diff --git a/src/main/java/com/hisense/monitormanage/service/RoadDataService.java b/src/main/java/com/hisense/monitormanage/service/RoadDataService.java
index 122f4fd..15718df 100644
--- a/src/main/java/com/hisense/monitormanage/service/RoadDataService.java
+++ b/src/main/java/com/hisense/monitormanage/service/RoadDataService.java
@@ -114,7 +114,7 @@ public class RoadDataService {
 
     public List<RoadData> listRoadDataByTimeRegion(String start,String end){
         QueryWrapper<RoadData> wrapper = new QueryWrapper<>();
-        wrapper.between("dt",start,end);
+        wrapper.between("dt",start,end).gt("pm10",150);
         List<RoadData> list = roadDataMapper.selectList(wrapper);
         return list;
     }
diff --git a/src/main/resources/mapper/RoadDataMapper.xml b/src/main/resources/mapper/RoadDataMapper.xml
index 112086d..d5aafbd 100644
--- a/src/main/resources/mapper/RoadDataMapper.xml
+++ b/src/main/resources/mapper/RoadDataMapper.xml
@@ -18,8 +18,10 @@
 
     <select id="selectRoadData" resultType="com.hisense.monitormanage.entity.RoadData">
         SELECT * FROM t_road_data WHERE pm10 > 150 ORDER BY dt DESC
-        <bind name="page" value="(page-1)*pageSize"/>
-        limit #{page},#{pageSize}
+        <if test="page!=null and '' != page and pageSize != null and '' != pageSize">
+            <bind name="page" value="(page-1)*pageSize"/>
+            limit #{page},#{pageSize}
+        </if>
     </select>
 
     <select id="getByMaxId" resultType="com.hisense.monitormanage.entity.RoadData">