diff --git a/src/Model/Pollutants/PollutantsList.py b/src/Model/Pollutants/PollutantsList.py
index 2526329a..e8855076 100644
--- a/src/Model/Pollutants/PollutantsList.py
+++ b/src/Model/Pollutants/PollutantsList.py
@@ -38,7 +38,10 @@ class PollutantsList(PamhyrModelList):
         ok = True
 
         # Delete previous data
-        execute("DELETE FROM Pollutants")
+        execute(
+            "DELETE FROM Pollutants " +
+            f"WHERE scenario = {self._status.scenario_id}"
+        )
 
         for sl in self._lst:
             ok &= sl._db_save(execute, data)