Air Quality
Excellent
No health implications.
30
PM2.5
39
PM10
38
O3
0.4
CO
1
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Sep
73
Good
Fri
5 Sep
44
Excellent
Sat
6 Sep
48
Excellent
Sun
7 Sep
49
Excellent
Mon
8 Sep
54
Good
Tue
9 Sep
61
Good
Wed
10 Sep
15
Excellent
Air quality in the last 12 months (Yanqing)
|
2025/06
|
58
|
8
|
8
|
17
|
33
|
29
|
18
|
39
|
35
|
29
|
50
|
65
|
51
|
50
|
11
|
11
|
27
|
52
|
30
|
18
|
15
|
24
|
38
|
49
|
52
|
56
|
68
|
47
|
41
|
39
|
|
|
2025/05
|
24
|
20
|
13
|
27
|
53
|
35
|
61
|
85
|
12
|
35
|
37
|
59
|
68
|
21
|
43
|
55
|
41
|
25
|
33
|
84
|
79
|
62
|
49
|
37
|
45
|
34
|
25
|
44
|
64
|
64
|
60
|
|
2025/04
|
24
|
20
|
50
|
45
|
16
|
51
|
53
|
25
|
35
|
47
|
93
|
61
|
58
|
36
|
34
|
79
|
60
|
14
|
28
|
62
|
64
|
25
|
45
|
21
|
40
|
66
|
10
|
35
|
52
|
32
|
|
|
2025/03
|
154
|
79
|
31
|
48
|
41
|
21
|
56
|
91
|
123
|
131
|
141
|
55
|
83
|
67
|
40
|
17
|
18
|
16
|
22
|
20
|
24
|
54
|
178
|
81
|
39
|
80
|
37
|
21
|
15
|
29
|
38
|
|
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
|
|
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