Air Quality
Excellent
No health implications.
21
PM2.5
36
PM10
94
O3
0.6
CO
3
SO2
23
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Aug
86
Good
Sun
24 Aug
77
Good
Mon
25 Aug
69
Good
Tue
26 Aug
74
Good
Wed
27 Aug
66
Good
Thu
28 Aug
67
Good
Fri
29 Aug
44
Excellent
Air quality in the last 12 months (Longkou)
|
2025/06
|
43
|
35
|
34
|
27
|
42
|
54
|
41
|
34
|
36
|
25
|
24
|
19
|
13
|
10
|
19
|
29
|
33
|
36
|
18
|
21
|
41
|
39
|
33
|
33
|
34
|
44
|
38
|
44
|
21
|
20
|
|
|
2025/05
|
50
|
37
|
23
|
40
|
27
|
24
|
44
|
39
|
25
|
33
|
46
|
56
|
54
|
55
|
37
|
42
|
44
|
39
|
63
|
67
|
44
|
65
|
41
|
49
|
46
|
55
|
56
|
41
|
41
|
48
|
47
|
|
2025/04
|
67
|
38
|
37
|
47
|
41
|
50
|
76
|
59
|
38
|
58
|
50
|
96
|
62
|
37
|
46
|
63
|
85
|
41
|
32
|
54
|
32
|
39
|
46
|
55
|
51
|
62
|
49
|
45
|
57
|
69
|
|
|
2025/03
|
58
|
55
|
41
|
28
|
24
|
40
|
45
|
102
|
129
|
81
|
49
|
73
|
48
|
49
|
54
|
41
|
46
|
36
|
55
|
55
|
49
|
61
|
79
|
99
|
94
|
111
|
81
|
38
|
33
|
47
|
65
|
|
2025/02
|
44
|
74
|
39
|
23
|
27
|
46
|
36
|
24
|
32
|
63
|
51
|
53
|
63
|
82
|
107
|
72
|
31
|
29
|
37
|
48
|
40
|
26
|
38
|
43
|
70
|
87
|
115
|
127
|
|||
|
2025/01
|
76
|
51
|
49
|
92
|
163
|
48
|
34
|
28
|
27
|
28
|
51
|
67
|
87
|
70
|
26
|
48
|
53
|
99
|
111
|
55
|
95
|
60
|
49
|
55
|
75
|
78
|
39
|
30
|
73
|
54
|
46
|
|
2024/12
|
79
|
48
|
27
|
48
|
74
|
43
|
24
|
31
|
63
|
81
|
27
|
44
|
51
|
35
|
42
|
49
|
49
|
25
|
38
|
82
|
34
|
39
|
56
|
57
|
112
|
37
|
44
|
46
|
67
|
86
|
50
|
|
2024/11
|
81
|
77
|
66
|
42
|
32
|
51
|
54
|
45
|
50
|
63
|
68
|
76
|
57
|
34
|
46
|
54
|
29
|
20
|
42
|
73
|
73
|
26
|
25
|
50
|
38
|
22
|
24
|
32
|
38
|
58
|
|
|
2024/10
|
19
|
17
|
31
|
39
|
44
|
43
|
37
|
37
|
43
|
61
|
50
|
60
|
44
|
23
|
51
|
29
|
36
|
17
|
49
|
31
|
28
|
31
|
37
|
75
|
78
|
65
|
58
|
38
|
69
|
74
|
86
|
|
2024/09
|
39
|
27
|
26
|
30
|
22
|
20
|
27
|
40
|
24
|
23
|
21
|
18
|
33
|
26
|
16
|
30
|
31
|
26
|
21
|
24
|
33
|
30
|
30
|
33
|
42
|
34
|
27
|
39
|
26
|
20
|
|
|
2024/08
|
25
|
36
|
30
|
26
|
11
|
17
|
21
|
27
|
22
|
27
|
66
|
69
|
52
|
39
|
31
|
35
|
37
|
24
|
12
|
12
|
18
|
34
|
45
|
28
|
43
|
24
|
14
|
24
|
29
|
47
|
41
|
|
2024/07
|
44
|
23
|
35
|
36
|
25
|
14
|
29
|
35
|
46
|
51
|
62
|
64
|
62
|
38
|
31
|
13
|
20
|
38
|
44
|
15
|
26
|
18
|
16
|
28
|
13
|
13
|
14
|
20
|
20
|
29
|
28
|
|
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