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
14 May
Fri
15 May
Sat
16 May
Sun
17 May
Mon
18 May
Tue
19 May
Wed
20 May
Real-time AQI (Monitoring Station in Zhoukou)
周口师范
5810
PM2.5
60 *
PM10
131
O3
0.5
CO
3
SO2
6
NO2
羲皇大道
7932
PM2.5
90 *
PM10
147
O3
0.6
CO
2
SO2
8
NO2
健康路46号
7042
PM2.5
77 *
PM10
127
O3
0.5
CO
1
SO2
7
NO2
Air quality in the last 12 months (Zhoukou)
|
2026/04
|
69
|
55
|
40
|
72
|
89
|
76
|
61
|
38
|
37
|
58
|
61
|
58
|
41
|
36
|
46
|
66
|
70
|
68
|
68
|
81
|
55
|
35
|
39
|
31
|
39
|
49
|
72
|
59
|
44
|
46
|
|
|
2026/03
|
60
|
62
|
65
|
103
|
68
|
92
|
71
|
82
|
127
|
112
|
141
|
205
|
102
|
124
|
55
|
119
|
94
|
84
|
67
|
84
|
81
|
88
|
110
|
116
|
89
|
72
|
70
|
65
|
69
|
76
|
75
|
|
2026/02
|
89
|
113
|
121
|
113
|
158
|
81
|
75
|
90
|
61
|
88
|
93
|
94
|
102
|
96
|
106
|
48
|
89
|
84
|
79
|
64
|
58
|
251
|
207
|
52
|
50
|
50
|
106
|
66
|
|||
|
2026/01
|
55
|
113
|
92
|
101
|
194
|
70
|
47
|
73
|
62
|
83
|
57
|
74
|
92
|
163
|
101
|
116
|
92
|
53
|
61
|
44
|
57
|
82
|
100
|
128
|
176
|
176
|
135
|
83
|
95
|
123
|
118
|
|
2025/12
|
138
|
91
|
59
|
101
|
121
|
110
|
115
|
101
|
88
|
136
|
203
|
52
|
64
|
86
|
62
|
130
|
212
|
224
|
175
|
218
|
135
|
52
|
78
|
86
|
98
|
67
|
79
|
95
|
167
|
167
|
111
|
|
2025/11
|
103
|
86
|
76
|
64
|
84
|
73
|
38
|
62
|
65
|
86
|
58
|
58
|
91
|
143
|
121
|
132
|
41
|
45
|
50
|
59
|
85
|
86
|
81
|
110
|
87
|
94
|
257
|
110
|
79
|
103
|
|
|
2025/10
|
30
|
9
|
29
|
25
|
29
|
14
|
35
|
68
|
24
|
15
|
16
|
22
|
22
|
31
|
33
|
38
|
13
|
34
|
44
|
41
|
51
|
56
|
73
|
93
|
81
|
80
|
98
|
73
|
80
|
81
|
197
|
|
2025/09
|
35
|
44
|
40
|
48
|
50
|
44
|
50
|
17
|
26
|
32
|
16
|
16
|
36
|
28
|
24
|
32
|
23
|
18
|
11
|
23
|
38
|
26
|
14
|
28
|
39
|
30
|
18
|
26
|
31
|
32
|
|
|
2025/08
|
37
|
25
|
37
|
31
|
42
|
31
|
22
|
25
|
25
|
33
|
19
|
23
|
25
|
22
|
29
|
30
|
26
|
35
|
37
|
24
|
25
|
29
|
32
|
35
|
28
|
35
|
34
|
40
|
33
|
39
|
26
|
|
2025/07
|
29
|
28
|
28
|
25
|
27
|
41
|
36
|
44
|
19
|
40
|
59
|
38
|
37
|
37
|
37
|
47
|
40
|
40
|
40
|
42
|
37
|
27
|
20
|
26
|
33
|
30
|
28
|
27
|
25
|
38
|
43
|
|
2025/06
|
51
|
54
|
64
|
60
|
56
|
54
|
62
|
46
|
43
|
33
|
43
|
50
|
54
|
44
|
44
|
69
|
53
|
29
|
16
|
32
|
40
|
23
|
42
|
39
|
45
|
36
|
35
|
25
|
22
|
25
|
|
|
2025/05
|
85
|
130
|
51
|
54
|
96
|
214
|
132
|
85
|
84
|
34
|
57
|
56
|
53
|
58
|
78
|
73
|
159
|
93
|
117
|
69
|
60
|
82
|
75
|
66
|
56
|
53
|
77
|
70
|
72
|
61
|
41
|
|
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