diff --git a/main.py b/main.py
index 95433e1..1f68148 100644
--- a/main.py
+++ b/main.py
@@ -39,6 +39,19 @@ def format_date(dt):
     return dt.strftime("%a %d").lower()
 
 
+def pollen_desc(index):
+    if index < 2.5:
+        return f"{index} l"
+    elif index < 4.9:
+        return f"{index} l-m"
+    elif index < 7.3:
+        return f"{index} m"
+    elif index < 9.7:
+        return f"{index} m-h"
+    else:
+        return f"{index} h"
+
+
 def relative_day_to_date(rel_dt):
     dt = datetime.now()
     day = timedelta(days=1)
@@ -89,7 +102,7 @@ async def fetch_pollen(zipcode):
                     datetime.fromisoformat(data["ForecastDate"])
                 ),
                 "periods": [
-                    {"index": d["Index"], "period": relative_day_to_date(d["Type"])}
+                    {"index": pollen_desc(d["Index"]), "period": relative_day_to_date(d["Type"])}
                     for d in data["Location"]["periods"]
                 ],
             }