Air Quality
Excellent
No health implications.
10
PM2.5
36
PM10
101
O3
0.2
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
81
Good
Sun
28 Jul
90
Good
Mon
29 Jul
89
Good
Tue
30 Jul
96
Good
Wed
31 Jul
84
Good
Thu
1 Aug
80
Good
Fri
2 Aug
80
Good
Air quality in the last 12 months (Yanqi)
|
2024/06
|
28
|
57
|
72
|
35
|
34
|
60
|
66
|
56
|
37
|
61
|
52
|
39
|
34
|
33
|
45
|
30
|
35
|
83
|
128
|
53
|
60
|
47
|
45
|
49
|
43
|
52
|
55
|
51
|
51
|
52
|
|
|
2024/05
|
93
|
125
|
62
|
75
|
87
|
79
|
74
|
81
|
66
|
70
|
63
|
72
|
72
|
65
|
156
|
309
|
162
|
153
|
115
|
80
|
86
|
75
|
56
|
53
|
47
|
33
|
39
|
114
|
67
|
46
|
30
|
|
2024/04
|
57
|
29
|
55
|
56
|
41
|
54
|
87
|
64
|
115
|
73
|
38
|
79
|
392
|
394
|
250
|
132
|
100
|
53
|
34
|
70
|
85
|
56
|
69
|
56
|
60
|
51
|
89
|
103
|
57
|
54
|
|
|
2024/03
|
242
|
140
|
139
|
115
|
247
|
169
|
163
|
179
|
148
|
163
|
123
|
134
|
122
|
110
|
62
|
42
|
149
|
291
|
229
|
272
|
175
|
105
|
89
|
47
|
71
|
61
|
78
|
123
|
103
|
68
|
70
|
|
2024/02
|
77
|
68
|
65
|
63
|
54
|
56
|
99
|
134
|
86
|
76
|
81
|
66
|
66
|
108
|
161
|
247
|
440
|
479
|
465
|
325
|
188
|
182
|
211
|
223
|
208
|
181
|
156
|
100
|
153
|
||
|
2024/01
|
102
|
101
|
100
|
76
|
80
|
93
|
99
|
103
|
99
|
87
|
83
|
88
|
77
|
70
|
75
|
74
|
73
|
86
|
84
|
63
|
48
|
30
|
41
|
50
|
72
|
70
|
79
|
81
|
83
|
82
|
80
|
|
2023/12
|
78
|
70
|
73
|
79
|
87
|
99
|
73
|
62
|
42
|
48
|
47
|
62
|
96
|
96
|
112
|
92
|
96
|
97
|
111
|
94
|
82
|
103
|
107
|
202
|
240
|
205
|
163
|
186
|
156
|
127
|
98
|
|
2023/11
|
62
|
90
|
61
|
83
|
235
|
129
|
162
|
202
|
166
|
99
|
45
|
89
|
100
|
75
|
100
|
108
|
97
|
107
|
93
|
100
|
87
|
86
|
53
|
68
|
74
|
92
|
89
|
86
|
67
|
65
|
|
|
2023/10
|
61
|
59
|
61
|
69
|
61
|
53
|
58
|
64
|
60
|
47
|
65
|
89
|
81
|
81
|
76
|
44
|
56
|
80
|
115
|
117
|
101
|
120
|
110
|
78
|
78
|
87
|
88
|
77
|
75
|
71
|
77
|
|
2023/09
|
99
|
73
|
55
|
71
|
61
|
43
|
64
|
87
|
69
|
46
|
68
|
50
|
43
|
35
|
33
|
33
|
42
|
31
|
46
|
94
|
37
|
30
|
27
|
25
|
28
|
143
|
90
|
64
|
50
|
43
|
|
|
2023/08
|
70
|
43
|
57
|
44
|
52
|
70
|
50
|
65
|
48
|
43
|
62
|
64
|
48
|
38
|
37
|
36
|
38
|
45
|
59
|
60
|
63
|
58
|
43
|
35
|
43
|
52
|
48
|
49
|
78
|
83
|
83
|
|
2023/07
|
35
|
67
|
103
|
67
|
43
|
46
|
58
|
47
|
56
|
48
|
33
|
50
|
70
|
78
|
57
|
49
|
55
|
56
|
55
|
58
|
46
|
44
|
43
|
52
|
41
|
71
|
74
|
63
|
56
|
60
|
79
|
|
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