ATSDR - Health Consultation - Barton Springs Pool, Austin, Travis County, Texas

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HEALTH CONSULTATION

BARTON SPRINGS POOL
AUSTIN, TRAVIS COUNTY, TEXAS

TABLES

Table 1. Analytes for which at least one sample was reported above the detection limit in Sediment/Soil. (All values presented in milligrams per kilogram)

Analyte Average¹ Min - Max^* Frequency of Detection Screening Value Basis for Screening

Acenaphthene 0.42 ND⁹ - 4.5^* 2/45 3,000 RMEGc²

Acenaphthylene 0.33 ND - 0.97^* 2/45 - PAH Assessment³

Aluminum 29,873 2,380 - 89,000 23/23 100,000 EMEGc⁴

Anthracene 0.32 ND - 0.96^* 9/45 20,000 PAH Assessment

Antimony 1.25 1.08 - 1.60 6/6 20 RMEGc

Aroclor 1260 0.05 ND - 0.25 1/11 1.0 RMEGc (Aroclor 1254)

Arsenic 8.24 ND - 23.0 43/48 20 EMEGc

Barium 238.5 210 - 285 6/6 4,000 RMEGc

Benzanthracene, 1,2- 0.50 0.43 - 0.62 3/3 - PAH Assessment

Benzo(a)Anthracene 0.68 ND - 5.09 18/42 - PAH Assessment

Benzo(a)pyrene 0.84 ND - 6.50 21/45 - PAH Assessment

Benzo(b)Fluoranthene 1.02 ND - 8.70 23/45 - PAH Assessment

Benzo(e)pyrene 0.95 0.41 - 1.39 5/5 - PAH Assessment

Benzo(g,h,i)Perylene 0.64 ND - 4.55 18/43 - PAH Assessment

Benzo(k)Fluoranthene 0.70 ND - 6.63 21/45 - PAH Assessment

Benzoic Acid 1.69 ND - 4.79^* 1/32 200,000 RMEGc

Beryllium 2.48 2.09 - 3.10 6/6 100 RMEGc

Bis(2-Ethylhexyl)Phthalate 0.66 ND - 3.00 17/34 50 CREG⁵

Bismuth 0.43 0.28 - 0.54 6/6 <5.0 Background⁶

Cadmium 0.82 ND - 3.39^* 33/49 10 EMEGc

Cerium 75.2 64.0 - 100.0 6/6 36 - 101 Background

Chloronaphthalene, 1+2- 0.84 ND - 2.80 1/33 4,000 RMEGc

Chromium 20.6 ND - 83.0 43/44 200 RMEGc

Chrysene 0.88 ND - 6.92 24/45 - PAH Assessment

Cobalt 12.7 11.0 - 16.0 6/6 500 EMEGc

Copper 99.7 3.8 - 1,200 48/48 2,000 EMEGc

Coronene 0.18 0.17 - 0.20 2/2 - PAH Assessment

Cresol, M+P- 0.62 ND - 3.11 4/31 3,000 RMEGc

Cresols, Total 0.38 ND - 1.80 1/22 3,000 RMEGc

DDE, 4,4'- 0.01 ND - 0.25^* 1/32 2.0 CREG

Dibenzanthracene, 1,2,5,6- 0.37 0.23 - 0.62 3/3 - PAH Assessment

Dibenzo(a,h)Anthracene 0.36 ND - 0.96^* 5/42 - PAH Assessment

Dieldrin 0.01 ND - 0.25^* 1/32 0.04 CREG

Dimethylnaphthalene, 2,6- 0.08 ND - 0.12 2/3 4,900 PCL

Dimethylphenyethylamine, A,A'- 1.08 ND - 1.52 1/7 - -

Di-N-Butyl Phthalate 0.51 ND - 2.77 2/35 5,000 RMEGc

Di-N-Octyl Phthalate 0.44 ND - 1.08 1/35 20,000 EMEGc

Fluoranthene 1.28 ND - 13.3 26/45 - PAH Assessment

Fluorene 0.35 0.00005 - 0.97^* 2/2 - PAH Assessment

Gallium 17.7 14.0 - 21.3 6/6 <5 - 70 Background

Hentriacosane 1.9 1.90 1/1 - -

Indeno(1,2,3-cd)Pyrene 0.67 ND - 4.51 19/43 - PAH Assessment

Iron 16,495 1,170 - 43,000 24/24 1,000 - 100,000 Background

Lanthanum 39.3 32.0 - 52.0 6/6 30 - 200 Background

Lead 14.6 1.79 - 40.0 50/50 400 EPA⁷

Lithium 58.2 50.5 - 69.5 6/6 5 - 130 Background

Manganese 944 743 - 1,200 6/6 3,000 RMEGc

Mercury 0.07 ND - 0.28 17/45 <0.01 - 4.6 Background

Methylphenanthrene, 1- 0.01 ND - 0.02 2/3 - PAH Assessment

Molybdenum 1.7 1.50 - 2.06 6/6 300 RMEGc

Naphthalene 0.33 ND - 0.97^* 2/45 1,000 RMEGc

Nickel 17.4 1.67 - 44.0 41/41 1,000 RMEGc

Niobium 21.6 17.0 - 32.0 6/6 <10 - 100 Background

Nonacosane 4.8 4.80 1/1 - -

Perylene 0.34 0.29 - 0.42 3/3 - PAH Assessment

Petroleum Hydrocarbons, C6-C12 40.1 19.0 - 69.0 3/3 - PCL (Table-Text)¹⁰

Petroleum Hydrocarbons, C6-C35 64.8 ND - 70.0 2/3 - PCL (Table-Text)

Petroleum Hydrocarbons, C12-C28 53.5 ND - 70.0 2/3 - PCL (Table-Text)

Petroleum Hydrocarbons, Total 177.0 ND - 1,100 16/18 - PCL (Table-Text)

