Air Quality
Excellent
No health implications.
32
PM2.5
41
PM10
71
O3
0.7
CO
2
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Jul
55
Good
Thu
17 Jul
76
Good
Fri
18 Jul
126
Light
Sat
19 Jul
117
Light
Sun
20 Jul
56
Good
Mon
21 Jul
36
Excellent
Tue
22 Jul
19
Excellent
Air quality in the last 12 months (Huairou)
|
2025/06
|
55
|
17
|
9
|
17
|
42
|
24
|
20
|
44
|
39
|
22
|
42
|
62
|
57
|
49
|
12
|
12
|
30
|
57
|
33
|
19
|
11
|
22
|
39
|
50
|
65
|
52
|
69
|
45
|
51
|
47
|
|
|
2025/05
|
26
|
26
|
15
|
29
|
51
|
18
|
71
|
94
|
21
|
37
|
52
|
63
|
68
|
25
|
45
|
68
|
36
|
32
|
41
|
79
|
74
|
62
|
42
|
27
|
45
|
47
|
31
|
46
|
65
|
68
|
64
|
|
2025/04
|
19
|
15
|
48
|
54
|
15
|
53
|
50
|
32
|
47
|
62
|
103
|
88
|
75
|
50
|
51
|
92
|
57
|
15
|
28
|
63
|
61
|
22
|
38
|
22
|
39
|
75
|
19
|
43
|
57
|
29
|
|
|
2025/03
|
177
|
63
|
36
|
49
|
64
|
15
|
67
|
105
|
140
|
137
|
195
|
50
|
71
|
70
|
47
|
16
|
16
|
20
|
19
|
16
|
22
|
42
|
115
|
70
|
35
|
75
|
41
|
23
|
15
|
36
|
47
|
|
2025/02
|
88
|
55
|
7
|
11
|
17
|
28
|
16
|
10
|
12
|
47
|
104
|
18
|
43
|
47
|
68
|
26
|
14
|
18
|
14
|
13
|
12
|
10
|
10
|
27
|
31
|
36
|
91
|
122
|
|||
|
2025/01
|
35
|
17
|
26
|
40
|
30
|
8
|
8
|
8
|
19
|
16
|
19
|
21
|
33
|
9
|
25
|
43
|
49
|
58
|
30
|
38
|
29
|
38
|
76
|
103
|
145
|
105
|
12
|
15
|
45
|
32
|
69
|
|
2024/12
|
37
|
10
|
27
|
15
|
15
|
13
|
8
|
14
|
24
|
23
|
23
|
50
|
14
|
15
|
23
|
23
|
11
|
12
|
33
|
32
|
10
|
16
|
18
|
48
|
50
|
17
|
11
|
34
|
49
|
51
|
31
|
|
2024/11
|
126
|
130
|
72
|
7
|
23
|
31
|
79
|
150
|
160
|
107
|
52
|
62
|
72
|
52
|
66
|
38
|
17
|
30
|
50
|
57
|
21
|
26
|
47
|
81
|
48
|
6
|
8
|
9
|
15
|
27
|
|
|
2024/10
|
6
|
11
|
21
|
60
|
76
|
69
|
16
|
12
|
63
|
9
|
36
|
75
|
97
|
110
|
36
|
38
|
50
|
24
|
9
|
25
|
53
|
17
|
29
|
54
|
134
|
176
|
29
|
22
|
82
|
49
|
90
|
|
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
|
|
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