Air Quality
Excellent
No health implications.
12
PM2.5
25
PM10
18
O3
0.4
CO
4
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Mar
45
Excellent
Fri
21 Mar
50
Excellent
Sat
22 Mar
61
Good
Sun
23 Mar
74
Good
Mon
24 Mar
63
Good
Tue
25 Mar
34
Excellent
Wed
26 Mar
28
Excellent
Air quality in the last 12 months (Yanqing)
|
2025/02
|
89
|
51
|
7
|
14
|
20
|
44
|
15
|
14
|
22
|
46
|
106
|
20
|
47
|
52
|
67
|
22
|
18
|
28
|
19
|
18
|
18
|
18
|
19
|
35
|
36
|
49
|
78
|
102
|
|||
|
2025/01
|
58
|
15
|
24
|
36
|
32
|
15
|
9
|
15
|
17
|
23
|
47
|
26
|
23
|
15
|
27
|
47
|
65
|
64
|
40
|
54
|
49
|
32
|
81
|
111
|
137
|
92
|
16
|
18
|
89
|
31
|
66
|
|
2024/12
|
37
|
13
|
21
|
19
|
17
|
16
|
16
|
25
|
44
|
54
|
42
|
51
|
21
|
20
|
31
|
33
|
16
|
22
|
38
|
35
|
22
|
31
|
52
|
70
|
56
|
22
|
13
|
41
|
65
|
72
|
58
|
|
2024/11
|
81
|
94
|
55
|
11
|
28
|
38
|
76
|
143
|
155
|
140
|
76
|
49
|
101
|
87
|
54
|
38
|
28
|
39
|
63
|
65
|
25
|
24
|
54
|
94
|
30
|
7
|
11
|
10
|
15
|
32
|
|
|
2024/10
|
7
|
15
|
27
|
55
|
81
|
85
|
10
|
20
|
35
|
12
|
37
|
75
|
95
|
64
|
27
|
49
|
56
|
20
|
7
|
24
|
51
|
13
|
32
|
46
|
129
|
179
|
16
|
34
|
43
|
62
|
168
|
|
2024/09
|
18
|
9
|
26
|
45
|
8
|
13
|
12
|
25
|
38
|
6
|
14
|
16
|
21
|
13
|
19
|
32
|
17
|
32
|
46
|
24
|
6
|
9
|
25
|
46
|
27
|
32
|
47
|
51
|
64
|
7
|
|
|
2024/08
|
12
|
27
|
27
|
19
|
13
|
29
|
47
|
36
|
40
|
30
|
7
|
9
|
10
|
20
|
35
|
35
|
27
|
17
|
13
|
15
|
11
|
17
|
25
|
17
|
18
|
8
|
13
|
21
|
29
|
39
|
53
|
|
2024/07
|
16
|
28
|
30
|
44
|
49
|
23
|
22
|
33
|
59
|
67
|
68
|
30
|
40
|
57
|
67
|
32
|
11
|
18
|
26
|
22
|
53
|
21
|
52
|
44
|
11
|
18
|
32
|
28
|
29
|
22
|
10
|
|
2024/06
|
21
|
26
|
35
|
47
|
55
|
50
|
16
|
28
|
27
|
17
|
25
|
33
|
38
|
16
|
19
|
27
|
48
|
56
|
54
|
68
|
36
|
129
|
140
|
18
|
27
|
56
|
63
|
51
|
58
|
34
|
|
|
2024/05
|
33
|
49
|
56
|
62
|
82
|
31
|
41
|
52
|
68
|
121
|
114
|
32
|
37
|
45
|
28
|
47
|
59
|
71
|
78
|
19
|
55
|
62
|
93
|
40
|
17
|
15
|
31
|
37
|
58
|
27
|
8
|
|
2024/04
|
78
|
94
|
72
|
74
|
62
|
43
|
42
|
79
|
57
|
50
|
72
|
149
|
84
|
68
|
63
|
46
|
69
|
69
|
62
|
43
|
62
|
82
|
17
|
43
|
90
|
88
|
80
|
25
|
13
|
22
|
|
|
2024/03
|
28
|
80
|
46
|
51
|
71
|
24
|
26
|
24
|
48
|
93
|
61
|
25
|
49
|
56
|
96
|
98
|
37
|
120
|
72
|
41
|
77
|
45
|
65
|
81
|
52
|
101
|
143
|
168
|
102
|
30
|
73
|
|
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