Air Quality
Excellent
No health implications.
5
PM2.5
13
PM10
74
O3
0.3
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Mar
57
Good
Sat
22 Mar
53
Good
Sun
23 Mar
74
Good
Mon
24 Mar
53
Good
Tue
25 Mar
58
Good
Wed
26 Mar
57
Good
Thu
27 Mar
35
Excellent
Air quality in the last 12 months (Keshan)
|
2025/02
|
71
|
134
|
91
|
30
|
43
|
50
|
23
|
18
|
27
|
42
|
72
|
69
|
51
|
31
|
35
|
31
|
23
|
21
|
25
|
27
|
30
|
30
|
33
|
32
|
40
|
25
|
48
|
33
|
|||
|
2025/01
|
123
|
97
|
78
|
135
|
97
|
63
|
62
|
33
|
39
|
72
|
100
|
171
|
168
|
137
|
43
|
41
|
72
|
120
|
154
|
122
|
97
|
72
|
159
|
223
|
220
|
146
|
47
|
48
|
49
|
33
|
48
|
|
2024/12
|
48
|
23
|
26
|
23
|
31
|
21
|
31
|
37
|
100
|
91
|
28
|
50
|
78
|
51
|
36
|
31
|
37
|
44
|
65
|
115
|
50
|
34
|
37
|
45
|
48
|
29
|
36
|
43
|
55
|
82
|
101
|
|
2024/11
|
58
|
65
|
56
|
30
|
46
|
64
|
121
|
129
|
207
|
122
|
231
|
85
|
160
|
275
|
203
|
62
|
21
|
28
|
69
|
109
|
106
|
25
|
51
|
114
|
140
|
67
|
26
|
43
|
26
|
36
|
|
|
2024/10
|
19
|
20
|
20
|
29
|
37
|
27
|
57
|
50
|
43
|
32
|
22
|
21
|
40
|
47
|
11
|
19
|
32
|
29
|
18
|
37
|
38
|
44
|
37
|
65
|
57
|
84
|
65
|
50
|
72
|
85
|
82
|
|
2024/09
|
13
|
17
|
17
|
24
|
12
|
15
|
18
|
17
|
30
|
22
|
13
|
23
|
12
|
17
|
20
|
21
|
19
|
18
|
14
|
16
|
18
|
20
|
24
|
25
|
19
|
23
|
28
|
21
|
34
|
18
|
|
|
2024/08
|
18
|
17
|
17
|
17
|
18
|
20
|
21
|
16
|
25
|
25
|
14
|
12
|
15
|
18
|
20
|
25
|
29
|
24
|
19
|
21
|
21
|
18
|
23
|
22
|
23
|
14
|
16
|
19
|
21
|
13
|
13
|
|
2024/07
|
40
|
44
|
54
|
49
|
48
|
58
|
82
|
86
|
68
|
83
|
88
|
75
|
90
|
73
|
55
|
43
|
20
|
24
|
23
|
23
|
13
|
15
|
16
|
13
|
18
|
16
|
11
|
15
|
15
|
17
|
20
|
|
2024/06
|
25
|
27
|
27
|
17
|
26
|
34
|
27
|
15
|
15
|
20
|
21
|
18
|
23
|
19
|
15
|
18
|
15
|
17
|
28
|
22
|
13
|
16
|
14
|
20
|
29
|
32
|
32
|
43
|
35
|
45
|
|
|
2024/05
|
43
|
40
|
46
|
65
|
48
|
36
|
32
|
55
|
22
|
26
|
21
|
35
|
25
|
16
|
14
|
20
|
37
|
21
|
25
|
26
|
37
|
36
|
14
|
20
|
24
|
23
|
26
|
33
|
17
|
16
|
25
|
|
2024/04
|
23
|
56
|
42
|
24
|
47
|
37
|
29
|
31
|
50
|
104
|
114
|
92
|
64
|
74
|
87
|
34
|
33
|
33
|
20
|
81
|
188
|
156
|
22
|
35
|
33
|
14
|
19
|
16
|
31
|
39
|
|
|
2024/03
|
30
|
29
|
36
|
33
|
33
|
33
|
42
|
24
|
32
|
50
|
40
|
43
|
43
|
44
|
27
|
35
|
21
|
24
|
31
|
28
|
30
|
36
|
57
|
19
|
30
|
58
|
67
|
171
|
25
|
22
|
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