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Figure 4 <br /> Average Metal Concentrations in Soil and Oil 29 120.7 <br /> 20 42.2 65.5 49.1\ 7 <br /> 18 168.8 179.6 59.8 61.3 67. 78.6 69.7 41.4 48.8 <br /> 168.8= Concentration <br /> N 16 exceeding graph scale <br /> C <br /> c� <br /> 14 <br /> 12 <br /> IU <br /> as <br /> c 10 <br /> v 8 <br /> 6 <br /> a� <br /> 4 <br /> CM 2 <br /> L <br /> 4) <br /> Q 0 <br /> — _ <br /> z co <br /> Q Q m m U U ~ <br /> co <br /> > <br /> ❑ Soil TPHc>100 mg/kg <br /> ❑ Soil TPHc<100 mg/kg O G <br /> ❑ Oil IN' <br /> U Metal �r�ff`o <br /> TPHc=Total petroleum hydrocarbons <br /> calculated as crude oil From Science to Solutions <br /> mg/kg = milligrams per kilogram <br />