Air Quality
Excellent
No health implications.
12
PM2.5
28
PM10
156
O3
0.3
CO
3
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Jun
136
Light
Mon
23 Jun
147
Light
Tue
24 Jun
178
Moderate
Wed
25 Jun
183
Moderate
Thu
26 Jun
100
Good
Fri
27 Jun
87
Good
Sat
28 Jun
16
Excellent
Haidian Air quality rank
Air quality in the last 12 months (Haidian)
|
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
|
|
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
|
|
|
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