Air Quality
Excellent
No health implications.
4
PM2.5
9
PM10
23
O3
0.2
CO
3
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Oct
63
Good
Thu
24 Oct
94
Good
Fri
25 Oct
117
Lightly
Sat
26 Oct
131
Lightly
Sun
27 Oct
47
Excellent
Mon
28 Oct
48
Excellent
Air quality in the last 12 months (Huairou)
|
2024/09
|
17
|
11
|
30
|
53
|
14
|
11
|
11
|
17
|
46
|
11
|
11
|
12
|
20
|
18
|
14
|
21
|
14
|
21
|
44
|
18
|
6
|
8
|
24
|
47
|
30
|
19
|
38
|
35
|
59
|
7
|
|
|
2024/08
|
9
|
30
|
26
|
30
|
9
|
37
|
59
|
34
|
44
|
21
|
18
|
6
|
12
|
20
|
32
|
36
|
32
|
18
|
14
|
12
|
13
|
16
|
26
|
20
|
23
|
12
|
15
|
21
|
31
|
40
|
45
|
|
2024/07
|
19
|
30
|
27
|
49
|
79
|
38
|
24
|
36
|
58
|
69
|
78
|
26
|
47
|
63
|
63
|
44
|
11
|
17
|
36
|
24
|
48
|
19
|
56
|
51
|
17
|
16
|
29
|
24
|
41
|
10
|
17
|
|
2024/06
|
27
|
32
|
43
|
55
|
59
|
58
|
42
|
29
|
36
|
49
|
32
|
37
|
47
|
38
|
15
|
45
|
56
|
61
|
98
|
72
|
53
|
111
|
153
|
16
|
24
|
58
|
63
|
58
|
58
|
29
|
|
|
2024/05
|
38
|
57
|
56
|
61
|
95
|
53
|
44
|
60
|
69
|
119
|
146
|
34
|
37
|
48
|
28
|
51
|
63
|
70
|
73
|
25
|
44
|
77
|
74
|
36
|
24
|
16
|
32
|
43
|
60
|
34
|
10
|
|
2024/04
|
83
|
82
|
69
|
69
|
62
|
64
|
41
|
77
|
60
|
60
|
103
|
147
|
89
|
61
|
73
|
48
|
76
|
73
|
62
|
35
|
74
|
73
|
16
|
43
|
90
|
89
|
71
|
28
|
13
|
19
|
|
|
2024/03
|
26
|
54
|
36
|
49
|
68
|
31
|
41
|
13
|
47
|
103
|
66
|
22
|
55
|
43
|
106
|
110
|
36
|
120
|
68
|
42
|
72
|
46
|
65
|
95
|
79
|
107
|
133
|
167
|
92
|
33
|
76
|
|
2024/02
|
21
|
32
|
44
|
72
|
71
|
40
|
25
|
23
|
34
|
32
|
46
|
87
|
130
|
64
|
23
|
57
|
82
|
85
|
25
|
21
|
21
|
22
|
23
|
45
|
41
|
52
|
68
|
66
|
42
|
||
|
2024/01
|
65
|
64
|
25
|
58
|
28
|
19
|
19
|
49
|
40
|
28
|
59
|
69
|
61
|
24
|
24
|
63
|
110
|
142
|
67
|
53
|
21
|
19
|
19
|
21
|
20
|
31
|
29
|
29
|
66
|
106
|
50
|
|
2023/12
|
23
|
35
|
31
|
66
|
81
|
98
|
160
|
123
|
72
|
60
|
33
|
65
|
108
|
71
|
20
|
20
|
23
|
46
|
35
|
21
|
20
|
23
|
28
|
33
|
39
|
39
|
36
|
49
|
66
|
94
|
27
|
|
2023/11
|
162
|
98
|
32
|
57
|
41
|
49
|
32
|
43
|
24
|
20
|
18
|
18
|
21
|
33
|
52
|
24
|
19
|
30
|
33
|
76
|
137
|
107
|
20
|
16
|
34
|
54
|
41
|
25
|
22
|
20
|
|
|
2023/10
|
19
|
38
|
56
|
24
|
19
|
24
|
47
|
45
|
20
|
23
|
43
|
78
|
58
|
16
|
19
|
23
|
49
|
34
|
18
|
20
|
27
|
36
|
98
|
145
|
80
|
32
|
52
|
73
|
165
|
143
|
96
|
|
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