diff --git a/src/lib/retention/retention-config.ts b/src/lib/retention/retention-config.ts
index e7472d1..6ad6739 100644
--- a/src/lib/retention/retention-config.ts
+++ b/src/lib/retention/retention-config.ts
@@ -50,6 +50,31 @@ export const retentionPolicies: RetentionPolicy[] = [
     batchSize: 50,
     description: 'Consent-Logs nach Ablaufdatum löschen (DSGVO: 3 Jahre)',
   },
+  // Monitoring Collections
+  {
+    name: 'monitoring-snapshots',
+    collection: 'monitoring-snapshots',
+    retentionDays: parseInt(process.env.RETENTION_MONITORING_SNAPSHOTS_DAYS || '7', 10),
+    dateField: 'createdAt',
+    batchSize: 500,
+    description: 'Monitoring-Snapshots älter als X Tage löschen',
+  },
+  {
+    name: 'monitoring-alert-history',
+    collection: 'monitoring-alert-history',
+    retentionDays: parseInt(process.env.RETENTION_MONITORING_ALERTS_DAYS || '90', 10),
+    dateField: 'createdAt',
+    batchSize: 100,
+    description: 'Alert-History älter als X Tage löschen',
+  },
+  {
+    name: 'monitoring-logs',
+    collection: 'monitoring-logs',
+    retentionDays: parseInt(process.env.RETENTION_MONITORING_LOGS_DAYS || '30', 10),
+    dateField: 'createdAt',
+    batchSize: 200,
+    description: 'Monitoring-Logs älter als X Tage löschen',
+  },
 ]
 
 /**