Phenanthrene 0.55 ND - 3.61 19/45 - PAH Assessment

Polychlorinated Biphenyl 0.07 ND - 0.50^* 1/30 0.4 CREG

Pyrene 1.19 ND - 12.7 25/45 - PAH Assessment

Scandium 12.4 9.8 - 15.0 6/6 5 - 50 Background

Silver 1.95 ND - 6.80^* 18/38 300 RMEGc

Strontium 332.5 120 - 796 6/6 30,000 RMEGc

Tantalum 1.58 1.10 - 2.08 6/6 <1.0 Background⁸

Thorium 12.7 10.6 - 17.0 6/6 1.4 - 18.5 Background⁸

Titanium 2,987 1,650 - 5,100 9/9 - Background

Uranium 2.80 2.50 - 3.12 6/6 0.68 - 7.9 Background

Vanadium 115.8 99.0 - 136.0 6/6 200 EMEGc

Yttrium 26.4 21.5 - 38.0 6/6 10 - 150 Background

Zinc 44.4 ND - 130.0 47/48 20,000 EMEGc

¹ Non-detects were included in the calculation of the averages as ½ the detection limit.
² RMEGc based on EPA reference dose, child scenario
³ Considered in assessment of PAH carcinogenic risk
⁴ EMEGc based on ATSDR minimal risk level, child scenario
⁵ CREG based on EPA cancer slope factor and one in one million risk level
⁶ Naturally occurring analyte. Sources: U.S. Geological Survey (ATSDR, Health Assessment Guidance Manual)
⁷ Residential soil screening level from EPA Integrated Uptake Biokinetic Model.
⁸ U.S. Geological Survey (5 and 95 %tiles) from http://water.usgs.gov/pubs/wri/wri994185/html/element.htm
⁹ Non-detect
¹⁰ TCEQ protective contaminant levels
^* Max value is the highest non-detect value, actual maximum reported value was lower than the value listed here.

Table 2. Analytes for which at least one sample was reported above the detection limit in water. (All values presented in micrograms per Liter)

Analyte Average¹ Min - Max^* Frequency of Detection Screening Value Basis for Screening

Aluminum 24.0 1.69 - 46.4 2/2 20,000 EMEGc³

Arsenic 1.77 ND² - 46.0 19/136 10 MCL⁴

Atrazine 0.18 ND - 2.50^* 22/36 3 MCL

Barium 65.8 ND - 600 80/87 700 RMEGc⁵

Benzene 0.71 ND - 2.50^* 1/40 5 MCL

Beryillium 0.35 ND - 1.50^* 1/44 4 MCL

Bis(2-Ethylhexyl)Phthalate 3.87 ND - 5.60 1/11 3 CREG⁶

Boron 149 60 - 560 15/15 100 EMEGc

Butyl Hexadecanoate 11.0 11.0 1/1 - -

Cadmium 1.08 ND - 5.0 7/146 5 MCL

Carbaryl 0.36 ND - 2.50^* 7/33 1,000 RMEGc

Chromium 3.36 ND - 30.0 11/98 100 MCL

Cobalt 1.92 ND - 6.0^* 1/38 100 MCL

Copper 2.63 ND - 17.0 35/157 300 EMEGc

De-Ethyl Atrazine 0.02 0.006 - 0.05^* 22/223 3 MCL (Atrazine)

Diazinon 0.12 ND - 1.0^* 10/51 2 EMEGc

Fluoride 208 ND - 650 218/221 2,000 EPA NSDWR⁷

Iron 25.7 ND - 622 70/146 300 EPA NSDWR

Lead 8.72 ND - 50^* 34/184 10 MCL

Lithium 11.8 ND - 31.0 34/37 490 PCL (Residential)

Manganese 2.40 ND - 37.0 19/104 600 RMEGc

Mercury 0.06 ND - 0.20 5/99 2 MCL

Methylene Chloride 1.05 ND - 5.0^* 1/39 5 MCL

Metolochlor 0.02 ND - 0.10^* 1/32 2,000 RMEGc

Molybdenum 7.76 ND - 30.0^* 3/44 50 RMEGc

Nickel 3.97 ND - 20.0^* 8/85 200 RMEGc

Petroleum Hydrocarbons, Total 1,093 ND - 14,000 8/31 - PCL (Table-Text)⁸

Prometon 0.03 ND - 0.10 2/35 200 RMEGc

Selenium 0.63 ND - 2.50^* 8/90 50 MCL

Silica 11,175 9,300 - 12,900 137/137 - Low toxicity by this route

Silver 0.59 ND - 4.0 6/96 50 RMEGc

Simazine 0.02 ND - 0.08 12/35 4 MCL

Strontium 1,124 500 - 3,200 42/42 6,000 RMEGc

Tetrachloroethylene 0.92 ND - 2.50^* 12/40 5 MCL

Thallium 3.92 ND - 6.0 1/6 2 MCL

Toluene 0.77 ND - 2.50^* 1/40 200 EMEGc

Triazines, Total 0.02 ND - 0.03 1/3 3 MCL (Atrazine)

Trichloroethane, 1,1,1- 0.92 ND - 3.90^* 2/40 200 MCL

Trichloroethylene 0.80 ND - 2.50^* 1/35 5 MCL

Trichloromethane 0.83 ND - 2.65^* 1/40 80 MCL

Xylenes, Total 1.81 ND - 2.90^* 1/10 10,000 MCL

Zinc 6.74 ND - 98.1 55/170 3,000 EMEGc

¹ Non-detects were included in the calculation of the averages as ½ the detection limit.
² Non-detect
³ EMEGc based on ATSDR minimal risk level, child scenario
⁴ EPA primary drinking water standad
⁵ RMEGc based on EPA reference dose, child scenario
⁶ CREG based on EPA cancer slope factor and one in one million risk level
⁷ EPA National secondary drinking water regulation
⁸ TCEQ protective contaminant level
^* Max value is the highest non-detect value, actual maximum reported value lower than the value listed here.

Table 3. Analytes Selected for Further Consideration. (Analytes were selected when any single value exceeded a screening value)

