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
14 Jul
Tue
15 Jul
Wed
16 Jul
Thu
17 Jul
Fri
18 Jul
Sat
19 Jul
Sun
20 Jul
Real-time AQI (Monitoring Station in Xuchang)
开发区
3814
PM2.5
38
PM10
86
O3
0.5
CO
2
SO2
19
NO2
市一中
3515
PM2.5
35
PM10
111
O3
0.2
CO
3
SO2
13
NO2
许昌学院
4115
PM2.5
41
PM10
111
O3
0.6
CO
2
SO2
12
NO2
芙蓉广场
3817
PM2.5
31
PM10
121
O3
0.3
CO
2
SO2
9
NO2
新元大道996号
3721
PM2.5
31
PM10
118
O3
0.4
CO
3
SO2
11
NO2
望田路111号
3415
PM2.5
28
PM10
108
O3
0.4
CO
2
SO2
18
NO2
Air quality in the last 12 months (Xuchang)
|
2025/06
|
49
|
60
|
62
|
63
|
54
|
55
|
70
|
63
|
51
|
62
|
52
|
50
|
51
|
45
|
41
|
64
|
51
|
33
|
25
|
27
|
43
|
34
|
43
|
39
|
51
|
29
|
32
|
27
|
26
|
23
|
|
|
2025/05
|
75
|
112
|
62
|
56
|
163
|
187
|
178
|
101
|
94
|
45
|
52
|
62
|
66
|
63
|
66
|
79
|
167
|
90
|
105
|
77
|
75
|
87
|
84
|
62
|
67
|
58
|
89
|
72
|
91
|
71
|
48
|
|
2025/04
|
68
|
60
|
59
|
83
|
72
|
80
|
81
|
101
|
102
|
115
|
82
|
251
|
93
|
57
|
60
|
96
|
94
|
101
|
67
|
66
|
61
|
75
|
102
|
89
|
77
|
74
|
89
|
57
|
58
|
80
|
|
|
2025/03
|
98
|
47
|
44
|
41
|
80
|
95
|
83
|
89
|
99
|
92
|
95
|
141
|
158
|
56
|
78
|
50
|
49
|
61
|
58
|
47
|
54
|
67
|
78
|
208
|
69
|
89
|
99
|
190
|
65
|
58
|
74
|
|
2025/02
|
95
|
157
|
126
|
45
|
48
|
53
|
107
|
64
|
59
|
74
|
122
|
125
|
74
|
81
|
70
|
73
|
80
|
91
|
90
|
85
|
102
|
108
|
104
|
73
|
70
|
92
|
120
|
134
|
|||
|
2025/01
|
162
|
119
|
134
|
208
|
119
|
63
|
71
|
56
|
53
|
91
|
69
|
64
|
92
|
137
|
64
|
55
|
87
|
107
|
84
|
172
|
239
|
175
|
76
|
146
|
133
|
70
|
35
|
88
|
350
|
206
|
107
|
|
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
|
|
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