Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
25 May
Mon
26 May
Tue
27 May
Wed
28 May
Thu
29 May
Fri
30 May
Sat
31 May
Real-time AQI (Monitoring Station in Zhoukou)
周口师范
7051 *
PM2.5
70
PM10
95
O3
0.6
CO
4
SO2
21
NO2
七一路
6446 *
PM2.5
74
PM10
89
O3
0.9
CO
4
SO2
28
NO2
健康路46号
7555 *
PM2.5
93
PM10
53
O3
0.9
CO
2
SO2
33
NO2
太昊路
5941
PM2.5
68 *
PM10
65
O3
0.6
CO
4
SO2
53
NO2
Air quality in the last 12 months (Zhoukou)
|
2025/04
|
67
|
45
|
56
|
77
|
77
|
82
|
79
|
79
|
111
|
107
|
75
|
255
|
146
|
67
|
58
|
79
|
89
|
83
|
49
|
63
|
54
|
71
|
88
|
114
|
79
|
70
|
78
|
53
|
51
|
85
|
|
|
2025/03
|
97
|
73
|
39
|
38
|
66
|
84
|
79
|
85
|
109
|
113
|
94
|
133
|
141
|
44
|
63
|
49
|
48
|
61
|
60
|
48
|
42
|
59
|
70
|
169
|
57
|
77
|
114
|
171
|
68
|
67
|
77
|
|
2025/02
|
101
|
127
|
151
|
46
|
58
|
59
|
93
|
60
|
61
|
66
|
114
|
129
|
117
|
89
|
79
|
80
|
76
|
79
|
109
|
72
|
78
|
110
|
110
|
61
|
78
|
105
|
117
|
94
|
|||
|
2025/01
|
146
|
141
|
141
|
225
|
117
|
70
|
61
|
60
|
49
|
71
|
79
|
62
|
95
|
143
|
54
|
61
|
81
|
114
|
124
|
186
|
188
|
236
|
118
|
127
|
148
|
82
|
36
|
109
|
283
|
189
|
113
|
|
2024/12
|
65
|
84
|
72
|
106
|
107
|
86
|
110
|
49
|
68
|
94
|
115
|
126
|
88
|
67
|
59
|
71
|
101
|
65
|
55
|
101
|
91
|
60
|
83
|
120
|
141
|
207
|
125
|
53
|
79
|
103
|
93
|
|
2024/11
|
115
|
110
|
117
|
78
|
56
|
86
|
67
|
63
|
68
|
77
|
110
|
126
|
96
|
105
|
114
|
83
|
38
|
42
|
33
|
62
|
77
|
105
|
70
|
53
|
52
|
50
|
65
|
58
|
48
|
62
|
|
|
2024/10
|
38
|
56
|
64
|
72
|
54
|
42
|
93
|
162
|
77
|
163
|
89
|
124
|
113
|
105
|
79
|
112
|
58
|
26
|
36
|
43
|
59
|
73
|
92
|
64
|
67
|
114
|
151
|
128
|
149
|
106
|
73
|
|
2024/09
|
47
|
39
|
40
|
50
|
57
|
37
|
57
|
61
|
56
|
56
|
32
|
30
|
25
|
55
|
45
|
50
|
52
|
27
|
38
|
53
|
24
|
35
|
54
|
58
|
65
|
61
|
54
|
58
|
60
|
29
|
|
|
2024/08
|
19
|
18
|
26
|
26
|
32
|
12
|
18
|
18
|
35
|
94
|
105
|
36
|
48
|
47
|
40
|
34
|
33
|
40
|
23
|
25
|
34
|
41
|
44
|
51
|
50
|
45
|
22
|
32
|
36
|
39
|
42
|
|
2024/07
|
39
|
28
|
35
|
15
|
27
|
17
|
26
|
35
|
29
|
54
|
42
|
31
|
39
|
44
|
30
|
28
|
16
|
13
|
23
|
23
|
27
|
28
|
31
|
37
|
47
|
44
|
17
|
13
|
14
|
21
|
19
|
|
2024/06
|
81
|
101
|
71
|
85
|
70
|
52
|
37
|
62
|
65
|
54
|
51
|
52
|
54
|
54
|
66
|
46
|
49
|
52
|
59
|
40
|
44
|
40
|
55
|
113
|
98
|
52
|
60
|
24
|
19
|
23
|
|
|
2024/05
|
66
|
64
|
56
|
50
|
61
|
62
|
66
|
68
|
58
|
68
|
177
|
136
|
109
|
82
|
119
|
67
|
70
|
67
|
66
|
64
|
61
|
56
|
50
|
50
|
74
|
57
|
56
|
60
|
84
|
95
|
103
|
|
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
*: primary pollution