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TABLE 5 <br /> CALCULATED HAZARD QUOTIENT/CANCER RISK OF AIR AMBIENT AND INDOOR <br /> AIR SAMPLES <br /> 2911 E. Fremont Street, Stockton, CA <br /> Ambient Air Samples <br /> AA1 Hazard Cancer AA2 Hazard Cancer <br /> Compound IUR RfC Concentrations Quotient Risk Concentrations Quotient Risk <br /> (pg/m) AA1 AA1 (pg/M3) AA2 AA2 <br /> TPHg NC 49 11 5.13E-02 NC 7.9 3.68E-02 NC <br /> Benzene 2.9E-Og 60 0.71 2.71 1.68E-06 0.45 1.71E-03 1.06E-06 <br /> Toluene NC 300 1.7 1.29E-03 NC 1.1 8.37E-04 NC <br /> Ethylbenzene 2.5E-06 2000 0.37 4.22E-05 7.54E-08 0.24 2.74E-05 4.89E-08 <br /> Total Xylenes NC 700 1.5 4.89E-04 NC 1.06 3.46E-04 NC <br /> Naphthalene 3.4E-05 9 ND NA NA ND NA NA <br /> Cumulative Hazard QuotienURisk 5.58E-02 1.75E-06 3.97E-02 1.11E-06 <br /> Indoor Air Samples <br /> IA1 Hazard IA2 Hazard <br /> Compound IUR RfC Concentrations Cancer Cancer <br /> p (pg/m3) Quotient Risk IA1 ConcentrationslQuotientARisk IA2 <br /> TPHg NC 49 34 1.58E-01 NC 30 1.41 NC <br /> Benzene 2.9E-ii 60 1.6 6.09E-03 3.78E-06 1.3 4.95E-03 3.07E-06 <br /> Toluene NC 300 7.1 5.40E-03 NC 6.8 5.18E-03 NC <br /> Ethylbenzene 2.5E-06 2000 1.1 1.26E-04 2.24E-07 1.0 1.14E-04 2.04E-07 <br /> Total Xylenes NC 700 6.5 2.12E-03 NC 6.3 2.05E-03 NC <br /> Naphthalene 3.4E-05 9 ND 1.19E-02 NA 0.47 1.19E-02 1.30E-06 <br /> Cumulative Hazard Quotient/Risk 1.84E-01 4.01E-06 1.64E-01 4.58E-06 <br /> Notes: <br /> IUR = Inhalation unit risk, representing the increase in lifetime cancer risk per microgram of chemical inhaled per <br /> cubic meter <br /> RIC = Reference concentration,the concentration to which humans may be exposed without risk of adverse health <br /> effects <br /> pg/ri = Micrograms per cubic meter <br /> NC = Non-carcinogen,not used in evaluating risk <br /> ND = Non-detect(below laboratory detection limit),not used in evaluating risk <br /> NA = Not applicable,not used in evaluating risk <br />