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
17 Jun
Thu
18 Jun
Fri
19 Jun
Sat
20 Jun
Sun
21 Jun
Mon
22 Jun
Tue
23 Jun
Real-time AQI (Monitoring Station in Zhangjiakou)
人民公园
203
PM2.5
14
PM10
64
O3
0.3
CO
3
SO2
8
NO2
青少年活动中心
253
PM2.5
25
PM10
75
O3
0.2
CO
2
SO2
5
NO2
Air quality in the last 12 months (Zhangjiakou)
|
2026/05
|
43
|
36
|
26
|
31
|
50
|
47
|
29
|
33
|
54
|
36
|
32
|
61
|
71
|
72
|
65
|
49
|
30
|
32
|
39
|
41
|
44
|
37
|
48
|
58
|
53
|
40
|
39
|
30
|
28
|
36
|
39
|
|
2026/04
|
33
|
51
|
72
|
89
|
57
|
28
|
33
|
54
|
40
|
31
|
40
|
48
|
62
|
60
|
74
|
48
|
58
|
70
|
159
|
78
|
42
|
38
|
61
|
55
|
52
|
40
|
69
|
27
|
28
|
36
|
|
|
2026/03
|
86
|
85
|
59
|
47
|
43
|
26
|
39
|
52
|
28
|
36
|
27
|
57
|
81
|
26
|
36
|
52
|
73
|
28
|
29
|
37
|
85
|
46
|
59
|
87
|
61
|
42
|
28
|
42
|
39
|
27
|
41
|
|
2026/02
|
21
|
25
|
48
|
57
|
25
|
12
|
16
|
26
|
50
|
58
|
37
|
54
|
56
|
46
|
25
|
21
|
44
|
34
|
52
|
101
|
220
|
33
|
36
|
54
|
79
|
44
|
62
|
51
|
|||
|
2026/01
|
23
|
27
|
32
|
20
|
22
|
28
|
31
|
61
|
81
|
32
|
29
|
44
|
38
|
85
|
107
|
27
|
41
|
33
|
18
|
14
|
19
|
33
|
31
|
23
|
36
|
53
|
29
|
44
|
37
|
54
|
23
|
|
2025/12
|
22
|
24
|
32
|
25
|
42
|
60
|
45
|
31
|
54
|
51
|
28
|
51
|
26
|
52
|
59
|
39
|
40
|
71
|
71
|
20
|
29
|
63
|
39
|
25
|
22
|
41
|
43
|
50
|
28
|
23
|
22
|
|
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
|
|
|
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