Analyte Media Basis for Selection

Acenaphthylene Sediment PAH Cancer Risk Assessment

Anthracene Sediment PAH Cancer Risk Assessment

Benzo(a)anthracene Sediment PAH Cancer Risk Assessment

Benzo(a)pyrene Sediment PAH Cancer Risk Assessment

Benzo(b)Fluoranthene Sediment PAH Cancer Risk Assessment

Benzo(e)pyrene Sediment PAH Cancer Risk Assessment

Benzo(g,h,i)Perylene Sediment PAH Cancer Risk Assessment

Benzo(k)Fluoranthene Sediment PAH Cancer Risk Assessment

Benzanthracene, 1,2- Sediment PAH Cancer Risk Assessment

Chrysene Sediment PAH Cancer Risk Assessment

Dibenzanthracene, 1,2,5,6- Sediment PAH Cancer Risk Assessment

Dibenzo(a,h)Anthracene Sediment PAH Cancer Risk Assessment

Fluoranthene Sediment PAH Cancer Risk Assessment

Fluorene Sediment PAH Cancer Risk Assessment

Indeno(1,2,3-cd)Pyrene Sediment PAH Cancer Risk Assessment

Phenanthrene Sediment PAH Cancer Risk Assessment

Pyrene Sediment PAH Cancer Risk Assessment

Coronene Sediment PAH Cancer Risk Assessment

Methylphenanthrene, 1- Sediment PAH Cancer Risk Assessment

Perylene Sediment PAH Cancer Risk Assessment

Petroleum Hydrocarbons, Total Sediment/Water Complex Mixture

Arsenic Sediment/Water Maximum value exceeds Screen

Bis(2-Ethylhexyl)Phthalate Water Maximum value exceeds Screen

Boron Water Average value exceeds Screen

Cadmium Water Maximum value equals Screen

Thallium Water Maximum value exceeds Screen

Lead Water Maximum value exceeds Screen

Table 4. Cancer Risk from Swimming at Barton Creek Pool Associated with exposure to Polycyclic Aromatic Hydrocarbons (PAHs) in sediment from Barton Springs Pool. Benzo(a)pyrene equivalent concentrations based on the average seen in the pool over the last eight (8) years.

Parameter Description Lower Parameter Value Median Parameter Value Upper Parameter Value Parameter Units

Quantity of water ingested per hour while swimming (milliliters per hour) 50.0 50.0 50.0 ml/hr

Average # hours person swims per day (hr/day) 3.0 3.0 3.0 hr/day

Quantity of sediment suspended in pool water (mg/l) 0.40 1.14 4.95 mg. Sed/l

Conversion factor: ml -> l 0.001 0.001 0.001 l/ml

Quantity of sediment ingested per visit to pool (mg) 0.060 0.171 0.743 mg Sed/day

Concentration of BaP TEQ in sediment (ppb) 1,460 1,460 1,460 ug BaP/kg Sed

Conversion factor: mg Sed -> kg Sed 0.000001 0.000001 0.000001 kg Sed/mg Sed

Quantity of BaP TEQ ingested per visit to pool 0.000088 0.000250 0.001084 ug BAP/day

Conversion factor: ug BaP -> mg BaP 0.001 0.001 0.001 mg BaP/ug BaP

Quantity of BaP TEQ ingested per visit to pool 8.758E-08 2.496E-07 1.084E-06 mg BaP/day

Percent of ingested BaP TEQ absorbed by body 100% 100% 100% Percent

Slope factor for BaP 7.3 7.3 7.3 per mg BaP/kg BW/day

Body Weight 70.0 70.0 70.0 kg BW

Ca risk from daily exposure for 70 years 9.133E-09 2.603E-08 1.130E-07 Ca risk

Number of days per week exposed 7 7 7 days exp/week

Number of weeks per year exposed 52 52 52 weeks exp/year

Number of years exposed 70 70 70 years exp

Ca risk from limited exposure specified above 9.133E-09 2.603E-08 1.130E-07 Ca Risk

Odds of getting Ca from exposure: 1 in 109,489,43 38,417,34 8,847,63 Ca Odds

Table 5. TCEQ PCLs for Total Petroleum Hydrocarbon (TPH) Fractions

Carbon Chain Length Water (µg/L) Sediment (mg/kg)

Aliphatics

C6 1,500 44,100

C6-C8 1,500 44,100

C8-C10 2,400 73,500

C10-C12 2,400 15,309

C12-C16 2,400 15,309

C16-C21 48,900 306,182

Aromatics

C7-C8 2,400 73,500

C8-C10 1,000 29,400

C10-C12 1,000 6,124

C12-C16 1,000 6,124

C16-C21 700 3,711

C21-C35 700 3,711

TCEQ - Texas Commission on Environmental Quality
PCLs - Protective Contaminant Levels
µg/L - micrograms per liter
mg/kg - milligrams per kilogram

FIGURES

Figure 1. Barton Springs Pool

Figure 2. Average Concentrations of Benzo(a)Pyrene Equivalents in Barton Springs Pool Sediment by Sampling Date

PREPARERS OF THE REPORT

John F. Villanacci, Ph.D., EMT
Director
Environmental Epidemiology and Toxicology Division

Richard A. Beauchamp, M.D.
Senior Medical Toxicologist
Environmental Epidemiology and Toxicology Division

ATSDR REGIONAL REPRESENTATIVE

Karl V. Markiewicz, Ph.D.
Regional Representative
ATSDR - Region 6

ATSDR TECHNICAL PROJECT OFFICER

Robert B. Knowles, M.S., REHS
Environmental Health Scientist
Division of Health Assessment and Consultation
Superfund Site Assessment Branch
Sate Programs Section

CERTIFICATION

This public health consultation was prepared by the Texas Department of Health (TDH) under a Cooperative Agreement with the Agency for Toxic Substances and Disease Registry (ATSDR). It is in accordance with approved methodology and procedures existing at the time the health consultation was initiated.

Robert B. Knowles
Technical Project Officer, SPS, SSAB, DHAC, ATSDR

The Division of Health Assessment and Consultation, ATSDR, has reviewed this health consultation and concurs with its findings.

Sven E. Rodenbeck
for Roberta Erlwein
Chief, State Programs Section, SSAB, DHAC, ATSDR

