Air Quality
Excellent
No health implications.
13
PM2.5
30
PM10
17
O3
0.5
CO
2
SO2
47
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Sep
65
Good
Fri
19 Sep
77
Good
Sat
20 Sep
73
Good
Sun
21 Sep
71
Good
Mon
22 Sep
69
Good
Tue
23 Sep
69
Good
Wed
24 Sep
25
Excellent
Air quality in the last 12 months (Beidaihe)
|
2025/08
|
35
|
29
|
31
|
26
|
25
|
37
|
35
|
28
|
24
|
37
|
48
|
49
|
39
|
52
|
42
|
40
|
40
|
42
|
35
|
22
|
27
|
33
|
42
|
24
|
24
|
39
|
39
|
33
|
51
|
55
|
39
|
|
2025/07
|
37
|
40
|
23
|
43
|
49
|
28
|
37
|
45
|
41
|
42
|
40
|
33
|
28
|
28
|
31
|
25
|
31
|
27
|
27
|
33
|
45
|
39
|
31
|
32
|
37
|
39
|
34
|
32
|
24
|
28
|
32
|
|
2025/06
|
50
|
60
|
30
|
29
|
44
|
55
|
34
|
34
|
44
|
42
|
50
|
38
|
31
|
27
|
20
|
27
|
37
|
48
|
42
|
41
|
37
|
59
|
65
|
49
|
43
|
41
|
41
|
27
|
81
|
56
|
|
|
2025/05
|
48
|
46
|
35
|
53
|
48
|
38
|
54
|
61
|
38
|
37
|
69
|
77
|
69
|
56
|
54
|
47
|
48
|
44
|
76
|
76
|
64
|
71
|
52
|
40
|
48
|
62
|
86
|
60
|
57
|
69
|
65
|
|
2025/04
|
74
|
28
|
52
|
63
|
37
|
53
|
74
|
51
|
42
|
68
|
68
|
96
|
38
|
29
|
56
|
67
|
75
|
39
|
41
|
57
|
56
|
41
|
73
|
49
|
55
|
74
|
57
|
55
|
66
|
90
|
|
|
2025/03
|
110
|
58
|
29
|
51
|
74
|
43
|
48
|
83
|
155
|
100
|
112
|
64
|
57
|
50
|
32
|
29
|
43
|
32
|
53
|
45
|
43
|
55
|
86
|
98
|
76
|
95
|
87
|
36
|
42
|
45
|
73
|
|
2025/02
|
60
|
85
|
40
|
26
|
28
|
45
|
23
|
26
|
40
|
69
|
99
|
54
|
73
|
81
|
108
|
44
|
29
|
39
|
45
|
42
|
36
|
41
|
30
|
57
|
69
|
70
|
124
|
186
|
|||
|
2025/01
|
43
|
31
|
34
|
81
|
90
|
34
|
19
|
17
|
19
|
32
|
38
|
48
|
61
|
30
|
31
|
43
|
64
|
84
|
63
|
68
|
53
|
48
|
58
|
81
|
82
|
99
|
27
|
56
|
73
|
39
|
36
|
|
2024/12
|
72
|
26
|
42
|
21
|
31
|
26
|
28
|
24
|
50
|
41
|
26
|
65
|
44
|
22
|
32
|
30
|
21
|
21
|
47
|
54
|
32
|
40
|
39
|
55
|
94
|
27
|
23
|
29
|
65
|
73
|
36
|
|
2024/11
|
88
|
44
|
81
|
24
|
40
|
29
|
58
|
73
|
87
|
92
|
36
|
49
|
43
|
33
|
38
|
52
|
23
|
25
|
43
|
71
|
40
|
31
|
31
|
67
|
61
|
17
|
17
|
23
|
26
|
35
|
|
|
2024/10
|
16
|
17
|
29
|
55
|
69
|
62
|
27
|
32
|
52
|
40
|
61
|
60
|
55
|
59
|
62
|
25
|
47
|
37
|
21
|
20
|
43
|
33
|
40
|
117
|
96
|
76
|
55
|
59
|
87
|
43
|
79
|
|
2024/09
|
27
|
16
|
27
|
39
|
24
|
22
|
35
|
46
|
47
|
20
|
22
|
21
|
36
|
23
|
20
|
46
|
49
|
23
|
30
|
24
|
16
|
21
|
33
|
51
|
44
|
23
|
33
|
40
|
34
|
19
|
|
|
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