82
|
93
|
89
|
82
|
104
|
123
|
146
|
77
|
63
|
57
|
64
|
84
|
105
|
126
|
118
|
83
|
75
|
88
|
73
|
83
|
61
|
72
|
83
|
94
|
86
|
116
|
102
|
|
2025/11
|
45
|
56
|
91
|
115
|
125
|
91
|
27
|
37
|
62
|
76
|
70
|
65
|
67
|
88
|
84
|
71
|
25
|
25
|
29
|
53
|
65
|
61
|
57
|
76
|
56
|
84
|
133
|
80
|
70
|
72
|
|
|
2025/10
|
19
|
12
|
22
|
24
|
14
|
14
|
20
|
25
|
20
|
17
|
24
|
26
|
21
|
32
|
32
|
36
|
18
|
30
|
49
|
41
|
35
|
51
|
68
|
99
|
73
|
47
|
59
|
65
|
98
|
76
|
59
|
|
2025/09
|
26
|
29
|
33
|
23
|
21
|
36
|
34
|
19
|
22
|
31
|
14
|
18
|
23
|
28
|
30
|
31
|
21
|
18
|
21
|
21
|
28
|
20
|
13
|
24
|
30
|
23
|
16
|
19
|
19
|
24
|
|
|
2025/08
|
33
|
35
|
31
|
40
|
36
|
29
|
27
|
24
|
20
|
21
|
25
|
27
|
22
|
26
|
30
|
19
|
24
|
29
|
30
|
24
|
30
|
29
|
27
|
23
|
30
|
39
|
34
|
27
|
19
|
19
|
18
|
|
2025/07
|
19
|
20
|
18
|
24
|
22
|
27
|
25
|
34
|
31
|
31
|
46
|
50
|
38
|
29
|
28
|
37
|
33
|
35
|
37
|
33
|
28
|
33
|
18
|
22
|
27
|
29
|
30
|
26
|
28
|
30
|
36
|
|
2025/06
|
39
|
40
|
47
|
44
|
41
|
38
|
42
|
39
|
45
|
53
|
50
|
45
|
40
|
39
|
43
|
51
|
47
|
26
|
14
|
27
|
30
|
37
|
35
|
37
|
28
|
17
|
24
|
25
|
24
|
26
|
|
|
2025/05
|
75
|
69
|
60
|
41
|
74
|
248
|
146
|
68
|
73
|
43
|
33
|
43
|
49
|
43
|
46
|
44
|
93
|
122
|
78
|
66
|
61
|
73
|
70
|
63
|
58
|
49
|
56
|
57
|
55
|
45
|
34
|
|
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