Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
41
*
PM2.5
56
PM10
65
O3
0.5
CO
6
SO2
13
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
20 Apr
85
Good
Sun
21 Apr
89
Good
Mon
22 Apr
92
Good
Tue
23 Apr
90
Good
Wed
24 Apr
94
Good
Thu
25 Apr
92
Good
Air quality in the last 12 months (Guoyang)
|
2024/02
|
59
|
47
|
100
|
88
|
83
|
136
|
161
|
184
|
158
|
238
|
163
|
74
|
69
|
79
|
51
|
44
|
46
|
51
|
62
|
24
|
40
|
43
|
42
|
91
|
160
|
92
|
62
|
74
|
70
|
||
|
2024/01
|
182
|
146
|
136
|
73
|
108
|
144
|
54
|
69
|
153
|
164
|
155
|
170
|
206
|
191
|
53
|
47
|
62
|
104
|
82
|
66
|
82
|
30
|
46
|
71
|
87
|
93
|
90
|
110
|
122
|
184
|
152
|
|
2023/12
|
74
|
73
|
101
|
89
|
81
|
122
|
88
|
66
|
100
|
64
|
41
|
63
|
60
|
45
|
55
|
51
|
38
|
38
|
73
|
67
|
55
|
63
|
63
|
108
|
108
|
99
|
217
|
218
|
157
|
177
|
209
|
|
2023/11
|
62
|
67
|
123
|
75
|
38
|
51
|
54
|
66
|
122
|
43
|
51
|
73
|
58
|
78
|
101
|
98
|
79
|
73
|
84
|
137
|
91
|
105
|
119
|
50
|
48
|
80
|
82
|
93
|
74
|
44
|
|
|
2023/10
|
54
|
35
|
31
|
47
|
55
|
52
|
41
|
37
|
48
|
69
|
75
|
94
|
99
|
86
|
99
|
82
|
73
|
74
|
72
|
42
|
63
|
73
|
73
|
84
|
96
|
118
|
104
|
116
|
106
|
80
|
75
|
|
2023/09
|
48
|
62
|
54
|
43
|
44
|
43
|
46
|
51
|
58
|
56
|
57
|
51
|
38
|
41
|
49
|
39
|
44
|
55
|
38
|
30
|
28
|
36
|
31
|
37
|
35
|
55
|
54
|
53
|
43
|
47
|
|
|
2023/08
|
26
|
28
|
39
|
39
|
39
|
27
|
32
|
45
|
48
|
64
|
61
|
50
|
31
|
40
|
45
|
43
|
49
|
47
|
45
|
38
|
35
|
41
|
64
|
58
|
54
|
44
|
25
|
29
|
38
|
51
|
54
|
|
2023/07
|
54
|
36
|
21
|
27
|
36
|
36
|
26
|
34
|
30
|
28
|
31
|
31
|
27
|
43
|
53
|
52
|
40
|
28
|
20
|
22
|
23
|
24
|
30
|
36
|
40
|
33
|
30
|
19
|
15
|
16
|
25
|
|
2023/06
|
63
|
69
|
68
|
40
|
31
|
43
|
49
|
56
|
65
|
88
|
66
|
61
|
64
|
70
|
68
|
72
|
49
|
19
|
20
|
39
|
62
|
72
|
63
|
45
|
23
|
27
|
36
|
30
|
27
|
48
|
|
|
2023/05
|
78
|
61
|
35
|
24
|
25
|
53
|
46
|
47
|
51
|
40
|
51
|
54
|
58
|
63
|
58
|
56
|
44
|
58
|
38
|
56
|
89
|
55
|
55
|
42
|
47
|
57
|
48
|
27
|
16
|
30
|
48
|
|
2023/04
|
60
|
61
|
37
|
23
|
28
|
56
|
60
|
61
|
64
|
67
|
327
|
377
|
129
|
98
|
157
|
81
|
73
|
79
|
62
|
72
|
66
|
51
|
36
|
36
|
45
|
44
|
51
|
50
|
129
|
92
|
|
|
2023/03
|
118
|
89
|
98
|
107
|
99
|
74
|
71
|
88
|
101
|
73
|
152
|
91
|
83
|
74
|
151
|
108
|
33
|
54
|
79
|
78
|
117
|
102
|
467
|
174
|
88
|
106
|
106
|
91
|
76
|
61
|
63
|
|
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