Air Quality
Excellent
No health implications.
6
PM2.5
50
PM10
72
O3
0.4
CO
9
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Apr
164
Moderate
Sun
13 Apr
112
Light
Mon
14 Apr
64
Good
Tue
15 Apr
64
Good
Wed
16 Apr
87
Good
Thu
17 Apr
62
Good
Fri
18 Apr
42
Excellent
Air quality in the last 12 months (Jiuyuan)
|
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
|
|
|
2024/08
|
33
|
42
|
23
|
27
|
31
|
33
|
24
|
31
|
47
|
39
|
11
|
11
|
21
|
27
|
35
|
35
|
26
|
39
|
22
|
25
|
24
|
29
|
38
|
54
|
28
|
12
|
28
|
41
|
45
|
49
|
43
|
|
2024/07
|
19
|
29
|
35
|
26
|
52
|
42
|
31
|
44
|
52
|
41
|
54
|
36
|
33
|
48
|
41
|
13
|
27
|
28
|
50
|
38
|
118
|
57
|
47
|
49
|
38
|
33
|
27
|
25
|
38
|
22
|
28
|
|
2024/06
|
44
|
62
|
45
|
33
|
38
|
41
|
35
|
49
|
48
|
37
|
64
|
65
|
53
|
16
|
24
|
37
|
55
|
45
|
37
|
41
|
45
|
238
|
168
|
80
|
40
|
66
|
52
|
51
|
20
|
29
|
|
|
2024/05
|
45
|
59
|
57
|
43
|
51
|
46
|
37
|
55
|
65
|
143
|
48
|
34
|
48
|
95
|
45
|
80
|
83
|
114
|
165
|
60
|
67
|
63
|
64
|
55
|
44
|
19
|
36
|
48
|
70
|
53
|
17
|
|
2024/04
|
75
|
51
|
45
|
66
|
46
|
49
|
56
|
66
|
66
|
86
|
83
|
98
|
69
|
287
|
116
|
46
|
69
|
80
|
65
|
28
|
65
|
160
|
40
|
99
|
245
|
76
|
120
|
38
|
21
|
28
|
|
|
2024/03
|
60
|
84
|
66
|
73
|
30
|
39
|
43
|
47
|
65
|
81
|
32
|
42
|
68
|
76
|
82
|
234
|
50
|
157
|
44
|
55
|
113
|
61
|
81
|
70
|
61
|
76
|
248
|
338
|
108
|
42
|
66
|
|
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