diff --git a/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml b/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml
index 244e2f2..96a9f66 100644
--- a/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml
+++ b/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml
@@ -40,7 +40,7 @@
         <if test="params.endTime != null and params.endTime != ''">
             AND TRUNC(d.REPORT_TIME)&lt;= TO_DATE(#{params.endTime}, 'YYYY-MM-DD HH24:MI:SS')
         </if>
-        ORDER BY d.report_time ASC
+        ORDER BY d.report_time DESC
     </select>
 
     <select id="selectAvgDsByMonth" parameterType="map" resultType="map">
diff --git a/ruoyi-ui/src/views/dataStatistics/realtime/left-bottom.vue b/ruoyi-ui/src/views/dataStatistics/realtime/left-bottom.vue
index 2eef1c0..9f33c6d 100644
--- a/ruoyi-ui/src/views/dataStatistics/realtime/left-bottom.vue
+++ b/ruoyi-ui/src/views/dataStatistics/realtime/left-bottom.vue
@@ -65,17 +65,17 @@ export default {
           label: "上报时间",
           prop: "reportTime",
         },
-        
+
         {
           label: "设备编号",
           prop: "sn",
         },
-      
+
         {
           label: "读数",
           prop: "ds",
         },
-     
+
       ],
       pager: {
         pageNum: 1,
@@ -124,6 +124,7 @@ export default {
             this.tableData = res.rows.map((item, index) => {
               return {
                 ...item,
+                ds: item.ds + " mg/m³",
                 reportTime: moment(item.reportTime).format(
                   "YYYY-MM-DD HH:mm:ss"
                 ),