Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Jul
Wed
22 Jul
Thu
23 Jul
Fri
24 Jul
Sat
25 Jul
Sun
26 Jul
Mon
27 Jul
Real-time AQI (Monitoring Station in Zhoukou)
周口师范
4114
PM2.5
23
PM10
131
O3
0.3
CO
3
SO2
11
NO2
七一路
4220
PM2.5
25
PM10
134
O3
0.5
CO
2
SO2
10
NO2
健康路46号
4222
PM2.5
28
PM10
133
O3
0.6
CO
1
SO2
8
NO2
太昊路
4015
PM2.5
30
PM10
125
O3
0.8
CO
2
SO2
9
NO2
Air quality in the last 12 months (Zhoukou)
|
2026/06
|
71
|
86
|
79
|
62
|
68
|
75
|
31
|
40
|
43
|
58
|
75
|
50
|
37
|
50
|
48
|
37
|
46
|
53
|
35
|
32
|
43
|
30
|
35
|
30
|
43
|
51
|
75
|
68
|
72
|
59
|
|
|
2026/05
|
50
|
36
|
38
|
47
|
48
|
51
|
71
|
51
|
51
|
49
|
54
|
61
|
68
|
61
|
46
|
42
|
43
|
24
|
32
|
22
|
31
|
49
|
49
|
39
|
21
|
20
|
34
|
63
|
50
|
58
|
67
|
|
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
|
|
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