Air Quality
Excellent
No health implications.
16
PM2.5
27
PM10
14
O3
0.9
CO
8
SO2
56
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Sep
60
Good
Sat
13 Sep
89
Good
Sun
14 Sep
61
Good
Mon
15 Sep
63
Good
Tue
16 Sep
56
Good
Wed
17 Sep
15
Excellent
Thu
18 Sep
44
Excellent
Air quality in the last 12 months (Jiuyuan)
|
2025/08
|
31
|
35
|
34
|
34
|
46
|
39
|
32
|
26
|
30
|
26
|
42
|
45
|
33
|
45
|
43
|
17
|
35
|
29
|
15
|
29
|
35
|
39
|
25
|
30
|
38
|
31
|
23
|
33
|
35
|
38
|
33
|
|
2025/07
|
28
|
26
|
35
|
39
|
16
|
27
|
35
|
33
|
23
|
31
|
23
|
51
|
39
|
41
|
41
|
16
|
25
|
46
|
20
|
12
|
24
|
40
|
30
|
27
|
18
|
21
|
20
|
32
|
17
|
20
|
25
|
|
2025/06
|
29
|
24
|
23
|
20
|
33
|
32
|
30
|
29
|
33
|
25
|
47
|
56
|
28
|
24
|
16
|
26
|
41
|
41
|
17
|
25
|
32
|
30
|
39
|
44
|
44
|
27
|
38
|
34
|
39
|
34
|
|
|
2025/05
|
49
|
43
|
29
|
82
|
153
|
61
|
74
|
71
|
30
|
33
|
52
|
65
|
70
|
18
|
42
|
167
|
29
|
64
|
63
|
65
|
41
|
22
|
42
|
53
|
52
|
37
|
41
|
50
|
55
|
41
|
16
|
|
2025/04
|
46
|
38
|
108
|
70
|
37
|
84
|
57
|
50
|
45
|
61
|
202
|
67
|
55
|
26
|
60
|
185
|
51
|
44
|
60
|
68
|
61
|
74
|
51
|
34
|
50
|
57
|
17
|
47
|
65
|
60
|
|
|
2025/03
|
82
|
41
|
44
|
57
|
41
|
34
|
50
|
71
|
85
|
123
|
207
|
87
|
63
|
62
|
26
|
41
|
34
|
29
|
45
|
47
|
64
|
87
|
229
|
186
|
117
|
211
|
111
|
37
|
27
|
27
|
48
|
|
2025/02
|
83
|
26
|
20
|
36
|
45
|
81
|
28
|
31
|
53
|
74
|
66
|
78
|
64
|
89
|
86
|
34
|
62
|
26
|
39
|
31
|
42
|
22
|
30
|
65
|
57
|
73
|
82
|
77
|
|||
|
2025/01
|
79
|
29
|
56
|
84
|
76
|
42
|
47
|
23
|
44
|
61
|
63
|
41
|
82
|
24
|
65
|
76
|
79
|
86
|
72
|
82
|
81
|
82
|
119
|
110
|
112
|
138
|
28
|
70
|
319
|
131
|
102
|
|
2024/12
|
52
|
33
|
59
|
34
|
45
|
31
|
29
|
58
|
61
|
75
|
59
|
97
|
86
|
62
|
67
|
73
|
42
|
46
|
75
|
41
|
26
|
63
|
63
|
74
|
62
|
33
|
61
|
66
|
204
|
89
|
71
|
|
2024/11
|
69
|
72
|
32
|
23
|
54
|
59
|
69
|
72
|
71
|
45
|
71
|
65
|
67
|
73
|
76
|
88
|
47
|
61
|
50
|
79
|
70
|
69
|
76
|
59
|
44
|
67
|
51
|
49
|
68
|
64
|
|
|
2024/10
|
21
|
30
|
47
|
52
|
55
|
25
|
40
|
53
|
47
|
37
|
57
|
58
|
33
|
44
|
26
|
66
|
75
|
21
|
29
|
33
|
37
|
31
|
45
|
62
|
57
|
42
|
32
|
54
|
49
|
46
|
56
|
|
2024/09
|
14
|
22
|
41
|
22
|
16
|
19
|
37
|
41
|
50
|
34
|
27
|
31
|
17
|
14
|
29
|
26
|
31
|
48
|
53
|
13
|
15
|
29
|
46
|
47
|
37
|
48
|
54
|
56
|
22
|
33
|
|
|
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