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
21 Aug
Sat
22 Aug
Sun
23 Aug
Mon
24 Aug
Tue
25 Aug
Wed
26 Aug
Thu
27 Aug
Real-time AQI (Monitoring Station in Zhangjiakou)
人民公园
4330
PM2.5
39
PM10
120
O3
0.5
CO
2
SO2
10
NO2
世纪豪园
5824
PM2.5
60 *
PM10
116
O3
0.8
CO
5
SO2
12
NO2
青少年活动中心
3719
PM2.5
27
PM10
117
O3
0.4
CO
5
SO2
4
NO2
Air quality in the last 12 months (Zhangjiakou)
|
2026/07
|
33
|
34
|
51
|
34
|
28
|
25
|
26
|
27
|
34
|
28
|
36
|
39
|
45
|
28
|
35
|
27
|
37
|
31
|
32
|
38
|
34
|
32
|
33
|
32
|
36
|
39
|
37
|
37
|
30
|
29
|
30
|
|
2026/06
|
35
|
46
|
29
|
24
|
24
|
23
|
22
|
22
|
20
|
20
|
26
|
34
|
33
|
30
|
44
|
35
|
33
|
41
|
50
|
26
|
28
|
36
|
36
|
25
|
29
|
30
|
35
|
40
|
55
|
36
|
|
|
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
|
|
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