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
28 Jan
Wed
29 Jan
Thu
30 Jan
Fri
31 Jan
Sat
1 Feb
Sun
2 Feb
Mon
3 Feb
Real-time AQI (Monitoring Station in Xuchang)
监测站
3618
PM2.5
36
PM10
65
O3
0.3
CO
9
SO2
16
NO2
开发区
5119
PM2.5
52 *
PM10
75
O3
0.4
CO
8
SO2
6
NO2
市一中
3517
PM2.5
35
PM10
74
O3
0.5
CO
5
SO2
10
NO2
许昌学院
4116
PM2.5
41
PM10
74
O3
0.3
CO
7
SO2
10
NO2
芙蓉广场
4514
PM2.5
45
PM10
73
O3
0.3
CO
8
SO2
9
NO2
Air quality in the last 12 months (Xuchang)
|
2024/12
|
75
|
76
|
85
|
155
|
82
|
67
|
83
|
66
|
73
|
98
|
122
|
140
|
80
|
59
|
52
|
61
|
105
|
69
|
59
|
129
|
75
|
70
|
77
|
135
|
155
|
172
|
100
|
51
|
95
|
74
|
103
|
|
2024/11
|
99
|
106
|
121
|
72
|
53
|
106
|
74
|
67
|
91
|
122
|
194
|
197
|
211
|
82
|
116
|
70
|
41
|
51
|
45
|
73
|
74
|
143
|
106
|
57
|
53
|
51
|
65
|
58
|
49
|
65
|
|
|
2024/10
|
56
|
56
|
63
|
74
|
68
|
140
|
158
|
203
|
123
|
107
|
124
|
132
|
143
|
154
|
160
|
166
|
73
|
19
|
32
|
35
|
60
|
53
|
56
|
72
|
87
|
143
|
161
|
165
|
131
|
131
|
201
|
|
2024/09
|
51
|
37
|
36
|
51
|
54
|
34
|
51
|
60
|
52
|
54
|
33
|
40
|
35
|
49
|
38
|
53
|
58
|
37
|
38
|
46
|
16
|
30
|
51
|
76
|
79
|
114
|
113
|
59
|
61
|
17
|
|
|
2024/08
|
21
|
22
|
27
|
27
|
20
|
14
|
21
|
17
|
30
|
120
|
96
|
37
|
38
|
40
|
50
|
38
|
39
|
35
|
37
|
25
|
27
|
41
|
51
|
47
|
47
|
42
|
27
|
35
|
42
|
45
|
46
|
|
2024/07
|
50
|
24
|
38
|
17
|
27
|
20
|
31
|
14
|
36
|
73
|
55
|
34
|
43
|
60
|
26
|
18
|
15
|
24
|
25
|
26
|
28
|
29
|
26
|
34
|
39
|
26
|
30
|
19
|
15
|
22
|
12
|
|
2024/06
|
80
|
92
|
78
|
87
|
62
|
61
|
49
|
59
|
62
|
56
|
55
|
56
|
54
|
62
|
62
|
41
|
39
|
53
|
57
|
50
|
48
|
42
|
62
|
103
|
95
|
62
|
59
|
40
|
30
|
38
|
|
|
2024/05
|
53
|
53
|
51
|
66
|
76
|
66
|
78
|
77
|
60
|
66
|
147
|
129
|
110
|
89
|
102
|
73
|
69
|
62
|
62
|
71
|
65
|
54
|
57
|
66
|
87
|
69
|
53
|
63
|
74
|
73
|
144
|
|
2024/04
|
92
|
121
|
76
|
43
|
68
|
45
|
56
|
65
|
73
|
64
|
59
|
58
|
69
|
42
|
46
|
62
|
76
|
65
|
68
|
86
|
86
|
83
|
104
|
96
|
80
|
63
|
66
|
58
|
65
|
57
|
|
|
2024/03
|
107
|
105
|
77
|
94
|
120
|
99
|
101
|
55
|
63
|
76
|
78
|
108
|
99
|
105
|
100
|
122
|
108
|
70
|
95
|
100
|
88
|
100
|
115
|
64
|
41
|
63
|
52
|
81
|
62
|
95
|
90
|
|
2024/02
|
62
|
52
|
80
|
83
|
138
|
172
|
173
|
179
|
145
|
258
|
111
|
106
|
119
|
158
|
56
|
59
|
54
|
73
|
73
|
34
|
65
|
29
|
35
|
58
|
130
|
132
|
85
|
84
|
123
|
||
|
2024/01
|
160
|
194
|
59
|
89
|
130
|
133
|
51
|
109
|
151
|
151
|
173
|
250
|
329
|
200
|
66
|
79
|
104
|
120
|
63
|
63
|
68
|
38
|
50
|
53
|
53
|
59
|
70
|
90
|
103
|
199
|
261
|
|
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