diff --git a/src/micropolisj/engine/Micropolis.java b/src/micropolisj/engine/Micropolis.java
index 1eb3ded..f10e839 100644
--- a/src/micropolisj/engine/Micropolis.java
+++ b/src/micropolisj/engine/Micropolis.java
@@ -1028,36 +1028,6 @@ public class Micropolis
 		}
 	}
 
-	static int getPollutionValue(int tile)
-	{
-		if (tile < POWERBASE)
-		{
-			if (tile >= HTRFBASE)
-				return 75; //heavy traffic
-			if (tile >= LTRFBASE)
-				return 50; //light traffic
-
-			if (isFire(tile))
-				return 90; //active fire
-
-			if (isRadioactive(tile))
-				return 255; //radioactivity
-
-			return 0;
-		}
-
-		if (tile <= LASTIND)
-			return 0;
-
-		if (tile < PORTBASE)
-			return 50;
-
-		if (tile <= LASTPOWERPLANT)
-			return 100;
-
-		return 0;
-	}
-
 	public int getTrafficDensity(int xpos, int ypos)
 	{
 		if (testBounds(xpos, ypos)) {
diff --git a/src/micropolisj/engine/TileConstants.java b/src/micropolisj/engine/TileConstants.java
index 728aa5c..7023b01 100644
--- a/src/micropolisj/engine/TileConstants.java
+++ b/src/micropolisj/engine/TileConstants.java
@@ -276,6 +276,38 @@ public class TileConstants
 		}
 	}
 
+	public static int getPollutionValue(int tile)
+	{
+		tile &= LOMASK;
+
+		if (tile < POWERBASE)
+		{
+			if (tile >= HTRFBASE)
+				return 75; //heavy traffic
+			if (tile >= LTRFBASE)
+				return 50; //light traffic
+
+			if (isFire(tile))
+				return 90; //active fire
+
+			if (isRadioactive(tile))
+				return 255; //radioactivity
+
+			return 0;
+		}
+
+		if (tile <= LASTIND)
+			return 0;
+
+		if (tile < PORTBASE)
+			return 50;
+
+		if (tile <= LASTPOWERPLANT)
+			return 100;
+
+		return 0;
+	}
+
 	public static boolean isAnimated(int tile)
 	{
 		TileSpec spec = Tiles.get(tile & LOMASK);