Air Quality
Excellent
No health implications.
7
PM2.5
12
PM10
41
O3
0.4
CO
2
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Oct
39
Excellent
Mon
19 Oct
53
Good
Tue
20 Oct
41
Excellent
Wed
21 Oct
45
Excellent
Thu
22 Oct
77
Good
Fri
23 Oct
121
Light
Sat
24 Oct
15
Excellent
Air quality in the last 12 months (Huairou)
|
2026/08
|
27
|
33
|
30
|
23
|
42
|
45
|
33
|
24
|
40
|
62
|
38
|
17
|
19
|
21
|
26
|
18
|
18
|
30
|
36
|
49
|
63
|
31
|
32
|
31
|
34
|
19
|
20
|
19
|
26
|
19
|
18
|
|
2026/07
|
35
|
72
|
64
|
51
|
32
|
38
|
31
|
32
|
52
|
30
|
27
|
18
|
35
|
26
|
33
|
34
|
40
|
31
|
37
|
40
|
39
|
35
|
31
|
31
|
51
|
53
|
56
|
43
|
40
|
31
|
37
|
|
2026/06
|
45
|
83
|
38
|
25
|
24
|
25
|
15
|
24
|
20
|
20
|
24
|
50
|
50
|
32
|
70
|
52
|
33
|
46
|
63
|
23
|
29
|
51
|
40
|
51
|
33
|
37
|
59
|
74
|
54
|
39
|
|
|
2026/05
|
58
|
41
|
21
|
33
|
60
|
50
|
27
|
36
|
58
|
51
|
53
|
80
|
88
|
96
|
68
|
58
|
29
|
26
|
38
|
45
|
30
|
35
|
38
|
64
|
39
|
30
|
42
|
30
|
27
|
52
|
68
|
|
2026/04
|
41
|
71
|
96
|
53
|
40
|
26
|
31
|
68
|
69
|
37
|
45
|
68
|
78
|
72
|
97
|
95
|
59
|
93
|
68
|
86
|
61
|
68
|
55
|
63
|
65
|
49
|
33
|
33
|
25
|
38
|
|
|
2026/03
|
101
|
116
|
99
|
47
|
69
|
33
|
67
|
67
|
23
|
77
|
58
|
96
|
85
|
41
|
65
|
66
|
136
|
32
|
36
|
49
|
67
|
79
|
121
|
134
|
149
|
135
|
31
|
72
|
64
|
29
|
48
|
|
2026/02
|
23
|
13
|
42
|
69
|
25
|
11
|
10
|
19
|
72
|
78
|
19
|
56
|
61
|
59
|
10
|
17
|
52
|
34
|
51
|
66
|
150
|
30
|
30
|
64
|
106
|
70
|
37
|
80
|
|||
|
2026/01
|
17
|
18
|
30
|
33
|
22
|
24
|
16
|
38
|
62
|
16
|
24
|
40
|
24
|
62
|
86
|
60
|
24
|
31
|
11
|
14
|
15
|
21
|
26
|
20
|
31
|
50
|
26
|
55
|
66
|
104
|
68
|
|
2025/12
|
24
|
20
|
21
|
23
|
36
|
76
|
39
|
25
|
44
|
64
|
36
|
41
|
36
|
34
|
58
|
38
|
47
|
162
|
163
|
19
|
24
|
61
|
58
|
17
|
18
|
37
|
53
|
85
|
20
|
18
|
18
|
|
2025/11
|
9
|
11
|
47
|
60
|
152
|
170
|
75
|
47
|
15
|
23
|
59
|
83
|
14
|
40
|
58
|
23
|
15
|
19
|
30
|
23
|
32
|
44
|
72
|
41
|
26
|
51
|
23
|
57
|
84
|
76
|
|
|
2025/10
|
28
|
39
|
32
|
27
|
36
|
16
|
26
|
16
|
8
|
14
|
15
|
24
|
36
|
50
|
48
|
74
|
27
|
12
|
12
|
12
|
13
|
38
|
56
|
87
|
96
|
17
|
22
|
87
|
200
|
139
|
60
|
|
2025/09
|
14
|
40
|
46
|
52
|
54
|
15
|
15
|
12
|
42
|
28
|
50
|
58
|
55
|
17
|
10
|
13
|
8
|
10
|
22
|
24
|
34
|
38
|
24
|
42
|
24
|
32
|
38
|
30
|
16
|
22
|
|
|
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