Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Mar
Sun
30 Mar
Mon
31 Mar
Tue
1 Apr
Wed
2 Apr
Thu
3 Apr
Fri
4 Apr
Real-time AQI (Monitoring Station in Hohhot)
呼市一监
283
PM2.5
9
PM10
89
O3
0.5
CO
8
SO2
5
NO2
小召
266
PM2.5
19
PM10
81
O3
0.4
CO
4
SO2
15
NO2
如意水处理厂
256
PM2.5
13
PM10
80
O3
0.4
CO
6
SO2
12
NO2
二十九中
273
PM2.5
13
PM10
84
O3
0.7
CO
3
SO2
9
NO2
工大金川校区
273
PM2.5
15
PM10
84
O3
0.5
CO
5
SO2
12
NO2
化肥厂生活区
283
PM2.5
10
PM10
87
O3
0.3
CO
5
SO2
10
NO2
红旗小学
253
PM2.5
9
PM10
78
O3
0.4
CO
3
SO2
18
NO2
海东办
256
PM2.5
9
PM10
77
O3
0.5
CO
5
SO2
8
NO2
Air quality in the last 12 months (Hohhot)
|
2025/02
|
96
|
23
|
18
|
28
|
43
|
76
|
18
|
28
|
43
|
66
|
59
|
54
|
88
|
73
|
84
|
24
|
36
|
16
|
12
|
23
|
24
|
16
|
29
|
58
|
63
|
72
|
90
|
73
|
|||
|
2025/01
|
94
|
36
|
48
|
71
|
64
|
27
|
35
|
10
|
30
|
46
|
53
|
41
|
77
|
16
|
44
|
65
|
64
|
88
|
78
|
74
|
47
|
59
|
78
|
46
|
97
|
95
|
24
|
72
|
245
|
281
|
121
|
|
2024/12
|
48
|
25
|
52
|
42
|
45
|
20
|
19
|
41
|
56
|
55
|
40
|
68
|
58
|
59
|
70
|
65
|
29
|
23
|
55
|
40
|
32
|
41
|
48
|
70
|
50
|
35
|
35
|
74
|
153
|
138
|
56
|
|
2024/11
|
93
|
94
|
28
|
24
|
47
|
53
|
66
|
73
|
93
|
30
|
65
|
66
|
58
|
92
|
75
|
62
|
41
|
51
|
64
|
100
|
103
|
52
|
75
|
67
|
18
|
19
|
29
|
25
|
49
|
54
|
|
|
2024/10
|
12
|
29
|
44
|
55
|
59
|
30
|
31
|
52
|
49
|
37
|
57
|
60
|
49
|
55
|
18
|
73
|
99
|
16
|
17
|
28
|
33
|
30
|
56
|
57
|
57
|
18
|
25
|
52
|
54
|
43
|
53
|
|
2024/09
|
11
|
20
|
35
|
18
|
11
|
13
|
25
|
34
|
35
|
15
|
16
|
34
|
26
|
11
|
21
|
14
|
31
|
72
|
52
|
7
|
9
|
23
|
51
|
50
|
20
|
44
|
61
|
61
|
26
|
14
|
|
|
2024/08
|
18
|
41
|
28
|
34
|
33
|
31
|
34
|
28
|
37
|
68
|
9
|
10
|
16
|
25
|
43
|
47
|
25
|
41
|
26
|
21
|
17
|
22
|
30
|
33
|
20
|
11
|
22
|
38
|
43
|
41
|
39
|
|
2024/07
|
30
|
27
|
29
|
16
|
31
|
35
|
43
|
44
|
38
|
47
|
52
|
35
|
23
|
43
|
49
|
10
|
24
|
31
|
44
|
36
|
99
|
86
|
51
|
44
|
40
|
26
|
29
|
16
|
39
|
27
|
28
|
|
2024/06
|
33
|
79
|
49
|
33
|
31
|
39
|
18
|
39
|
38
|
49
|
52
|
61
|
38
|
16
|
18
|
27
|
47
|
58
|
35
|
45
|
77
|
330
|
186
|
49
|
29
|
63
|
59
|
57
|
19
|
29
|
|
|
2024/05
|
43
|
50
|
57
|
51
|
65
|
35
|
30
|
38
|
67
|
108
|
51
|
29
|
48
|
51
|
40
|
67
|
72
|
114
|
124
|
52
|
62
|
77
|
74
|
47
|
39
|
25
|
26
|
39
|
57
|
47
|
12
|
|
2024/04
|
76
|
40
|
29
|
45
|
53
|
41
|
43
|
70
|
61
|
69
|
84
|
78
|
68
|
191
|
148
|
39
|
60
|
56
|
44
|
21
|
52
|
103
|
39
|
77
|
232
|
90
|
142
|
30
|
14
|
30
|
|
|
2024/03
|
53
|
91
|
52
|
65
|
24
|
29
|
31
|
38
|
62
|
76
|
31
|
38
|
56
|
65
|
76
|
141
|
47
|
124
|
40
|
46
|
98
|
64
|
60
|
47
|
57
|
74
|
206
|
313
|
76
|
48
|
49
|
|
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
*: primary pollution