Air Quality
Excellent
No health implications.
23
PM2.5
49
PM10
99
O3
0.3
CO
7
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 May
81
Good
Sun
25 May
79
Good
Mon
26 May
69
Good
Tue
27 May
73
Good
Wed
28 May
82
Good
Thu
29 May
27
Excellent
Fri
30 May
29
Excellent
Air quality in the last 12 months (Xihe)
|
2025/04
|
87
|
87
|
77
|
80
|
88
|
60
|
43
|
76
|
77
|
68
|
86
|
445
|
145
|
77
|
63
|
74
|
67
|
173
|
129
|
67
|
80
|
94
|
59
|
54
|
52
|
41
|
46
|
53
|
53
|
68
|
|
|
2025/03
|
56
|
54
|
44
|
38
|
40
|
47
|
55
|
59
|
38
|
32
|
109
|
104
|
84
|
37
|
53
|
49
|
53
|
47
|
48
|
55
|
49
|
48
|
55
|
46
|
45
|
181
|
153
|
93
|
89
|
71
|
69
|
|
2025/02
|
61
|
59
|
44
|
46
|
51
|
47
|
60
|
62
|
52
|
43
|
58
|
78
|
62
|
55
|
54
|
56
|
46
|
38
|
57
|
50
|
56
|
46
|
47
|
46
|
49
|
43
|
39
|
45
|
|||
|
2025/01
|
76
|
65
|
65
|
70
|
66
|
64
|
58
|
60
|
54
|
57
|
57
|
61
|
60
|
64
|
55
|
58
|
62
|
65
|
70
|
73
|
65
|
70
|
98
|
92
|
68
|
67
|
71
|
83
|
128
|
88
|
80
|
|
2024/12
|
66
|
71
|
68
|
58
|
54
|
59
|
53
|
49
|
39
|
51
|
60
|
53
|
48
|
55
|
64
|
66
|
69
|
58
|
51
|
60
|
61
|
54
|
54
|
58
|
60
|
61
|
58
|
62
|
67
|
60
|
58
|
|
2024/11
|
37
|
35
|
46
|
48
|
42
|
37
|
37
|
35
|
43
|
46
|
46
|
50
|
45
|
36
|
42
|
44
|
39
|
24
|
32
|
45
|
47
|
40
|
42
|
34
|
40
|
53
|
57
|
60
|
59
|
66
|
|
|
2024/10
|
27
|
30
|
32
|
26
|
35
|
42
|
41
|
39
|
38
|
36
|
38
|
28
|
28
|
30
|
28
|
36
|
30
|
42
|
35
|
25
|
36
|
42
|
49
|
40
|
45
|
33
|
36
|
42
|
43
|
38
|
34
|
|
2024/09
|
29
|
36
|
35
|
26
|
20
|
31
|
27
|
31
|
26
|
25
|
29
|
33
|
28
|
31
|
38
|
34
|
31
|
32
|
32
|
31
|
28
|
34
|
38
|
37
|
32
|
26
|
46
|
56
|
31
|
24
|
|
|
2024/08
|
31
|
37
|
24
|
21
|
24
|
27
|
26
|
27
|
57
|
55
|
45
|
36
|
33
|
35
|
22
|
29
|
33
|
30
|
31
|
27
|
34
|
38
|
41
|
41
|
35
|
33
|
31
|
30
|
32
|
29
|
34
|
|
2024/07
|
27
|
29
|
22
|
22
|
34
|
43
|
23
|
20
|
29
|
33
|
31
|
30
|
27
|
27
|
17
|
19
|
20
|
23
|
19
|
18
|
29
|
24
|
20
|
65
|
68
|
57
|
51
|
41
|
31
|
31
|
29
|
|
2024/06
|
48
|
34
|
36
|
30
|
31
|
30
|
26
|
32
|
31
|
36
|
37
|
39
|
40
|
43
|
44
|
28
|
26
|
24
|
26
|
29
|
25
|
32
|
31
|
33
|
31
|
27
|
20
|
24
|
33
|
36
|
|
|
2024/05
|
32
|
27
|
25
|
35
|
46
|
51
|
50
|
41
|
37
|
45
|
60
|
61
|
55
|
52
|
41
|
52
|
53
|
48
|
35
|
44
|
34
|
39
|
44
|
43
|
35
|
42
|
47
|
41
|
33
|
46
|
67
|
|
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