Air Quality
Excellent
No health implications.
16
PM2.5
41
PM10
12
O3
0.8
CO
4
SO2
62
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Dec
57
Good
Thu
19 Dec
79
Good
Fri
20 Dec
50
Excellent
Sat
21 Dec
32
Excellent
Sun
22 Dec
40
Excellent
Mon
23 Dec
94
Good
Tue
24 Dec
37
Excellent
Haidian Air quality rank
Air quality in the last 12 months (Haidian)
|
2024/11
|
151
|
143
|
67
|
14
|
44
|
60
|
93
|
152
|
175
|
132
|
78
|
101
|
88
|
54
|
77
|
46
|
30
|
44
|
58
|
70
|
23
|
36
|
52
|
83
|
41
|
9
|
15
|
17
|
33
|
55
|
|
|
2024/10
|
8
|
18
|
35
|
66
|
85
|
89
|
28
|
33
|
86
|
20
|
51
|
87
|
129
|
127
|
42
|
47
|
60
|
44
|
11
|
38
|
54
|
24
|
44
|
62
|
160
|
219
|
26
|
49
|
99
|
118
|
160
|
|
2024/09
|
23
|
14
|
33
|
67
|
18
|
20
|
26
|
28
|
59
|
14
|
25
|
30
|
38
|
21
|
35
|
44
|
28
|
43
|
53
|
28
|
8
|
16
|
38
|
59
|
45
|
40
|
49
|
57
|
72
|
9
|
|
|
2024/08
|
18
|
33
|
31
|
29
|
14
|
38
|
48
|
37
|
45
|
23
|
22
|
8
|
15
|
29
|
47
|
42
|
37
|
23
|
23
|
13
|
15
|
24
|
39
|
27
|
34
|
14
|
18
|
31
|
41
|
51
|
56
|
|
2024/07
|
25
|
39
|
39
|
63
|
80
|
32
|
36
|
33
|
68
|
75
|
80
|
43
|
59
|
86
|
60
|
46
|
17
|
28
|
47
|
33
|
49
|
31
|
55
|
45
|
16
|
19
|
26
|
26
|
38
|
12
|
20
|
|
2024/06
|
30
|
46
|
54
|
60
|
62
|
67
|
55
|
49
|
39
|
46
|
36
|
50
|
56
|
33
|
23
|
56
|
71
|
68
|
68
|
62
|
52
|
93
|
169
|
22
|
34
|
66
|
64
|
60
|
63
|
46
|
|
|
2024/05
|
49
|
65
|
64
|
77
|
88
|
67
|
58
|
70
|
73
|
94
|
105
|
42
|
54
|
61
|
27
|
61
|
60
|
81
|
63
|
31
|
47
|
73
|
75
|
36
|
28
|
18
|
38
|
55
|
69
|
44
|
17
|
|
2024/04
|
79
|
87
|
79
|
71
|
76
|
95
|
44
|
88
|
62
|
65
|
113
|
159
|
81
|
62
|
92
|
63
|
97
|
92
|
67
|
53
|
87
|
96
|
20
|
55
|
99
|
122
|
95
|
25
|
26
|
24
|
|
|
2024/03
|
40
|
87
|
56
|
57
|
72
|
57
|
57
|
25
|
65
|
113
|
74
|
48
|
68
|
67
|
110
|
117
|
43
|
112
|
87
|
59
|
94
|
70
|
88
|
83
|
82
|
112
|
151
|
213
|
103
|
50
|
87
|
|
2024/02
|
41
|
59
|
79
|
112
|
93
|
52
|
30
|
33
|
56
|
41
|
82
|
101
|
137
|
62
|
29
|
69
|
93
|
90
|
39
|
25
|
23
|
22
|
37
|
65
|
55
|
79
|
78
|
72
|
28
|
||
|
2024/01
|
102
|
99
|
40
|
67
|
49
|
19
|
30
|
65
|
50
|
55
|
88
|
118
|
77
|
26
|
46
|
79
|
121
|
98
|
68
|
59
|
21
|
21
|
21
|
31
|
35
|
42
|
42
|
59
|
94
|
124
|
66
|
|
2023/12
|
44
|
55
|
66
|
82
|
97
|
125
|
198
|
170
|
82
|
53
|
46
|
84
|
106
|
74
|
20
|
21
|
36
|
70
|
37
|
21
|
25
|
46
|
51
|
58
|
85
|
59
|
50
|
71
|
137
|
180
|
28
|
|
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