Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
25
PM2.5
52
*
PM10
28
O3
0.5
CO
4
SO2
41
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
13 Jan
86
Good
Wed
14 Jan
80
Good
Thu
15 Jan
144
Light
Fri
16 Jan
50
Excellent
Sat
17 Jan
44
Excellent
Sun
18 Jan
35
Excellent
Mon
19 Jan
45
Excellent
Haidian Air quality rank
Air quality in the last 12 months (Haidian)
|
2025/11
|
30
|
22
|
59
|
78
|
166
|
175
|
84
|
62
|
27
|
43
|
77
|
91
|
30
|
61
|
79
|
24
|
16
|
26
|
56
|
32
|
73
|
67
|
86
|
48
|
34
|
68
|
30
|
68
|
92
|
91
|
|
|
2025/10
|
47
|
49
|
44
|
47
|
44
|
19
|
45
|
23
|
8
|
12
|
17
|
37
|
51
|
45
|
71
|
68
|
25
|
12
|
15
|
21
|
31
|
49
|
71
|
95
|
135
|
25
|
39
|
98
|
182
|
142
|
56
|
|
2025/09
|
21
|
40
|
45
|
51
|
49
|
25
|
32
|
33
|
52
|
44
|
53
|
60
|
50
|
30
|
25
|
22
|
21
|
28
|
33
|
44
|
48
|
28
|
50
|
57
|
41
|
50
|
53
|
43
|
38
|
41
|
|
|
2025/08
|
45
|
51
|
28
|
33
|
28
|
35
|
22
|
36
|
15
|
24
|
42
|
43
|
23
|
32
|
43
|
18
|
34
|
32
|
22
|
22
|
32
|
22
|
19
|
16
|
22
|
24
|
22
|
14
|
37
|
30
|
28
|
|
2025/07
|
36
|
32
|
25
|
29
|
17
|
12
|
36
|
34
|
48
|
29
|
48
|
49
|
18
|
38
|
49
|
42
|
16
|
37
|
61
|
22
|
26
|
39
|
33
|
26
|
24
|
45
|
38
|
27
|
7
|
16
|
36
|
|
2025/06
|
65
|
19
|
14
|
27
|
57
|
36
|
28
|
51
|
47
|
29
|
57
|
74
|
64
|
49
|
14
|
17
|
44
|
64
|
36
|
29
|
22
|
38
|
55
|
58
|
61
|
59
|
62
|
47
|
64
|
51
|
|
|
2025/05
|
27
|
36
|
22
|
51
|
50
|
29
|
71
|
97
|
32
|
43
|
59
|
74
|
82
|
29
|
45
|
64
|
51
|
45
|
56
|
95
|
73
|
63
|
47
|
36
|
59
|
57
|
46
|
56
|
68
|
67
|
83
|
|
2025/04
|
45
|
23
|
65
|
67
|
24
|
69
|
56
|
45
|
53
|
76
|
109
|
87
|
57
|
57
|
57
|
99
|
58
|
24
|
43
|
66
|
79
|
26
|
52
|
32
|
56
|
85
|
23
|
59
|
61
|
44
|
|
|
2025/03
|
218
|
75
|
39
|
50
|
76
|
20
|
78
|
116
|
147
|
146
|
212
|
62
|
98
|
67
|
52
|
20
|
33
|
38
|
45
|
36
|
29
|
51
|
114
|
88
|
49
|
77
|
49
|
27
|
22
|
46
|
67
|
|
2025/02
|
92
|
51
|
10
|
17
|
25
|
60
|
21
|
14
|
20
|
63
|
120
|
26
|
60
|
63
|
83
|
29
|
20
|
34
|
24
|
16
|
20
|
17
|
20
|
50
|
46
|
55
|
108
|
130
|
|||
|
2025/01
|
44
|
23
|
38
|
59
|
49
|
17
|
14
|
14
|
16
|
25
|
37
|
35
|
52
|
22
|
29
|
48
|
67
|
79
|
34
|
56
|
42
|
59
|
79
|
115
|
140
|
100
|
19
|
21
|
88
|
63
|
76
|
|
2024/12
|
55
|
16
|
37
|
35
|
19
|
28
|
15
|
32
|
56
|
44
|
42
|
71
|
29
|
25
|
34
|
36
|
20
|
18
|
44
|
39
|
17
|
33
|
50
|
68
|
59
|
28
|
20
|
39
|
63
|
67
|
48
|
|
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