Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
25 Apr
Fri
26 Apr
Sat
27 Apr
Sun
28 Apr
Mon
29 Apr
Tue
30 Apr
Wed
1 May
Real-time AQI (Monitoring Station in Zhangjiakou)
人民公园
8331
PM2.5
115 *
PM10
73
O3
0.1
CO
2
SO2
9
NO2
五金库
7031
PM2.5
90 *
PM10
62
O3
0.3
CO
3
SO2
15
NO2
世纪豪园
7330
PM2.5
96 *
PM10
63
O3
0.3
CO
2
SO2
24
NO2
北泵房
7119
PM2.5
92 *
PM10
65
O3
0.7
CO
7
SO2
8
NO2
烟厂
6628
PM2.5
81 *
PM10
71
O3
0.4
CO
2
SO2
16
NO2
青少年活动中心
12942
PM2.5
208 *
PM10
58
O3
0.1
CO
2
SO2
9
NO2
Air quality in the last 12 months (Zhangjiakou)
|
2024/02
|
35
|
54
|
34
|
45
|
78
|
28
|
28
|
33
|
53
|
80
|
46
|
59
|
66
|
40
|
31
|
66
|
81
|
59
|
28
|
29
|
27
|
25
|
28
|
43
|
43
|
52
|
95
|
44
|
28
|
||
|
2024/01
|
49
|
44
|
32
|
47
|
41
|
21
|
31
|
54
|
26
|
42
|
54
|
45
|
68
|
24
|
34
|
46
|
76
|
86
|
94
|
36
|
22
|
22
|
23
|
23
|
26
|
40
|
31
|
42
|
56
|
103
|
28
|
|
2023/12
|
27
|
34
|
39
|
63
|
81
|
120
|
93
|
121
|
40
|
53
|
39
|
68
|
60
|
56
|
28
|
25
|
28
|
48
|
34
|
23
|
30
|
31
|
38
|
44
|
52
|
55
|
55
|
62
|
60
|
70
|
29
|
|
2023/11
|
69
|
107
|
36
|
68
|
45
|
29
|
36
|
34
|
21
|
19
|
19
|
20
|
22
|
31
|
56
|
27
|
19
|
36
|
67
|
59
|
72
|
77
|
22
|
22
|
42
|
90
|
27
|
24
|
23
|
21
|
|
|
2023/10
|
25
|
37
|
36
|
22
|
23
|
40
|
39
|
21
|
22
|
26
|
35
|
43
|
28
|
26
|
23
|
28
|
46
|
29
|
27
|
21
|
28
|
39
|
52
|
61
|
48
|
30
|
42
|
56
|
83
|
54
|
79
|
|
2023/09
|
25
|
29
|
36
|
35
|
44
|
45
|
48
|
38
|
26
|
30
|
25
|
24
|
30
|
42
|
48
|
45
|
51
|
29
|
21
|
21
|
27
|
25
|
27
|
29
|
40
|
46
|
36
|
26
|
26
|
19
|
|
|
2023/08
|
22
|
34
|
43
|
30
|
26
|
32
|
33
|
37
|
44
|
52
|
45
|
29
|
28
|
33
|
45
|
41
|
51
|
37
|
32
|
44
|
49
|
27
|
24
|
30
|
22
|
25
|
25
|
25
|
23
|
23
|
24
|
|
2023/07
|
54
|
73
|
56
|
43
|
66
|
38
|
29
|
26
|
29
|
31
|
42
|
35
|
24
|
32
|
32
|
29
|
44
|
73
|
70
|
68
|
45
|
31
|
31
|
39
|
48
|
46
|
41
|
32
|
35
|
23
|
15
|
|
2023/06
|
55
|
33
|
28
|
26
|
27
|
31
|
52
|
37
|
31
|
29
|
31
|
34
|
32
|
36
|
70
|
80
|
89
|
94
|
63
|
32
|
32
|
45
|
74
|
76
|
78
|
61
|
50
|
45
|
35
|
47
|
|
|
2023/05
|
43
|
76
|
74
|
59
|
31
|
30
|
30
|
31
|
43
|
49
|
46
|
39
|
31
|
48
|
54
|
116
|
57
|
43
|
161
|
250
|
50
|
28
|
33
|
44
|
40
|
42
|
56
|
42
|
55
|
41
|
50
|
|
2023/04
|
66
|
66
|
24
|
35
|
37
|
52
|
34
|
41
|
98
|
300
|
268
|
95
|
111
|
218
|
53
|
36
|
78
|
56
|
155
|
66
|
28
|
35
|
42
|
38
|
95
|
38
|
84
|
76
|
38
|
29
|
|
|
2023/03
|
23
|
32
|
39
|
39
|
67
|
52
|
54
|
98
|
100
|
225
|
91
|
78
|
72
|
180
|
80
|
40
|
56
|
32
|
47
|
79
|
115
|
317
|
65
|
48
|
36
|
40
|
48
|
46
|
35
|
44
|
69
|
|
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