diff --git a/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java b/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
index 004a50a..0b21880 100644
--- a/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
+++ b/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
@@ -446,7 +446,7 @@
                     //notificationを作成
                     Notification notification = new Notification(groups.get(i).getRequestList().getRequests().get(j),groups.get(i),null);
                     //指定したkey(業番)を持っているHashMapがなければ作成する。
-                    if(codeToNotification.get(groups.get(i).getRequestList().getRequests().get(j))==null){
+                    if(codeToNotification.get(groups.get(i).getRequestList().getRequests().get(j).getLocation())==null){
                         notifications.add(notification);
                         codeToNotification.put(groups.get(i).getRequestList().getRequests().get(j).getLocation(),notifications);
                     }else{
@@ -457,8 +457,12 @@
             }
         }
         //cosmosから区画情報から取得
-        int areaInfoId =(int)((NowLat+90)/0.1)+(int)((NowLon/0.1)*1800);
-        codeToFeature =cosmos.getAreaInfo(areaInfoId).getFeature();
+
+        CosmosLocation cosmosLocation = new CosmosLocation();
+        cosmosLocation.setLatitude(NowLat);
+        cosmosLocation.setLongitude(NowLon);
+        int areaInfoId = cosmosLocation.hashCode();
+        codeToFeature=cosmos.getAreaInfo(areaInfoId).getFeature();
         //codeToFeatureの中の50m圏外Featureを削除していく。
         //HashMapを順番に実行
         for(HashMap.Entry<Integer, ArrayList<Feature>> e : codeToFeature.entrySet()) {