APPENDIX A: LIST OF ANALYTES

Analyte

1 Acenaphthene
2 Acenaphthylene
3 Acetochlor
4 Acetone
5 Acetophenone
6 Acid Volatile Sulfide
7 Acifluorfen
8 Acrolein
9 Acrylonitrile
10 Alachlor
11 Aldicarb
12 Aldicarb Sulfone
13 Aldicarb Sulfoxide
14 Aldrin
15 Allyl Chloride
16 Aluminum
17 Ametryn
18 Aminobiphenyl, 4-
19 Aniline
20 Anthracene
21 Antimony
22 Aroclor 1016
23 Aroclor 1221
24 Aroclor 1232
25 Aroclor 1242
26 Aroclor 1248
27 Aroclor 1254
28 Aroclor 1260
29 Aroclor 1260-1
30 Aroclor 1260-2
31 Aroclor 1260-3
32 Aroclor 1260-4
33 Aroclor 1260-5
34 Arsenic
35 Atrazine
36 Azinphos-Ethyl
37 Azinphos-Methyl
38 Azobenzene
39 Barium
40 Benfluralin
41 Benzanthracene, 1,2-
42 Benzene
43 Benzidine
44 Benzo(a)Anthracene
45 Benzo(a)Pyrene
46 Benzo(b)Fluoranthene
47 Benzo(b+k)Fluoranthene
48 Benzo(e)Pyrene
49 Benzo(g,h,i)Perylene
50 Benzo(k)Fluoranthene
51 Benzoic Acid
52 Benzopyrene Isomer
53 Benzyl Alcohol
54 Beryllium
55 Biphenyl
56 Bis(2-Chloroethoxy)Methane
57 Bis(2-Chloroethyl)Ether
58 Bis(2-Chloroisopropyl)Ether
59 Bis(2-Ethylhexyl)Phthalate
60 Bismuth
61 Boron
62 Bromacil
63 Bromobenzene
64 Bromochloromethane
65 Bromodichloromethane
66 Bromoethene
67 Bromomethane
68 Bromophenyl Phenyl Ether, 4-
69 Butachlor
70 Butanone, 2-
71 Butyl Benzyl Phthalate
72 Butyl Hexadecanoate
73 Butylate
74 Butylbenzene, N-
75 Butylbenzene, Sec-
76 Butylbenzene, Tert-
77 C1-Chrysenes
78 C1-Dibenzothiophenes
79 C1-Fluoranthenes And Pyrenes
80 C1-Fluorenes
81 C1-Naphthalenes
82 C1-Phenanthrenes
83 C2-Chrysenes
84 C2-Dibenzothiophenes
85 C2-Fluorenes
86 C2-Naphthalenes
87 C2-Phenanthrenes
88 C3-Chrysenes
89 C3-Dibenzothiophenes
90 C3-Fluorenes
91 C3-Naphthalenes
92 C3-Phenanthrenes
93 C4-Chrysenes
94 C4-Naphthalenes
95 C4-Phenanthrenes
96 Cadmium
97 Carbaryl
98 Carbazole
99 Carbofuran
100 Carbon Disulfide
101 Carbon Tetrachloride
102 Carbophenothion
103 Carboxin
104 Cerium
105 Chloramben
106 Chlordane, Alpha-
107 Chlordane, Gamma-
108 Chlordane, Technical
109 Chlordane, Total
110 Chloro-3-Methylphenol, 4-

111 Chloroaniline, 4-
112 Chlorobenzene
113 Chloroethane
114 Chloroethyl Vinyl Ether, 2-
115 Chloromethane
116 Chloronaphthalene, 1+2-
117 Chloronaphthalene, 2-
118 Chlorophenol, 2-
119 Chlorophenyl Phenyl Ether, 4-
120 Chlorotoluene, 2-
121 Chlorotoluene, 4-
122 Chlorpyrifos
123 Chromium
124 Chrysene
125 Cobalt
126 Copper
127 Coronene
128 Coumaphos
129 Cresol, M+P-
130 Cresol, O-
131 Cresol, P-
132 Cresols, Total
133 Cumene
134 Cyanazine
135 Cycloate
136 Dalapon
137 DCPA
138 DDD
139 DDD, 2,4'-
140 DDD, 4,4'-
141 DDE
142 DDE, 2,4'-
143 DDE, 4,4'-
144 DDT
145 DDT, 2,4'-
146 DDT, 4,4'-
147 De-Ethyl Atrazine
148 De-Ethyl Ether
149 Demeton
150 Demeton, O+S-
151 Demeton-O
152 Demeton-S
153 Desulfinylfipronil
154 Diazinon
155 Dibenzanthracene, 1,2,5,6-
156 Dibenzo(a,h)Anthracene
157 Dibenzo(a,j)Aciridine
158 Dibenzofuran
159 Dibenzothiophene
160 Dibromo-3-Chloropropane, 1,2-
161 Dibromochloromethane
162 Dibromochloropropane
163 Dibromoethane, 1,2-
164 Dibromoethylene, 1,2-
165 Dibromomethane
166 Dicamba
167 Dichloro-2-Butene, 1,4-
168 Dichlorobenzene, 1,2-
169 Dichlorobenzene, 1,3-
170 Dichlorobenzene, 1,4-
171 Dichlorobenzidine, 3,3'-
172 Dichlorobenzoic Acid, 3,5-
173 Dichlorobromoethane
174 Dichlorodifluoromethane
175 Dichloroethane, 1,1-
176 Dichloroethane, 1,2-
177 Dichloroethene, 1,1-
178 Dichloroethene, Cis-1,2-
179 Dichloroethene, Trans-1,2-
180 Dichlorophenol, 2,4-
181 Dichlorophenol, 2,6-
182 Dichlorophenoxy)Butyric Acid, 4-(2,4-
183 Dichlorophenoxy)Propionic Acid, 2-(2,4-
184 Dichlorophenoxyacetic Acid, 2,4-
185 Dichloropropane, 1,2-
186 Dichloropropane, 1,3-
187 Dichloropropane, 2,2-
188 Dichloropropene, 1,1-
189 Dichloropropene, 1,3-
190 Dichloropropene, Cis-1,3-
191 Dichloropropene, Trans-1,3-
192 Dichlorvos
193 Dieldrin
194 Diethyl Phthalate
195 Diethylaniline, 2,6-
196 Di-Isopropyl Ether
197 Dimethoate
198 Dimethyl Phthalate
199 Dimethylaminoazobenzene, P-
200 Dimethylbenzo(a)Anthracene, 7,12-
201 Dimethylnaphthalene, 2,6-
202 Dimethylphenethylamine, A,A-
203 Dimethylphenol, 2,4-
204 Di-N-Butyl Phthalate
205 Dinitro-2-Methylphenol, 4,6-
206 Dinitrophenol, 2,4-
207 Dinitrotoluene, 2,4-
208 Dinitrotoluene, 2,6-
209 Di-N-Octyl Phthalate
210 Dinoseb
211 Dioxane, 1,4-
212 Diphenamid
213 Diphenylhydrazine, 1,2-
214 Disulfoton
215 Disyston
216 Endosulfan
217 Endosulfan I
218 Endosulfan II
219 Endosulfan Sulfate
220 Endrin

