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TABLE 5 <br /> ' CANCER SLOPE FACTORS <br /> SURLAND HOMES-BRIDLE CREEK <br /> Tracy,California <br /> Oral Cancer Slope inhalation Cancer <br /> Factor Slope Factor <br /> ' Constituent in Soil (m /k -day)-1 Source (m -da )" Source <br /> BTEX <br /> Toluene NA IRIS NA IRIS <br /> ' Ethylbenzene 1.1E-02 OEHHA 8.70E-03 OEHHA <br /> Xylene(s) NA IRIS NA IRIS <br /> PAHs <br /> ' Acenaphthene NA IRIS NA IRIS <br /> Anthracene NA IRIS NA IRIS <br /> Benzo(a)anthracene 1.2E+00 OEHHA 3.9E-01 OEHHA <br /> ' Benzo(a)pyrene 1.2E+01 OEHHA 3.9E+00 OEHHA <br /> Benzo(b)fluoranthene 1.2E+00 OEHHA 3.9E-01 OHHHA <br /> Benzo(g,h,i)perylene NA IRIS NA IRIS <br /> ' Chrysene 1.2E-01 OEHHA 3.9E-02 OEHHA <br /> Dibenz(a,h)anthracene 4.1E+00 OEHHA 4.1E+00 OEHHA <br /> Fluoranthene NA IRIS NA IRIS <br /> ' Fluorene NA IRIS NA IRIS <br /> Naphthalene NA IRIS 1.2E-01 OEHHA <br /> Phenanthrene NA IRIS NA IRIS <br /> ' Pyrene NA IRIS I NA IRIS <br /> METALS <br /> Barium NA IRIS NA IRIS <br /> ' Beryllium NA IRIS 8.4E+00 OEHHA <br /> Chromium(Trivalent) NA IRIS NA ]RIS <br /> Cobalt NA IRIS NA 1RIS <br /> ' Copper NA IRIS NA IRIS <br /> Lead 8.5E-03 OEHHA 4.2E-02 OEHHA <br /> Mercury NA IRIS NA IRIS <br /> ' Molybdenum NA IRIS NA IRIS <br /> Nickel NA IRIS 9.1E-01 OEHHA <br /> Vanadium NA IRIS NA IRIS <br /> ' Zinc NA IRIS NA IRIS <br /> Abbreviations: <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> ' Cal/EPA=California Environmental Protection Agency <br /> EPA=U.S.Environmental Protection Agency <br /> IRIS=Integrated Risk Information System <br /> mg/kg=Milligrams per kilogram <br /> NA=Not available or not applicable <br /> OEHHA=Office of Environmental Health Hazard Assessment <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> ' Sources: <br /> IRIS information from the EPA on-line database(November 2008). <br /> ' OEHHA information from the Cal/EPA on-line Toxicity Criteria Database(November 2008). <br /> Page I of I From Science to Solutions <br />