Air Quality
Excellent
No health implications.
17
PM2.5
40
PM10
87
O3
0.4
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Oct
43
Excellent
Sun
19 Oct
56
Good
Mon
20 Oct
57
Good
Tue
21 Oct
61
Good
Wed
22 Oct
56
Good
Thu
23 Oct
64
Good
Fri
24 Oct
29
Excellent
Real-time AQI (Monitoring Station in Dingxi)
将台街
4017
PM2.5
40
PM10
87
O3
0.4
CO
7
SO2
9
NO2
Air quality in the last 12 months (Dingxi)
|
2025/08
|
41
|
30
|
31
|
25
|
27
|
30
|
30
|
23
|
25
|
30
|
40
|
32
|
34
|
32
|
34
|
30
|
27
|
27
|
26
|
66
|
26
|
30
|
27
|
29
|
25
|
24
|
23
|
27
|
26
|
32
|
32
|
|
2025/07
|
29
|
25
|
28
|
26
|
30
|
30
|
26
|
26
|
30
|
32
|
27
|
29
|
28
|
36
|
47
|
49
|
36
|
32
|
86
|
30
|
27
|
24
|
29
|
31
|
27
|
28
|
28
|
25
|
31
|
26
|
33
|
|
2025/06
|
40
|
45
|
37
|
35
|
37
|
43
|
51
|
53
|
37
|
43
|
41
|
40
|
43
|
51
|
62
|
37
|
47
|
47
|
42
|
39
|
35
|
26
|
26
|
29
|
26
|
31
|
27
|
31
|
37
|
25
|
|
|
2025/05
|
68
|
129
|
119
|
147
|
115
|
143
|
92
|
66
|
71
|
50
|
44
|
60
|
84
|
51
|
45
|
63
|
144
|
56
|
64
|
57
|
75
|
86
|
48
|
41
|
29
|
52
|
33
|
26
|
30
|
105
|
66
|
|
2025/04
|
120
|
105
|
90
|
120
|
87
|
71
|
61
|
104
|
130
|
75
|
209
|
374
|
114
|
66
|
70
|
172
|
85
|
305
|
158
|
121
|
126
|
93
|
62
|
55
|
59
|
45
|
63
|
53
|
61
|
133
|
|
|
2025/03
|
70
|
47
|
51
|
65
|
50
|
50
|
64
|
69
|
64
|
55
|
207
|
98
|
98
|
53
|
50
|
56
|
48
|
41
|
53
|
60
|
59
|
60
|
77
|
79
|
102
|
415
|
104
|
95
|
77
|
90
|
79
|
|
2025/02
|
61
|
62
|
55
|
53
|
51
|
50
|
63
|
69
|
68
|
58
|
90
|
87
|
70
|
69
|
64
|
73
|
68
|
56
|
67
|
58
|
50
|
61
|
51
|
54
|
57
|
54
|
52
|
57
|
|||
|
2025/01
|
64
|
68
|
75
|
71
|
72
|
63
|
54
|
66
|
71
|
63
|
69
|
68
|
71
|
72
|
66
|
60
|
63
|
70
|
69
|
67
|
85
|
86
|
75
|
71
|
69
|
82
|
92
|
108
|
133
|
83
|
59
|
|
2024/12
|
66
|
73
|
57
|
56
|
61
|
62
|
55
|
52
|
47
|
68
|
63
|
58
|
58
|
78
|
81
|
74
|
79
|
63
|
78
|
84
|
62
|
53
|
62
|
67
|
76
|
77
|
58
|
69
|
54
|
57
|
57
|
|
2024/11
|
54
|
46
|
54
|
60
|
58
|
45
|
42
|
38
|
52
|
56
|
52
|
57
|
62
|
51
|
65
|
47
|
47
|
36
|
50
|
58
|
59
|
51
|
41
|
52
|
52
|
59
|
65
|
72
|
65
|
70
|
|
|
2024/10
|
34
|
40
|
36
|
32
|
38
|
53
|
43
|
38
|
51
|
48
|
40
|
28
|
37
|
32
|
38
|
41
|
37
|
51
|
39
|
37
|
46
|
43
|
52
|
41
|
45
|
46
|
46
|
52
|
41
|
37
|
43
|
|
2024/09
|
60
|
39
|
39
|
32
|
23
|
29
|
26
|
33
|
31
|
27
|
26
|
28
|
25
|
31
|
25
|
28
|
34
|
34
|
34
|
44
|
32
|
40
|
42
|
43
|
36
|
29
|
44
|
55
|
34
|
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