221 Endrin Aldehyde
222 Endrin Ketone
223 EPN
224 Ethalfluralin
225 Ethion
226 Ethoprophos
227 Ethoxy-2-Methylpropane, 2-
228 Ethyl Dipropylthiocarbamate, S-
229 Ethyl Methacrylate
230 Ethylbenzene
231 Ethylmethane Sulfonate
232 Fenchlorphos
233 Fensulfothion
234 Fenthion
235 Fipronil
236 Fipronil Degradate RPA105048
237 Fipronil Sulfide
238 Fipronil Sulfone
239 Fluoranthene
240 Fluorene
241 Fluorene, 9h-
242 Fluoride
243 Fonofos
244 Gallium
245 Hentriacosane
246 Heptachlor
247 Heptachlor Epoxide
248 Hexachlorobenzene
249 Hexachlorobutadiene
250 Hexachlorocyclohexane, Alpha-
251 Hexachlorocyclohexane, Beta-
252 Hexachlorocyclohexane, Delta-
253 Hexachlorocyclohexane, Gamma-
254 Hexachlorocyclopentadiene
255 Hexachloroethane
256 Hexachlorophene
257 Hexanone, 2-
258 Hexazinone
259 Hydrocarbon (Oil), Unknown
260 Hydroxy Carbofuran, 3-
261 Hydroxydicamba, 5-
262 Indeno(1,2,3-cd)Pyrene
263 Iodomethane
264 Iron
265 Isodurene
266 Isophorone
267 Isopropyl Toluene, P-
268 Lanthanum
269 Lead
270 Linuron
271 Lithium
272 Malathion
273 Manganese
274 Mecoprop
275 Mercury
276 Merphos
277 Methacrylonitrile
278 Methomyl
279 Methoxy-2-Methylbutane, 2-
280 Methoxy-2-Methylpropane, 2-
281 Methoxychlor
282 Methyl 2-Propenoic Acid Ethyl Ester, 2-
283 Methyl Isobutyl Ketone
284 Methyl Methacrylate
285 Methyl Methane Sulfonate
286 Methyl Parathion
287 Methyl T-Butyl Ether
288 Methyl Trithion
289 Methyl-2-Chlorobenzene, 1-
290 Methyl-2-Ethylbenzene, 1-
291 Methyl-2-Pentanone, 4-
292 Methyl-4-Chlorobenzene, 1-
293 Methyl-4-Chlorophenoxyacetic Acid, 2-
294 Methyl-4-Isopropylbenzene, 1-
295 Methylcholanthrene, 3-
296 Methylene Chloride
297 Methylnaphthalene, 1-
298 Methylnaphthalene, 2-
299 Methylphenanthrene, 1-
300 Methylpyridine, 2-
301 Metolachlor
302 Metribuzin
303 Mevinphos
304 Mirex
305 Molinate
306 Molybdenum
307 Monocrotophos
308 Naled
309 Naphthalene
310 Naphthylamine, 1-
311 Naphthylamine, 2-
312 Napropamide
313 Nickel
314 Niobium
315 Nitroaniline, 2-
316 Nitroaniline, 3-
317 Nitroaniline, 4-
318 Nitrobenzene
319 Nitrodibutylamine, N-
320 Nitrophenol, 2-
321 Nitrophenol, 4-
322 Nitrosodiethylamine, N-
323 Nitrosodimethylamine, N-
324 Nitrosodi-N-Butylamine, N-
325 Nitrosodi-N-Propylamine, N-
326 Nitrosodiphenylamine, N-
327 Nitrosopiperidine, N-
328 Nonachlor, Cis-
329 Nonachlor, Trans-
330 Nonacosane

331 Oxamyl
332 Oxychlordane
333 Parathion
334 Pebulate
335 Pendimethalin
336 Pentachlorobenzene
337 Pentachloronitrobenzene
338 Pentachlorophenol
339 Permethrin
340 Permethrin, Cis-
341 Perthane
342 Perylene
343 Petroleum Hydrocarbons, C06-C12
344 Petroleum Hydrocarbons, C06-C35
345 Petroleum Hydrocarbons, C12-C28
346 Petroleum Hydrocarbons, C28-C35
347 Petroleum Hydrocarbons, Total
348 Petroleum Hydrocarbons, Total Diesel
349 Petroleum Hydrocarbons, Total Motor Oil
350 Phenacetin
351 Phenanthrene
352 Phenol
353 Phentermine
354 Phorate
355 Picloram
356 Picoline, 2-
357 Polychlorinated Biphenyl
358 Polychlorinated Naphthalenes
359 Polycyclic Aromatic Hydrocarbons
360 Prehnitene
361 Profenofos
362 Prometon
363 Prometryn
364 Pronamide
365 Propachlor
366 Propanil
367 Propargite
368 Propazine
369 Propham
370 Propylbenzene, N-
371 Prothiofos
372 Pyrene
373 Pyridine
374 Reactive Sulfide
375 Scandium
376 Selenium
377 Silica
378 Silver
379 Simazine
380 Simetryne
381 Strontium
382 Styrene
383 Sulfotep
384 Sulprofos
385 Tantalum
386 Tebuthiuron
387 Terbacil
388 Terbufos
389 Terbuthylazine
390 Terbutryn
391 Tetrachlorobenzene, 1,2,4,5-
392 Tetrachloroethane, 1,1,1,2-
393 Tetrachloroethane, 1,1,2,2-
394 Tetrachloroethene, 1,1,2,2-
395 Tetrachloroethylene
396 Tetrachlorophenol, 2,3,4,6-
397 Tetrachlorvinphos
398 Tetraethylpyrophosphate
399 Tetrahydrofuran
400 Thallium
401 Thiobencarb
402 Thorium
403 Titanium
404 Toluene
405 Toxaphene
406 Triallate
407 Triazines, Total
408 Tribromomethane
409 Tributyl Phosphorotrithioate, S,S,S-
410 Trichloro-1, 2,2,2-
411 Trichloro-1,2,2-Trifluoroethane, 1,1,2-
412 Trichlorobenzene, 1,2,3-
413 Trichlorobenzene, 1,2,4-
414 Trichloroethane, 1,1,1-
415 Trichloroethane, 1,1,2-
416 Trichloroethene, 1,1,2-
417 Trichloroethylene
418 Trichlorofluoromethane
419 Trichloromethane
420 Trichloronate
421 Trichlorophenol, 2,4,5-
422 Trichlorophenol, 2,4,6-
423 Trichlorophenoxyacetic Acid, 2,4,5-
424 Trichlorophenoxypropionic Acid, 2,4,5-
425 Trichloropropane, 1,2,3-
426 Trifluralin
427 Trifluraline
428 Trimethylbenzene, 1,2,3-
429 Trimethylbenzene, 1,2,4-
430 Trimethylbenzene, 1,3,5-
431 Trimethylnapthalene, 2,3,5-
432 Uranium
433 Vanadium
434 Vernolate
435 Vinyl Acetate
436 Vinyl Chloride
437 Xylene, M+P-
438 Xylene, O-
439 Xylenes, Total
440 Yttrium
441 Zinc

