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
28 Jun
Mon
29 Jun
Tue
30 Jun
Wed
1 Jul
Thu
2 Jul
Fri
3 Jul
Sat
4 Jul
Real-time AQI (Monitoring Station in Zhangjiakou)
人民公园
6918
PM2.5
37
PM10
175
O3
0.5
CO
2
SO2
11
NO2
世纪豪园
5236 *
PM2.5
47
PM10
159
O3
0.7
CO
6
SO2
13
NO2
青少年活动中心
5912
PM2.5
62 *
PM10
138
O3
0.2
CO
5
SO2
7
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