Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
PM2.5
PM10
O3
CO
SO2
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
17 Apr
Fri
18 Apr
Sat
19 Apr
Sun
20 Apr
Mon
21 Apr
Tue
22 Apr
Wed
23 Apr
Real-time AQI (Monitoring Station in Zhangjiakou)
人民公园
9451
PM2.5
138 *
PM10
70
O3
0.4
CO
3
SO2
15
NO2
五金库
10145
PM2.5
152 *
PM10
73
O3
0.6
CO
5
SO2
18
NO2
世纪豪园
10346
PM2.5
155 *
PM10
70
O3
0.1
CO
8
SO2
23
NO2
烟厂
10659
PM2.5
161 *
PM10
59
O3
0.5
CO
4
SO2
19
NO2
青少年活动中心
10751
PM2.5
164 *
PM10
110
O3
0.4
CO
7
SO2
2
NO2
Air quality in the last 12 months (Zhangjiakou)
|
2025/02
|
79
|
33
|
17
|
24
|
30
|
55
|
16
|
15
|
25
|
52
|
55
|
39
|
50
|
45
|
69
|
22
|
18
|
17
|
16
|
17
|
15
|
18
|
15
|
35
|
34
|
36
|
65
|
58
|
|||
|
2025/01
|
33
|
25
|
29
|
35
|
39
|
16
|
15
|
13
|
15
|
23
|
39
|
31
|
33
|
24
|
26
|
42
|
43
|
45
|
36
|
42
|
25
|
39
|
62
|
65
|
92
|
125
|
16
|
22
|
56
|
60
|
82
|
|
2024/12
|
36
|
17
|
20
|
18
|
18
|
18
|
14
|
19
|
25
|
28
|
34
|
33
|
32
|
28
|
29
|
29
|
22
|
16
|
34
|
32
|
14
|
22
|
28
|
45
|
55
|
23
|
21
|
44
|
75
|
66
|
37
|
|
2024/11
|
54
|
52
|
34
|
19
|
21
|
29
|
55
|
102
|
159
|
79
|
53
|
49
|
82
|
61
|
44
|
54
|
32
|
33
|
66
|
52
|
24
|
27
|
50
|
99
|
35
|
25
|
19
|
15
|
20
|
45
|
|
|
2024/10
|
12
|
15
|
23
|
38
|
52
|
46
|
15
|
27
|
37
|
28
|
38
|
48
|
81
|
60
|
44
|
49
|
64
|
26
|
17
|
24
|
38
|
18
|
37
|
43
|
65
|
93
|
20
|
30
|
27
|
41
|
64
|
|
2024/09
|
19
|
16
|
21
|
32
|
14
|
20
|
19
|
23
|
31
|
16
|
22
|
19
|
23
|
12
|
20
|
20
|
19
|
37
|
53
|
20
|
11
|
15
|
28
|
36
|
16
|
29
|
56
|
56
|
36
|
13
|
|
|
2024/08
|
21
|
28
|
31
|
30
|
28
|
25
|
35
|
34
|
29
|
46
|
13
|
13
|
16
|
26
|
32
|
37
|
32
|
28
|
27
|
18
|
17
|
18
|
28
|
30
|
26
|
17
|
23
|
27
|
32
|
33
|
44
|
|
2024/07
|
25
|
34
|
28
|
32
|
34
|
26
|
29
|
35
|
56
|
54
|
53
|
46
|
30
|
47
|
52
|
28
|
21
|
25
|
31
|
26
|
46
|
47
|
44
|
37
|
23
|
23
|
37
|
28
|
22
|
24
|
20
|
|
2024/06
|
22
|
25
|
34
|
43
|
48
|
40
|
18
|
31
|
22
|
25
|
30
|
32
|
32
|
22
|
23
|
25
|
33
|
43
|
44
|
53
|
43
|
337
|
129
|
19
|
21
|
47
|
61
|
52
|
51
|
32
|
|
|
2024/05
|
31
|
38
|
47
|
61
|
51
|
41
|
39
|
35
|
58
|
148
|
76
|
31
|
33
|
49
|
24
|
52
|
49
|
67
|
68
|
46
|
53
|
64
|
77
|
48
|
31
|
36
|
25
|
32
|
50
|
38
|
21
|
|
2024/04
|
68
|
74
|
39
|
55
|
56
|
32
|
35
|
59
|
58
|
51
|
46
|
78
|
75
|
75
|
199
|
40
|
39
|
50
|
81
|
28
|
41
|
75
|
27
|
43
|
108
|
88
|
168
|
45
|
24
|
26
|
|
|
2024/03
|
27
|
79
|
38
|
63
|
57
|
16
|
31
|
26
|
40
|
57
|
38
|
26
|
34
|
42
|
76
|
110
|
34
|
200
|
66
|
29
|
65
|
47
|
56
|
53
|
42
|
77
|
186
|
201
|
97
|
34
|
30
|
|
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