APPENDIX B: PAH TOXICITY EQUIVALENCY FACTORS (TEF)

PAH Name	TEF
Acenaphthene	0.001
Acenaphthylene	0.001
Anthracene	0.01
Benzanthracene, 1,2-	0.1
Benzo(a)Anthracene	0.1
Benzo(a)Pyrene	1
Benzo(b)Fluoranthene	0.1
Benzo(b+k)Fluoranthene	1
Benzo(e)Pyrene	1.001
Benzo(g,h,i)Perylene	0.01
Benzo(k)Fluoranthene	0.01
Chrysene	0.001
Coronene	0
Dibenzanthracene, 1,2,5,6-	1
Dibenzo(a,h)Anthracene	1
Dimethylbenzo(a)Anthracene, 7, 12-	0
Dimethylnaphthalene, 2, 6-	0
Fluoranthene	0.001
Fluorene	0.001
Indeno(1,2,3-cd)Pyrene	0.1
Methylcholanthrene, 3-	0
Methylnaphthalene, 1-	0
Methylnaphthalene, 2-	0
MethylPhananthrene, 1-	0.001
Naphthalene	0
Perylene	0
Phenanthrene	0.001
Pyrene	0.001
Trimethylnaphthalene, 2,3,5-	0

APPENDIX C: CALCULATIONS OF BENZO(A)PYRENE EQUIVALENTS

Click here to view Appendix C in PDF format (2,195KB, PDF)

APPENDIX D: ESTIMATED EXCESS LIFETIME CANCER RISK ESTIMATES ASSOCIATED WITH COMMON EVERYDAY EXPOSURES TO PAHS ARE PRESENTED

Lifetime Cancer Risk from Food Ingestion Exposure (Food Containing Average BaP Levels Seen in Average American Diet)
Parameter Description		Lower Param Value	Median Param Value	Upper Param Value	Param Units
Total quantity of food ingested per day		1.00	1.00	1.00	kg food/day
Average concentration of BaP TEQ in food		0.192	0.600	1.920	ug BaP/kg food
Quantity BaP TEQ ingested per day (ug)		0.19	0.60	1.92	ug BaP/day
Percent of inhaled BaP TEQ absorbed by body		100%	100%	100%	Percent
Quantity BaP TEQ absorbed per day (ug)		0.192	0.600	1.920	ug BaP/day
Conversion factor: ug BaP -> mg BaP		0.001	0.001	0.001	mg BaP/ug BaP
Quantity BaP TEQ ingested per day (mg)		1.920E-04	6.000E-04	1.920E-03	mg BaP/day
Slope factor for BaP		7.3	7.3	7.3	per mg BaP/kg BW/day
Body Weight		70.0	70.0	70.0	kg BW
Ca risk from daily exposure for 70 years		2.002E-05	6.257E-05	2.002E-04	Ca risk
Number of days per week exposed		7	7	7	days exp/week
Number of weeks per year exposed		52	52	52	weeks exp/year
Number of years exposed		70	70	70	years exp
Ca risk from limited exposure specified above:		2.002E-05	6.257E-05	2.002E-04	Ca Risk
Odds of getting Ca from above exposure:	1 in	49,943	15,982	4,994	Ca Odds

Lifetime Cancer Risk from Drinking Water Exposure (Water Containing Average BaP Levels Seen in Public Water Supplies)
Parameter Description		Lower Param Value	Median Param Value	Upper Param Value	Param Units
Total quantity of water ingested per day		2.00	2.00	2.00	L water/day
Average concentration of BaP TEQ in water		0.405	1.620	6.480	ng BaP/L water
Quantity BaP TEQ ingested per day (ng)		0.810	3.240	12.960	ng BaP/day
Conversion factor: ng BaP -> ug BaP		0.001	0.001	0.001	ug BaP/ng BaP
Quantity BaP TEQ ingested per day (ug)		0.00081	0.00324	0.01296	ug BaP/day
Percent of ingested BaP TEQ abosorbed by body		100%	100%	100%	Percent
Quantity BaP TEQabsorbed per day (ug)		0.00081	0.00324	0.01296	ug BaP/day
Conversion factor: ug BaP -> mg BaP		0.001	0.001	0.001	mg BaP/ug BaP
Quantity BaP TEQ absorbed per day (mg)		8.100E-07	3.240E-06	1.296E-05	mg BaP/day
Slope factor for BaP		7.3	7.3	7.3	per mg BaP/kg BW/day
Body Weight		70.0	70.0	70.0	kg BW
Ca risk from daily exposure for 70 years		8.447E-08	3.379E-07	1.352E-06	Ca risk
Number of days per week exposed		7	7	7	days exp/week
Number of weeks per year exposed		52	52	52	weeks exp/year
Number of years exposed		70	70	70	years exp
Ca risk from limited exposure specified above:		8.447E-08	3.379E-07	1.352E-06	Ca Risk
Odds of getting Ca from above exposure:	1 in	11,838,322	2,959,581	739,895	Ca Odds

Childhood Ca Risk from Skin Contact with Sediments from Barton Creek Pool
Parameter Description		Lower Param Value	Median Param Value	Upper Param Value	Param Units
Total surface area of body exposed per day (cm2)		4,769.0	4,769.0	4,769.0	cm2
Child Soil-to-Skin Adherence FActor (0-6 years)		0.30	1.30	3.30	mg Sed/cm2
Concentration of BaP TEQ in Sediment (ug BaP/kg Sed)		1,460	1,460	1,460	ug BaP/kg Sed
Conversion factor: ug BaP -> mg BaP		0.001	0.001	0.001	mg BaP/ug BaP
Conversion factor: mg Sed -> kg Sed		1.00E-06	1.00E-06	1.00E-06	kg Sed/mg Sed
Percent of adhering BaP absorbed by body in 24 hrs		13%	13%	13%	Percent
Hours out of day in which sediment in contact with skin		1.0	1.0	1.0	hours/day
Quantity of BaP TEQ absorbed per day (mg)		1.1312E-05	4.9018E-05	1.2443E-04	mg BaP/day
Slope factor for BaP		7.3	7.3	7.3	per mg BaP/kg BW/day
Body Weight		15.0	15.0	15.0	kg BW
Ca risk from daily exposure for 70 years		5.505E-06	2.386E-05	6.056E-05	Ca risk
Number of days per week exposed		7	7	7	days exp/week
Number of weeks per year exposed		14	14	14	weeks exp/year
Number of years exposed		10	10	10	years exp/lifetime
Ca risk from limited exposure specified above		2,114E-07	9.175E-07	2.329E-06	Ca Risk
Odds of getting Ca from exposure:	1 in	4,722,907	1,089,902	429,355	Ca Odds

