Air Quality
Excellent
No health implications.
12
PM2.5
40
PM10
116
O3
0.2
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Apr
61
Good
Wed
22 Apr
57
Good
Thu
23 Apr
57
Good
Fri
24 Apr
70
Good
Sat
25 Apr
62
Good
Sun
26 Apr
65
Good
Mon
27 Apr
49
Excellent
Air quality in the last 12 months (Zhangbei)
|
2026/03
|
81
|
79
|
57
|
42
|
40
|
26
|
34
|
46
|
28
|
34
|
26
|
48
|
69
|
27
|
35
|
50
|
62
|
28
|
30
|
36
|
78
|
43
|
48
|
77
|
54
|
31
|
27
|
39
|
36
|
27
|
37
|
|
2026/02
|
16
|
22
|
39
|
54
|
24
|
12
|
17
|
26
|
42
|
49
|
34
|
54
|
51
|
41
|
28
|
28
|
96
|
38
|
53
|
107
|
227
|
29
|
38
|
47
|
67
|
37
|
62
|
51
|
|||
|
2026/01
|
32
|
27
|
30
|
17
|
18
|
26
|
30
|
57
|
71
|
30
|
29
|
44
|
36
|
81
|
95
|
24
|
36
|
30
|
20
|
17
|
22
|
35
|
34
|
23
|
36
|
51
|
26
|
42
|
25
|
38
|
19
|
|
2025/12
|
22
|
24
|
29
|
23
|
39
|
55
|
37
|
29
|
44
|
42
|
23
|
47
|
24
|
51
|
57
|
38
|
34
|
53
|
55
|
21
|
31
|
55
|
35
|
25
|
22
|
38
|
44
|
45
|
26
|
23
|
23
|
|
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
|
|
|
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