Air Quality
Excellent
No health implications.
9
PM2.5
15
PM10
105
O3
0.2
CO
3
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 Jul
71
Good
Thu
3 Jul
74
Good
Fri
4 Jul
89
Good
Sat
5 Jul
95
Good
Sun
6 Jul
92
Good
Mon
7 Jul
23
Excellent
Tue
8 Jul
21
Excellent
Air quality in the last 12 months (Yanqi)
|
2025/05
|
86
|
87
|
36
|
267
|
416
|
63
|
100
|
170
|
64
|
65
|
64
|
52
|
40
|
80
|
80
|
58
|
72
|
148
|
114
|
40
|
88
|
103
|
94
|
68
|
57
|
77
|
88
|
75
|
149
|
101
|
79
|
|
2025/04
|
463
|
439
|
196
|
144
|
346
|
185
|
110
|
61
|
60
|
143
|
63
|
43
|
126
|
239
|
117
|
94
|
293
|
414
|
182
|
99
|
69
|
269
|
195
|
159
|
93
|
45
|
46
|
81
|
122
|
102
|
|
|
2025/03
|
104
|
99
|
75
|
71
|
75
|
200
|
245
|
101
|
116
|
138
|
276
|
145
|
82
|
156
|
80
|
116
|
130
|
182
|
152
|
99
|
144
|
272
|
316
|
154
|
213
|
445
|
153
|
93
|
215
|
391
|
442
|
|
2025/02
|
70
|
78
|
74
|
62
|
57
|
213
|
152
|
186
|
159
|
113
|
238
|
309
|
171
|
170
|
161
|
144
|
126
|
105
|
125
|
109
|
89
|
68
|
76
|
224
|
232
|
187
|
169
|
119
|
|||
|
2025/01
|
83
|
70
|
67
|
74
|
69
|
65
|
57
|
58
|
57
|
44
|
34
|
31
|
52
|
49
|
45
|
62
|
71
|
64
|
65
|
70
|
75
|
73
|
65
|
52
|
136
|
410
|
274
|
280
|
167
|
153
|
116
|
|
2024/12
|
76
|
77
|
62
|
65
|
54
|
54
|
61
|
58
|
54
|
24
|
31
|
34
|
28
|
33
|
39
|
44
|
45
|
50
|
49
|
52
|
51
|
56
|
67
|
69
|
66
|
55
|
57
|
95
|
89
|
73
|
69
|
|
2024/11
|
70
|
76
|
78
|
77
|
105
|
93
|
83
|
59
|
48
|
64
|
70
|
70
|
82
|
54
|
36
|
52
|
66
|
66
|
77
|
70
|
60
|
69
|
62
|
50
|
41
|
41
|
50
|
89
|
78
|
78
|
|
|
2024/10
|
86
|
76
|
74
|
45
|
42
|
60
|
74
|
78
|
71
|
81
|
100
|
96
|
74
|
63
|
75
|
79
|
58
|
49
|
37
|
45
|
42
|
69
|
99
|
100
|
72
|
83
|
79
|
82
|
50
|
34
|
47
|
|
2024/09
|
89
|
56
|
17
|
25
|
118
|
101
|
96
|
51
|
99
|
51
|
52
|
81
|
74
|
72
|
45
|
70
|
85
|
77
|
61
|
66
|
75
|
90
|
49
|
31
|
34
|
68
|
36
|
47
|
46
|
39
|
|
|
2024/08
|
43
|
59
|
56
|
44
|
42
|
63
|
18
|
19
|
48
|
58
|
32
|
27
|
35
|
30
|
57
|
47
|
61
|
67
|
54
|
54
|
76
|
54
|
48
|
58
|
83
|
50
|
59
|
47
|
52
|
45
|
33
|
|
2024/07
|
48
|
37
|
22
|
37
|
41
|
56
|
30
|
45
|
44
|
29
|
49
|
50
|
29
|
29
|
30
|
54
|
48
|
45
|
66
|
73
|
80
|
58
|
67
|
64
|
66
|
47
|
38
|
43
|
49
|
45
|
60
|
|
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
|
|
|
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