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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\ // 70.2 <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 /> as <br /> 10 <br /> c <br /> v 8 <br /> 6 <br /> a� <br /> 4 <br /> C 2 <br /> m <br /> Q 0 <br /> 4- EM 13=� -, I 1 0:0 1 ,_n I EEh-F----F-- I> <br /> _ :30 o m z —� N <br /> Q Q m m UU 22! c� <br /> ❑ Soil TPHc>100 mg/kg <br /> ❑ Soil TPHc<100 mg/kg O zz <br /> ❑ Oil 11 <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 />