diff --git a/src/main/java/gregtech/api/enums/OrePrefixes.java b/src/main/java/gregtech/api/enums/OrePrefixes.java
index da2f76b3..a77bf938 100644
--- a/src/main/java/gregtech/api/enums/OrePrefixes.java
+++ b/src/main/java/gregtech/api/enums/OrePrefixes.java
@@ -461,6 +461,7 @@ public enum OrePrefixes {
         toolHeadChainsaw.mCondition = new ICondition.And<ISubTagContainer>(new ICondition.Not<ISubTagContainer>(SubTag.NO_SMASHING), new ICondition.Not<ISubTagContainer>(SubTag.BOUNCY));
         toolHeadWrench.mCondition = new ICondition.And<ISubTagContainer>(new ICondition.Not<ISubTagContainer>(SubTag.NO_SMASHING), new ICondition.Not<ISubTagContainer>(SubTag.BOUNCY));
         toolHeadBuzzSaw.mCondition = new ICondition.And<ISubTagContainer>(new ICondition.Not<ISubTagContainer>(SubTag.NO_SMASHING), new ICondition.Not<ISubTagContainer>(SubTag.BOUNCY));
+        turbineBlade.mCondition = new ICondition.And<ISubTagContainer>(new ICondition.Not<ISubTagContainer>(SubTag.NO_SMASHING), new ICondition.Not<ISubTagContainer>(SubTag.BOUNCY));
 
         rotor.mCondition = new ICondition.Nor<ISubTagContainer>(SubTag.CRYSTAL, SubTag.STONE, SubTag.BOUNCY);
 
diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java
index 25b620d6..aaad5070 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java
@@ -64,8 +64,11 @@ public class GT_MetaTileEntity_Hatch_Muffler extends GT_MetaTileEntity_Hatch {
     }
 
     public boolean polluteEnvironment() {
-    	GT_Pollution.addPollution(new ChunkPosition(this.getBaseMetaTileEntity().getXCoord(), this.getBaseMetaTileEntity().getYCoord(), this.getBaseMetaTileEntity().getZCoord()), calculatePollutionReduction(10000));
-        return (mTier > 1 && getBaseMetaTileEntity().getRandomNumber(mTier) != 0) || getBaseMetaTileEntity().getAirAtSide(getBaseMetaTileEntity().getFrontFacing());
+    	if(getBaseMetaTileEntity().getAirAtSide(getBaseMetaTileEntity().getFrontFacing())){
+    		GT_Pollution.addPollution(new ChunkPosition(this.getBaseMetaTileEntity().getXCoord(), this.getBaseMetaTileEntity().getYCoord(), this.getBaseMetaTileEntity().getZCoord()), calculatePollutionReduction(10000));
+    		return true;
+    		}
+        return false;
     }
     
     public int calculatePollutionReduction(int aPollution){