diff --git a/Modules/TPC/include/TPC/AtmosPressureReductor.h b/Modules/TPC/include/TPC/AtmosPressureReductor.h
index 814f5c086..29a3a782e 100644
--- a/Modules/TPC/include/TPC/AtmosPressureReductor.h
+++ b/Modules/TPC/include/TPC/AtmosPressureReductor.h
@@ -22,10 +22,10 @@
 namespace o2::quality_control_modules::tpc
 {
 
-/// \brief A Reductor for atmospheric pressure
+/// \brief A reductor for atmospheric pressure
 ///
-/// A Reductor for atmospheric pressure
-/// It produces a branch in the format: "pressure1/F:errPressure1:pressure2:errPressure2"
+/// A reductor for atmospheric pressure
+/// It produces a branch in the format: "cavernPressure1/F:errCavernPressure1:cavernPressure2:errCavernPressure2:surfacePressure:errSurfacePressure"
 
 class AtmosPressureReductor : public quality_control::postprocessing::ReductorConditionAny
 {
@@ -39,10 +39,12 @@ class AtmosPressureReductor : public quality_control::postprocessing::ReductorCo
 
  private:
   struct {
-    Float_t pressure1;
-    Float_t errPressure1;
-    Float_t pressure2;
-    Float_t errPressure2;
+    Float_t cavernPressure1;
+    Float_t errCavernPressure1;
+    Float_t cavernPressure2;
+    Float_t errCavernPressure2;
+    Float_t surfacePressure;
+    Float_t errSurfacePressure;
   } mStats;
 };
 
diff --git a/Modules/TPC/run/tpcQCAtmosPressureTrending.json b/Modules/TPC/run/tpcQCAtmosPressureTrending.json
index bf7be4988..e71d48c09 100644
--- a/Modules/TPC/run/tpcQCAtmosPressureTrending.json
+++ b/Modules/TPC/run/tpcQCAtmosPressureTrending.json
@@ -47,21 +47,21 @@
           "plots": [
             {
               "name": "atmosPressure1_Trending",
-              "title": "Trend of atmospheric pressure 1 over time",
-              "varexp": "EnvVars.pressure1:time",
+              "title": "Trend of atmospheric cavern pressure 1 over time",
+              "varexp": "EnvVars.cavernPressure1:time",
               "selection": "",
               "option": "*L",
-              "graphAxisLabel": "atmos. Pressure:time",
-              "graphErrors": "EnvVars.errPressure1:0"
+              "graphAxisLabel": "atmospheric Cavern Pressure:time",
+              "graphErrors": "EnvVars.errCavernPressure1:0"
             },
             {
               "name": "atmosPressure2_Trending",
-              "title": "Trend of atmospheric pressure 2 over time",
-              "varexp": "EnvVars.pressure2:time",
+              "title": "Trend of atmospheric cavern pressure 2 over time",
+              "varexp": "EnvVars.cavernPressure2:time",
               "selection": "",
               "option": "*L",
-              "graphAxisLabel": "atmos. Pressure:time",
-              "graphErrors": "EnvVars.errPressure2:0"
+              "graphAxisLabel": "atmospheric Cavern Pressure:time",
+              "graphErrors": "EnvVars.errCavernPressure2:0"
             }
           ],
           "initTrigger": [
diff --git a/Modules/TPC/src/AtmosPressureReductor.cxx b/Modules/TPC/src/AtmosPressureReductor.cxx
index 4f7da87d9..5b90af35a 100644
--- a/Modules/TPC/src/AtmosPressureReductor.cxx
+++ b/Modules/TPC/src/AtmosPressureReductor.cxx
@@ -28,26 +28,33 @@ void* AtmosPressureReductor::getBranchAddress()
 
 const char* AtmosPressureReductor::getBranchLeafList()
 {
-  return "pressure1/F:errPressure1:pressure2:errPressure2";
+  return "cavernPressure1/F:errCavernPressure1:cavernPressure2:errCavernPressure2:surfacePressure:errSurfacePressure";
 }
 
 bool AtmosPressureReductor::update(ConditionRetriever& retriever)
 {
   if (auto env = retriever.retrieve<o2::grp::GRPEnvVariables>()) {
-    std::vector<float> pressureValues; 
+    std::vector<float> pressureValues;
 
-    // pressure 1
+    // Cavern pressure 1
     for (const auto& [time, p] : env->mEnvVars["CavernAtmosPressure"]) {
-      pressureValues.emplace_back(p);
+      pressureValues.emplace_back((float)p);
     }
-    //calcMeanAndStddev(pressureValues, mStats.pressure1, mStats.errPressure1);
+    calcMeanAndStddev(pressureValues, mStats.cavernPressure1, mStats.errCavernPressure1);
     pressureValues.clear();
 
-    // pressure 2
+    // Cavern pressure 2
     for (const auto& [time, p] : env->mEnvVars["CavernAtmosPressure2"]) {
-       pressureValues.emplace_back(p);
+      pressureValues.emplace_back((float)p);
     }
-    //calcMeanAndStddev(pressureValues, mStats.pressure2, mStats.errPressure2);
+    calcMeanAndStddev(pressureValues, mStats.cavernPressure2, mStats.errCavernPressure2);
+    pressureValues.clear();
+
+    // Surface pressure
+    for (const auto& [time, p] : env->mEnvVars["SurfaceAtmosPressure"]) {
+      pressureValues.emplace_back((float)p);
+    }
+    calcMeanAndStddev(pressureValues, mStats.surfacePressure, mStats.errSurfacePressure);
     return true;
   }
   return false;