Lifetime Ca Risk for Inhalation Exposure (Indoor Air Containing Average Levels of BaP TEQ)
Parameter Description		Lower Param Value	Median Param Value	Upper Param Value	Param Units
Inhalation rate for an adult		20.0	20.0	20.0	m3/day
Concentration of BaP TEQ in air (ng/m3)		0.313	1.250	5.000	ng BaP/m3
Quantity BaP TEQ inhaled per day (ng )		6.250	25.000	100.000	ng BaP/day
Conversion factor: ng BaP -> ug BaP		0.001	0.001	0.001	ug BaP/ngBaP
Quantity BaP inhaled per day (ug)		0.0063	0.0250	0.1000	ug BaP/day
Percent of inhaled BaP absorbed by body		100 %	100%	100%	Percent
Quantity BaP abosorbed per day (ug)		0.006	0.025	0.100	ug BaP/day
Conversion factor: ug BaP -> mg BaP		0.001	0.001	0.001	mg BaP/ug BaP
Quantity BaP absorbed per day (mg)		6.250E-06	2.500E-05	1.000E-04	mg BaP/day
Slope factor for BaP		7.3	7.3	7.3	per mg BaP/kg BW/day
Body Weight		70.0	70.0	70.0	kg/BW
Ca risk from daily exposure for 70 years		6.518E-07	2.607E-06	1.043E-05	Ca risk
Number of days per week exposed		7	7	7	days exp/week
Number of weeks per year exposed		52	52	52	weeks exp/year
Number of years exposed		70	70	70	years exp
Ca risk from limited exposure specified above:		6.518E-07	2.607E-06	1.043E-05	Ca Risk
Odds of getting Ca from above exposure:	1 in	1,534,247	383,562	95,890	Ca Odds

Table of Contents

Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345
Contact CDC: 800-232-4636 / TTY: 888-232-6348

Department of Health and Human Services

Analyte	Average¹	Min - Max^*	Frequency of Detection	Screening Value	Basis for Screening
Acenaphthene	0.42	ND⁹ - 4.5^*	2/45	3,000	RMEGc²
Acenaphthylene	0.33	ND - 0.97^*	2/45	-	PAH Assessment³
Aluminum	29,873	2,380 - 89,000	23/23	100,000	EMEGc⁴
Anthracene	0.32	ND - 0.96^*	9/45	20,000	PAH Assessment
Antimony	1.25	1.08 - 1.60	6/6	20	RMEGc
Aroclor 1260	0.05	ND - 0.25	1/11	1.0	RMEGc (Aroclor 1254)
Arsenic	8.24	ND - 23.0	43/48	20	EMEGc
Barium	238.5	210 - 285	6/6	4,000	RMEGc
Benzanthracene, 1,2-	0.50	0.43 - 0.62	3/3	-	PAH Assessment
Benzo(a)Anthracene	0.68	ND - 5.09	18/42	-	PAH Assessment
Benzo(a)pyrene	0.84	ND - 6.50	21/45	-	PAH Assessment
Benzo(b)Fluoranthene	1.02	ND - 8.70	23/45	-	PAH Assessment
Benzo(e)pyrene	0.95	0.41 - 1.39	5/5	-	PAH Assessment
Benzo(g,h,i)Perylene	0.64	ND - 4.55	18/43	-	PAH Assessment
Benzo(k)Fluoranthene	0.70	ND - 6.63	21/45	-	PAH Assessment
Benzoic Acid	1.69	ND - 4.79^*	1/32	200,000	RMEGc
Beryllium	2.48	2.09 - 3.10	6/6	100	RMEGc
Bis(2-Ethylhexyl)Phthalate	0.66	ND - 3.00	17/34	50	CREG⁵
Bismuth	0.43	0.28 - 0.54	6/6	<5.0	Background⁶
Cadmium	0.82	ND - 3.39^*	33/49	10	EMEGc
Cerium	75.2	64.0 - 100.0	6/6	36 - 101	Background
Chloronaphthalene, 1+2-	0.84	ND - 2.80	1/33	4,000	RMEGc
Chromium	20.6	ND - 83.0	43/44	200	RMEGc
Chrysene	0.88	ND - 6.92	24/45	-	PAH Assessment
Cobalt	12.7	11.0 - 16.0	6/6	500	EMEGc
Copper	99.7	3.8 - 1,200	48/48	2,000	EMEGc
Coronene	0.18	0.17 - 0.20	2/2	-	PAH Assessment
Cresol, M+P-	0.62	ND - 3.11	4/31	3,000	RMEGc
Cresols, Total	0.38	ND - 1.80	1/22	3,000	RMEGc
DDE, 4,4'-	0.01	ND - 0.25^*	1/32	2.0	CREG
Dibenzanthracene, 1,2,5,6-	0.37	0.23 - 0.62	3/3	-	PAH Assessment
Dibenzo(a,h)Anthracene	0.36	ND - 0.96^*	5/42	-	PAH Assessment
Dieldrin	0.01	ND - 0.25^*	1/32	0.04	CREG
Dimethylnaphthalene, 2,6-	0.08	ND - 0.12	2/3	4,900	PCL
Dimethylphenyethylamine, A,A'-	1.08	ND - 1.52	1/7	-	-
Di-N-Butyl Phthalate	0.51	ND - 2.77	2/35	5,000	RMEGc
Di-N-Octyl Phthalate	0.44	ND - 1.08	1/35	20,000	EMEGc
Fluoranthene	1.28	ND - 13.3	26/45	-	PAH Assessment
Fluorene	0.35	0.00005 - 0.97^*	2/2	-	PAH Assessment
Gallium	17.7	14.0 - 21.3	6/6	<5 - 70	Background
Hentriacosane	1.9	1.90	1/1	-	-
Indeno(1,2,3-cd)Pyrene	0.67	ND - 4.51	19/43	-	PAH Assessment
Iron	16,495	1,170 - 43,000	24/24	1,000 - 100,000	Background
Lanthanum	39.3	32.0 - 52.0	6/6	30 - 200	Background
Lead	14.6	1.79 - 40.0	50/50	400	EPA⁷
Lithium	58.2	50.5 - 69.5	6/6	5 - 130	Background
Manganese	944	743 - 1,200	6/6	3,000	RMEGc
Mercury	0.07	ND - 0.28	17/45	<0.01 - 4.6	Background
Methylphenanthrene, 1-	0.01	ND - 0.02	2/3	-	PAH Assessment
Molybdenum	1.7	1.50 - 2.06	6/6	300	RMEGc
Naphthalene	0.33	ND - 0.97^*	2/45	1,000	RMEGc
Nickel	17.4	1.67 - 44.0	41/41	1,000	RMEGc
Niobium	21.6	17.0 - 32.0	6/6	<10 - 100	Background
Nonacosane	4.8	4.80	1/1	-	-
Perylene	0.34	0.29 - 0.42	3/3	-	PAH Assessment
Petroleum Hydrocarbons, C6-C12	40.1	19.0 - 69.0	3/3	-	PCL (Table-Text)¹⁰
Petroleum Hydrocarbons, C6-C35	64.8	ND - 70.0	2/3	-	PCL (Table-Text)
Petroleum Hydrocarbons, C12-C28	53.5	ND - 70.0	2/3	-	PCL (Table-Text)
Petroleum Hydrocarbons, Total	177.0	ND - 1,100	16/18	-	PCL (Table-Text)
Phenanthrene	0.55	ND - 3.61	19/45	-	PAH Assessment
Polychlorinated Biphenyl	0.07	ND - 0.50^*	1/30	0.4	CREG
Pyrene	1.19	ND - 12.7	25/45	-	PAH Assessment
Scandium	12.4	9.8 - 15.0	6/6	5 - 50	Background
Silver	1.95	ND - 6.80^*	18/38	300	RMEGc
Strontium	332.5	120 - 796	6/6	30,000	RMEGc
Tantalum	1.58	1.10 - 2.08	6/6	<1.0	Background⁸
Thorium	12.7	10.6 - 17.0	6/6	1.4 - 18.5	Background⁸
Titanium	2,987	1,650 - 5,100	9/9	-	Background
Uranium	2.80	2.50 - 3.12	6/6	0.68 - 7.9	Background
Vanadium	115.8	99.0 - 136.0	6/6	200	EMEGc
Yttrium	26.4	21.5 - 38.0	6/6	10 - 150	Background
Zinc	44.4	ND - 130.0	47/48	20,000	EMEGc

