Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
32
PM2.5
54
*
PM10
73
O3
0.8
CO
4
SO2
15
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
16 May
48
Excellent
Sun
17 May
43
Excellent
Mon
18 May
42
Excellent
Tue
19 May
51
Good
Wed
20 May
51
Good
Thu
21 May
28
Excellent
Fri
22 May
28
Excellent
Air quality in the last 12 months (Haidian)
|
2026/04
|
47
|
81
|
95
|
57
|
38
|
25
|
36
|
81
|
63
|
48
|
51
|
77
|
82
|
81
|
102
|
97
|
62
|
116
|
77
|
89
|
71
|
66
|
62
|
66
|
68
|
51
|
33
|
32
|
27
|
53
|
|
|
2026/03
|
94
|
120
|
107
|
74
|
73
|
35
|
79
|
71
|
32
|
100
|
56
|
95
|
90
|
52
|
64
|
64
|
152
|
30
|
58
|
62
|
75
|
71
|
112
|
146
|
177
|
169
|
34
|
84
|
71
|
25
|
59
|
|
2026/02
|
44
|
32
|
73
|
83
|
35
|
19
|
20
|
36
|
77
|
80
|
47
|
70
|
86
|
66
|
25
|
27
|
61
|
29
|
62
|
78
|
140
|
36
|
34
|
64
|
105
|
85
|
38
|
68
|
|||
|
2026/01
|
29
|
44
|
55
|
59
|
47
|
38
|
30
|
59
|
76
|
33
|
35
|
57
|
38
|
65
|
107
|
46
|
30
|
40
|
17
|
21
|
26
|
39
|
49
|
42
|
39
|
70
|
34
|
67
|
74
|
116
|
95
|
|
2025/12
|
23
|
17
|
35
|
31
|
55
|
86
|
48
|
34
|
58
|
75
|
56
|
43
|
30
|
45
|
61
|
52
|
104
|
181
|
129
|
16
|
35
|
66
|
43
|
24
|
25
|
50
|
66
|
90
|
33
|
23
|
22
|
|
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
|
|
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