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
15 Aug
Sun
16 Aug
Mon
17 Aug
Tue
18 Aug
Wed
19 Aug
Thu
20 Aug
Fri
21 Aug
Real-time AQI (Monitoring Station in Kaifeng)
肿瘤医院
4028
PM2.5
39
PM10
50
O3
0.5
CO
3
SO2
13
NO2
世纪星幼儿园
4833
PM2.5
42
PM10
42
O3
0.4
CO
3
SO2
12
NO2
龙亭公园
5527
PM2.5
56 *
PM10
43
O3
0.6
CO
5
SO2
10
NO2
技师学院
4522
PM2.5
45
PM10
46
O3
0.6
CO
5
SO2
21
NO2
Air quality in the last 12 months (Kaifeng)
|
2026/07
|
62
|
64
|
48
|
42
|
37
|
37
|
34
|
38
|
37
|
35
|
38
|
37
|
40
|
48
|
36
|
41
|
34
|
37
|
47
|
49
|
48
|
42
|
39
|
38
|
39
|
40
|
29
|
24
|
22
|
24
|
27
|
|
2026/06
|
84
|
96
|
101
|
68
|
91
|
59
|
31
|
52
|
59
|
60
|
78
|
64
|
48
|
57
|
65
|
43
|
54
|
55
|
33
|
41
|
45
|
38
|
42
|
40
|
63
|
52
|
71
|
74
|
68
|
55
|
|
|
2026/05
|
58
|
42
|
40
|
57
|
59
|
59
|
62
|
61
|
59
|
56
|
65
|
73
|
70
|
81
|
53
|
50
|
43
|
30
|
33
|
30
|
34
|
43
|
47
|
55
|
24
|
27
|
40
|
58
|
45
|
72
|
70
|
|
2026/04
|
54
|
56
|
57
|
63
|
92
|
83
|
81
|
49
|
52
|
71
|
62
|
65
|
44
|
42
|
52
|
74
|
82
|
73
|
66
|
77
|
50
|
35
|
39
|
43
|
43
|
56
|
95
|
65
|
45
|
62
|
|
|
2026/03
|
62
|
87
|
115
|
142
|
97
|
70
|
68
|
106
|
129
|
151
|
171
|
185
|
149
|
132
|
40
|
83
|
134
|
77
|
67
|
95
|
82
|
90
|
117
|
115
|
96
|
77
|
79
|
84
|
51
|
65
|
71
|
|
2026/02
|
107
|
149
|
126
|
117
|
132
|
68
|
68
|
92
|
74
|
87
|
91
|
102
|
117
|
124
|
91
|
51
|
110
|
74
|
74
|
67
|
85
|
300
|
193
|
66
|
44
|
51
|
94
|
74
|
|||
|
2026/01
|
58
|
97
|
136
|
133
|
228
|
49
|
48
|
81
|
66
|
79
|
57
|
73
|
91
|
133
|
87
|
116
|
72
|
70
|
63
|
50
|
89
|
108
|
168
|
169
|
189
|
180
|
206
|
104
|
182
|
119
|
151
|
|
2025/12
|
164
|
76
|
59
|
81
|
114
|
117
|
85
|
104
|
126
|
151
|
178
|
46
|
63
|
90
|
75
|
167
|
170
|
228
|
208
|
166
|
90
|
56
|
88
|
102
|
87
|
82
|
105
|
164
|
173
|
214
|
54
|
|
2025/11
|
100
|
81
|
75
|
81
|
92
|
107
|
120
|
62
|
70
|
97
|
85
|
80
|
114
|
138
|
146
|
120
|
47
|
47
|
45
|
67
|
65
|
72
|
72
|
127
|
86
|
129
|
233
|
133
|
90
|
102
|
|
|
2025/10
|
34
|
19
|
34
|
33
|
18
|
11
|
31
|
33
|
9
|
10
|
19
|
17
|
29
|
40
|
38
|
53
|
16
|
29
|
43
|
38
|
48
|
64
|
100
|
103
|
72
|
102
|
97
|
90
|
90
|
121
|
210
|
|
2025/09
|
41
|
40
|
41
|
24
|
26
|
51
|
60
|
29
|
33
|
43
|
30
|
27
|
50
|
47
|
42
|
27
|
27
|
20
|
18
|
35
|
45
|
19
|
24
|
35
|
44
|
34
|
13
|
32
|
37
|
55
|
|
|
2025/08
|
42
|
32
|
43
|
42
|
48
|
31
|
31
|
28
|
22
|
31
|
36
|
25
|
34
|
33
|
36
|
31
|
35
|
40
|
43
|
28
|
29
|
37
|
36
|
26
|
36
|
43
|
39
|
35
|
37
|
35
|
25
|
|
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