diff --git a/tests/io/test_read_ebas.py b/tests/io/test_read_ebas.py
index 205764d20..508766a9d 100644
--- a/tests/io/test_read_ebas.py
+++ b/tests/io/test_read_ebas.py
@@ -246,6 +246,7 @@ def test_PROVIDES_VARIABLES(reader: ReadEbas):
         "SO4ugSm3",
         "concso4pm10",
         "concso4pm25",
+        "concso4pm1",
         "concso2",
         "vmrso2",
         "concpm10",
@@ -270,6 +271,10 @@ def test_PROVIDES_VARIABLES(reader: ReadEbas):
         "concno3",
         "concNno3pm10",
         "concNno3pm25",
+        "concNno3pm1",
+        "concno3pm10",
+        "concno3pm25",
+        "concno3pm1",
         "concnh4",
         "concNnh4",
         "concNhno3",
@@ -300,16 +305,13 @@ def test_PROVIDES_VARIABLES(reader: ReadEbas):
         "wetoxn",
         "pr",
         "prmm",
+        "concnh4pm10",
         "concnh4pm25",
+        "concnh4pm1",
         "concCocpm10",
         "concNno",
         "concCecpm10",
-        "concno3pm10",
         "concSso2",
-        "concso4pm25",
-        "concso4pm10",
-        "concnh4pm10",
-        "concno3pm25",
         "vmrnh3",
         "proxydryoxn",
         "proxywetpm25",
@@ -318,6 +320,7 @@ def test_PROVIDES_VARIABLES(reader: ReadEbas):
         "concprcpso4",
         "concCoc25",
         "concom25",
+        "concom1",
         "concprcpnh4",
         "concsscoarse",
         "proxydryhno3",