Laserfiche WebLink
TABLE 6 <br /> NON-CANCER REFERENCE DOSES <br /> MOUNTAIN HOUSE DEVELOPMENT SITE#6 <br /> Mountain House,San Joaquin County,California <br /> Oral RfD Inhalation RfD <br /> COPC in Soil (mg/kg-day) Source (mg/kg-day) Source <br /> BTEX <br /> Benzene 4.0E-03 IRIS 1.7E-02 OEHHAI <br /> Ethylbenzene 1.0E-01 IRIS 5.7E-01 OEHHAI <br /> Xylene(s) 2.0E-01 IRIS 2.0E-01 OEHHA' <br /> PAHs <br /> Acenaphthene 6.0E-02 IRIS 6.0E-02 IRIS <br /> Acenaphthylene NA IRIS NA IRIS <br /> Anthracene 3.0E-01 IRIS 3.0E-01 IRIS <br /> Benza(a)anthracene NA IRIS NA IRIS <br /> Benzo(a)pyrene NA IRIS NA IRIS <br /> Benzo(b)fluoranthene NA IRIS NA IRIS <br /> Benzo(g,h,i)perylene NA IRIS NA IRIS <br /> Benzo(k)fluoranthene NA IRIS NA IRIS <br /> Chrysene NA IRIS NA IRIS <br /> Dibenz(a,h)anthracene NA IRIS NA IRIS <br /> Fluoranthene 4.0E-02 IRIS 4.0E-02 IRIS <br /> Fluorene 4.0E-02 IRIS 4.0E-02 IRIS <br /> Indeno(1,2,3-cd)pyrene NA IRIS NA IRIS <br /> Naphthalene 2.0E-02 IRIS 2.6E-03 OEHHAI <br /> Phenanthrene NA IRIS NA IRIS <br /> Pyrene 3.0E-02 IRIS 3.0E-02 IRIS <br /> Abbreviations: <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> Cal/EPA=California Environmental Protection Agency <br /> COPC=Constituent of potential concern <br /> EPA=United States Environmental Protection Agency <br /> IRIS=Integrated Risk Information System <br /> kg=Kilograms <br /> m3/day=Cubic meters per day <br /> mg=Milligrams <br /> NA=Not available or not applicable <br /> OEHHA=Office of Environmental Health Hazard Assessment <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> REL=Reference Exposure Level <br /> RfD=Reference Dose <br /> gg =Micrograms <br /> gg/m3=Micrograms per cubic meter <br /> Notes: <br /> 1. Chronic REL converted to RfD by multiplying REL(gg/xri)by(1 mg/1,000 gg*20 m/day* 1/70 k€ <br /> 2. Consistent with PEA Guidance Manual,if no inhalation RID was available the oral RfD was used. <br /> 3. Rfd for 2-methylnaphthalene used to evaluate both 1-methylnaphthalene and 2-methylnaphthalene <br /> Sources: <br /> IRIS information from the EPA on-line database(October 2010). <br /> OEHHA information from the Cal/EPA on-line Toxicity Criteria Database(October 2010). <br /> .5AIC <br /> Page 1 of 1 From science to solutions <br />