Air Quality
Excellent
No health implications.
20
PM2.5
48
PM10
21
O3
0.3
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Sep
38
Excellent
Mon
8 Sep
39
Excellent
Tue
9 Sep
53
Good
Wed
10 Sep
50
Excellent
Thu
11 Sep
47
Excellent
Fri
12 Sep
27
Excellent
Sat
13 Sep
17
Excellent
Air quality in the last 12 months (Xiahe)
|
2025/08
|
38
|
33
|
33
|
10
|
20
|
22
|
20
|
19
|
22
|
26
|
32
|
27
|
29
|
36
|
31
|
36
|
36
|
31
|
17
|
30
|
11
|
17
|
20
|
32
|
30
|
18
|
10
|
11
|
22
|
33
|
37
|
|
2025/07
|
39
|
29
|
28
|
20
|
25
|
19
|
31
|
37
|
36
|
36
|
32
|
27
|
34
|
39
|
38
|
42
|
43
|
27
|
50
|
19
|
21
|
25
|
32
|
26
|
22
|
25
|
37
|
36
|
27
|
27
|
49
|
|
2025/06
|
21
|
25
|
22
|
28
|
43
|
43
|
38
|
42
|
20
|
38
|
38
|
38
|
42
|
30
|
44
|
45
|
51
|
37
|
33
|
38
|
34
|
18
|
27
|
16
|
24
|
32
|
29
|
34
|
34
|
25
|
|
|
2025/05
|
39
|
67
|
153
|
75
|
47
|
59
|
86
|
79
|
48
|
36
|
33
|
45
|
51
|
32
|
20
|
42
|
40
|
47
|
44
|
37
|
40
|
56
|
57
|
45
|
33
|
40
|
34
|
35
|
43
|
71
|
57
|
|
2025/04
|
85
|
84
|
73
|
97
|
87
|
63
|
56
|
96
|
76
|
69
|
72
|
54
|
45
|
54
|
59
|
69
|
61
|
107
|
79
|
77
|
91
|
67
|
52
|
45
|
39
|
29
|
32
|
45
|
45
|
51
|
|
|
2025/03
|
57
|
51
|
51
|
45
|
46
|
56
|
80
|
58
|
49
|
54
|
96
|
110
|
57
|
40
|
49
|
42
|
42
|
50
|
58
|
56
|
49
|
56
|
56
|
43
|
42
|
177
|
158
|
60
|
72
|
85
|
85
|
|
2025/02
|
46
|
47
|
41
|
43
|
53
|
53
|
52
|
53
|
52
|
55
|
66
|
69
|
59
|
62
|
49
|
47
|
43
|
46
|
55
|
54
|
54
|
50
|
53
|
48
|
44
|
43
|
48
|
47
|
|||
|
2025/01
|
45
|
55
|
49
|
60
|
45
|
51
|
61
|
65
|
69
|
65
|
45
|
40
|
39
|
49
|
62
|
50
|
52
|
51
|
49
|
45
|
48
|
58
|
63
|
66
|
70
|
63
|
37
|
39
|
69
|
45
|
38
|
|
2024/12
|
36
|
40
|
44
|
49
|
49
|
46
|
50
|
50
|
48
|
48
|
47
|
46
|
40
|
39
|
30
|
27
|
26
|
43
|
51
|
50
|
66
|
69
|
68
|
88
|
82
|
56
|
63
|
56
|
59
|
50
|
45
|
|
2024/11
|
29
|
28
|
31
|
33
|
29
|
31
|
30
|
33
|
38
|
37
|
44
|
41
|
45
|
36
|
41
|
37
|
37
|
39
|
37
|
32
|
35
|
26
|
33
|
39
|
48
|
35
|
36
|
37
|
38
|
37
|
|
|
2024/10
|
20
|
27
|
34
|
37
|
40
|
34
|
34
|
35
|
31
|
22
|
29
|
28
|
29
|
28
|
35
|
22
|
22
|
26
|
31
|
29
|
46
|
39
|
35
|
35
|
41
|
32
|
29
|
29
|
40
|
40
|
24
|
|
2024/09
|
34
|
28
|
25
|
16
|
15
|
17
|
19
|
30
|
14
|
16
|
18
|
21
|
13
|
19
|
20
|
15
|
21
|
22
|
26
|
15
|
18
|
30
|
31
|
33
|
41
|
35
|
41
|
43
|
22
|
20
|
|
|
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