Air Quality
Excellent
No health implications.
9
PM2.5
20
PM10
92
O3
0.4
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Mar
49
Excellent
Tue
18 Mar
56
Good
Wed
19 Mar
57
Good
Thu
20 Mar
53
Good
Fri
21 Mar
57
Good
Sat
22 Mar
79
Good
Sun
23 Mar
45
Excellent
Air quality in the last 12 months (Miyun)
|
2025/02
|
85
|
52
|
11
|
14
|
19
|
31
|
16
|
12
|
12
|
51
|
100
|
28
|
55
|
50
|
69
|
28
|
18
|
19
|
16
|
12
|
11
|
16
|
17
|
32
|
43
|
41
|
100
|
120
|
|||
|
2025/01
|
37
|
21
|
31
|
48
|
41
|
18
|
16
|
11
|
12
|
18
|
23
|
27
|
33
|
21
|
28
|
49
|
54
|
66
|
35
|
49
|
26
|
42
|
81
|
105
|
138
|
105
|
14
|
31
|
98
|
35
|
74
|
|
2024/12
|
47
|
14
|
36
|
24
|
26
|
17
|
11
|
25
|
29
|
30
|
27
|
56
|
20
|
28
|
33
|
31
|
10
|
17
|
43
|
45
|
12
|
18
|
24
|
59
|
59
|
20
|
17
|
37
|
66
|
49
|
41
|
|
2024/11
|
106
|
110
|
74
|
13
|
32
|
42
|
87
|
143
|
132
|
98
|
63
|
56
|
64
|
49
|
64
|
34
|
21
|
32
|
57
|
60
|
28
|
31
|
48
|
83
|
49
|
7
|
11
|
18
|
27
|
35
|
|
|
2024/10
|
10
|
16
|
23
|
57
|
73
|
60
|
12
|
18
|
65
|
18
|
44
|
76
|
105
|
143
|
31
|
36
|
48
|
23
|
11
|
27
|
52
|
18
|
39
|
65
|
125
|
161
|
29
|
34
|
88
|
50
|
87
|
|
2024/09
|
16
|
14
|
27
|
50
|
15
|
13
|
12
|
21
|
44
|
10
|
17
|
22
|
24
|
22
|
19
|
22
|
15
|
28
|
44
|
17
|
7
|
13
|
30
|
50
|
29
|
23
|
40
|
38
|
60
|
8
|
|
|
2024/08
|
11
|
30
|
31
|
26
|
15
|
36
|
50
|
27
|
40
|
25
|
23
|
7
|
13
|
22
|
37
|
35
|
36
|
19
|
16
|
12
|
15
|
18
|
26
|
26
|
26
|
13
|
20
|
27
|
35
|
41
|
40
|
|
2024/07
|
20
|
32
|
25
|
45
|
72
|
46
|
29
|
39
|
60
|
68
|
75
|
31
|
48
|
60
|
62
|
45
|
17
|
21
|
36
|
25
|
46
|
23
|
61
|
51
|
19
|
14
|
30
|
25
|
43
|
13
|
22
|
|
2024/06
|
24
|
30
|
49
|
58
|
59
|
57
|
43
|
30
|
36
|
52
|
38
|
46
|
51
|
39
|
21
|
42
|
57
|
51
|
86
|
66
|
45
|
115
|
160
|
17
|
24
|
50
|
63
|
60
|
58
|
38
|
|
|
2024/05
|
33
|
55
|
54
|
62
|
82
|
49
|
40
|
58
|
67
|
107
|
158
|
37
|
38
|
48
|
27
|
49
|
59
|
72
|
79
|
23
|
42
|
76
|
73
|
32
|
24
|
19
|
36
|
44
|
62
|
33
|
11
|
|
2024/04
|
85
|
84
|
66
|
71
|
65
|
71
|
44
|
77
|
61
|
58
|
105
|
131
|
78
|
58
|
68
|
47
|
70
|
71
|
65
|
32
|
64
|
70
|
17
|
43
|
85
|
95
|
74
|
23
|
13
|
21
|
|
|
2024/03
|
29
|
50
|
31
|
56
|
83
|
31
|
31
|
15
|
45
|
105
|
67
|
22
|
55
|
49
|
109
|
113
|
32
|
116
|
70
|
40
|
72
|
49
|
61
|
99
|
81
|
104
|
129
|
156
|
87
|
41
|
76
|
|
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