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
18 Jan
Mon
19 Jan
Tue
20 Jan
Wed
21 Jan
Thu
22 Jan
Fri
23 Jan
Sat
24 Jan
Zhangjiakou Air quality rank
Real-time AQI (Monitoring Station in Zhangjiakou)
人民公园
2410
PM2.5
18
PM10
75
O3
0.3
CO
3
SO2
5
NO2
世纪豪园
273
PM2.5
17
PM10
84
O3
0.5
CO
1
SO2
3
NO2
Air quality in the last 12 months (Zhangjiakou)
|
2025/11
|
22
|
22
|
40
|
57
|
72
|
87
|
56
|
49
|
29
|
33
|
47
|
47
|
32
|
50
|
60
|
24
|
17
|
24
|
32
|
25
|
37
|
51
|
88
|
42
|
41
|
67
|
40
|
80
|
94
|
84
|
|
|
2025/10
|
38
|
44
|
38
|
40
|
45
|
37
|
32
|
23
|
11
|
14
|
27
|
30
|
41
|
41
|
46
|
32
|
13
|
17
|
14
|
18
|
25
|
36
|
58
|
63
|
39
|
15
|
26
|
41
|
67
|
26
|
21
|
|
2025/09
|
26
|
34
|
44
|
38
|
37
|
36
|
23
|
25
|
39
|
41
|
47
|
41
|
42
|
26
|
27
|
16
|
14
|
18
|
26
|
24
|
28
|
27
|
28
|
30
|
33
|
38
|
38
|
30
|
26
|
29
|
|
|
2025/08
|
46
|
44
|
35
|
42
|
31
|
23
|
24
|
25
|
20
|
23
|
34
|
32
|
26
|
34
|
46
|
27
|
31
|
37
|
28
|
29
|
30
|
32
|
27
|
25
|
31
|
28
|
18
|
31
|
40
|
36
|
27
|
|
2025/07
|
26
|
31
|
32
|
32
|
20
|
19
|
25
|
30
|
39
|
37
|
47
|
44
|
20
|
31
|
34
|
15
|
16
|
25
|
42
|
17
|
20
|
27
|
35
|
23
|
24
|
27
|
25
|
29
|
21
|
19
|
30
|
|
2025/06
|
46
|
18
|
16
|
20
|
31
|
20
|
21
|
24
|
32
|
27
|
44
|
67
|
43
|
34
|
15
|
20
|
31
|
40
|
33
|
21
|
22
|
31
|
38
|
40
|
46
|
52
|
46
|
45
|
41
|
32
|
|
|
2025/05
|
21
|
21
|
21
|
24
|
76
|
23
|
49
|
76
|
25
|
36
|
28
|
42
|
42
|
29
|
39
|
92
|
30
|
24
|
24
|
55
|
44
|
45
|
53
|
40
|
38
|
31
|
27
|
38
|
52
|
63
|
28
|
|
2025/04
|
28
|
19
|
44
|
58
|
20
|
43
|
43
|
32
|
31
|
38
|
97
|
50
|
49
|
36
|
33
|
74
|
62
|
18
|
23
|
48
|
67
|
35
|
45
|
20
|
28
|
47
|
19
|
23
|
40
|
27
|
|
|
2025/03
|
69
|
51
|
33
|
38
|
42
|
23
|
39
|
63
|
71
|
96
|
134
|
54
|
63
|
65
|
33
|
19
|
24
|
22
|
22
|
26
|
31
|
51
|
152
|
71
|
53
|
128
|
32
|
24
|
20
|
23
|
24
|
|
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
|
|
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