Air Quality
Excellent
No health implications.
17
PM2.5
23
PM10
67
O3
0.3
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Dec
63
Good
Sat
20 Dec
62
Good
Sun
21 Dec
62
Good
Mon
22 Dec
73
Good
Tue
23 Dec
63
Good
Wed
24 Dec
63
Good
Thu
25 Dec
39
Excellent
Air quality in the last 12 months (Zhangbei)
|
2025/11
|
18
|
19
|
35
|
50
|
55
|
65
|
53
|
46
|
28
|
28
|
41
|
43
|
27
|
44
|
57
|
21
|
16
|
23
|
32
|
27
|
36
|
47
|
86
|
37
|
40
|
66
|
39
|
80
|
91
|
80
|
|
|
2025/10
|
37
|
38
|
35
|
37
|
41
|
40
|
26
|
23
|
13
|
17
|
27
|
28
|
38
|
37
|
35
|
26
|
11
|
18
|
14
|
16
|
23
|
32
|
52
|
51
|
27
|
13
|
19
|
35
|
49
|
17
|
14
|
|
2025/09
|
24
|
34
|
49
|
39
|
45
|
31
|
19
|
20
|
36
|
40
|
44
|
35
|
39
|
23
|
22
|
15
|
12
|
16
|
21
|
19
|
21
|
27
|
26
|
26
|
27
|
31
|
34
|
26
|
22
|
25
|
|
|
2025/08
|
55
|
55
|
48
|
63
|
47
|
18
|
19
|
38
|
20
|
21
|
33
|
33
|
25
|
30
|
42
|
30
|
32
|
44
|
39
|
32
|
40
|
31
|
31
|
23
|
23
|
26
|
24
|
30
|
36
|
33
|
24
|
|
2025/07
|
25
|
24
|
35
|
31
|
19
|
15
|
22
|
25
|
34
|
39
|
40
|
38
|
15
|
23
|
37
|
12
|
15
|
21
|
41
|
18
|
16
|
21
|
31
|
23
|
28
|
32
|
30
|
27
|
26
|
18
|
30
|
|
2025/06
|
36
|
15
|
14
|
16
|
21
|
15
|
16
|
16
|
20
|
23
|
34
|
58
|
37
|
25
|
12
|
19
|
23
|
30
|
25
|
16
|
15
|
26
|
28
|
34
|
39
|
43
|
39
|
33
|
34
|
25
|
|
|
2025/05
|
18
|
18
|
15
|
20
|
73
|
20
|
40
|
66
|
28
|
36
|
21
|
31
|
33
|
24
|
30
|
74
|
25
|
18
|
16
|
45
|
31
|
35
|
40
|
35
|
35
|
23
|
19
|
28
|
42
|
55
|
24
|
|
2025/04
|
21
|
18
|
43
|
50
|
18
|
34
|
33
|
28
|
27
|
30
|
75
|
39
|
43
|
31
|
26
|
68
|
55
|
15
|
18
|
39
|
54
|
32
|
37
|
17
|
20
|
31
|
14
|
16
|
31
|
20
|
|
|
2025/03
|
58
|
25
|
23
|
38
|
41
|
21
|
32
|
55
|
60
|
83
|
119
|
48
|
49
|
52
|
32
|
21
|
22
|
19
|
17
|
21
|
29
|
41
|
126
|
66
|
42
|
113
|
29
|
22
|
21
|
17
|
17
|
|
2025/02
|
71
|
28
|
18
|
24
|
32
|
54
|
20
|
18
|
26
|
45
|
49
|
38
|
46
|
41
|
66
|
18
|
18
|
16
|
16
|
17
|
17
|
18
|
17
|
36
|
35
|
33
|
56
|
45
|
|||
|
2025/01
|
32
|
24
|
28
|
27
|
39
|
16
|
18
|
15
|
20
|
27
|
37
|
29
|
31
|
23
|
31
|
47
|
40
|
43
|
39
|
41
|
27
|
33
|
53
|
52
|
78
|
104
|
19
|
27
|
93
|
56
|
74
|
|
2024/12
|
34
|
18
|
20
|
18
|
19
|
22
|
16
|
24
|
23
|
27
|
33
|
33
|
31
|
30
|
32
|
28
|
24
|
18
|
29
|
35
|
17
|
25
|
27
|
44
|
54
|
27
|
23
|
45
|
74
|
59
|
36
|
|
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
Air quality source: CNEMC
*: primary pollution