Analyte	Media	Basis for Selection
Acenaphthylene	Sediment	PAH Cancer Risk Assessment
Anthracene	Sediment	PAH Cancer Risk Assessment
Benzo(a)anthracene	Sediment	PAH Cancer Risk Assessment
Benzo(a)pyrene	Sediment	PAH Cancer Risk Assessment
Benzo(b)Fluoranthene	Sediment	PAH Cancer Risk Assessment
Benzo(e)pyrene	Sediment	PAH Cancer Risk Assessment
Benzo(g,h,i)Perylene	Sediment	PAH Cancer Risk Assessment
Benzo(k)Fluoranthene	Sediment	PAH Cancer Risk Assessment
Benzanthracene, 1,2-	Sediment	PAH Cancer Risk Assessment
Chrysene	Sediment	PAH Cancer Risk Assessment
Dibenzanthracene, 1,2,5,6-	Sediment	PAH Cancer Risk Assessment
Dibenzo(a,h)Anthracene	Sediment	PAH Cancer Risk Assessment
Fluoranthene	Sediment	PAH Cancer Risk Assessment
Fluorene	Sediment	PAH Cancer Risk Assessment
Indeno(1,2,3-cd)Pyrene	Sediment	PAH Cancer Risk Assessment
Phenanthrene	Sediment	PAH Cancer Risk Assessment
Pyrene	Sediment	PAH Cancer Risk Assessment
Coronene	Sediment	PAH Cancer Risk Assessment
Methylphenanthrene, 1-	Sediment	PAH Cancer Risk Assessment
Perylene	Sediment	PAH Cancer Risk Assessment
Petroleum Hydrocarbons, Total	Sediment/Water	Complex Mixture
Arsenic	Sediment/Water	Maximum value exceeds Screen
Bis(2-Ethylhexyl)Phthalate	Water	Maximum value exceeds Screen
Boron	Water	Average value exceeds Screen
Cadmium	Water	Maximum value equals Screen
Thallium	Water	Maximum value exceeds Screen
Lead	Water	Maximum value exceeds Screen

Parameter Description		Lower Parameter Value	Median Parameter Value	Upper Parameter Value	Parameter Units
Quantity of water ingested per hour while swimming (milliliters per hour)		50.0	50.0	50.0	ml/hr
Average # hours person swims per day (hr/day)		3.0	3.0	3.0	hr/day
Quantity of sediment suspended in pool water (mg/l)		0.40	1.14	4.95	mg. Sed/l
Conversion factor: ml -> l		0.001	0.001	0.001	l/ml
Quantity of sediment ingested per visit to pool (mg)		0.060	0.171	0.743	mg Sed/day
Concentration of BaP TEQ in sediment (ppb)		1,460	1,460	1,460	ug BaP/kg Sed
Conversion factor: mg Sed -> kg Sed		0.000001	0.000001	0.000001	kg Sed/mg Sed
Quantity of BaP TEQ ingested per visit to pool		0.000088	0.000250	0.001084	ug BAP/day
Conversion factor: ug BaP -> mg BaP		0.001	0.001	0.001	mg BaP/ug BaP
Quantity of BaP TEQ ingested per visit to pool		8.758E-08	2.496E-07	1.084E-06	mg BaP/day
Percent of ingested BaP TEQ absorbed by body		100%	100%	100%	Percent
Slope factor for BaP		7.3	7.3	7.3	per mg BaP/kg BW/day
Body Weight		70.0	70.0	70.0	kg BW
Ca risk from daily exposure for 70 years		9.133E-09	2.603E-08	1.130E-07	Ca risk
Number of days per week exposed		7	7	7	days exp/week
Number of weeks per year exposed		52	52	52	weeks exp/year
Number of years exposed		70	70	70	years exp
Ca risk from limited exposure specified above		9.133E-09	2.603E-08	1.130E-07	Ca Risk
Odds of getting Ca from exposure:	1 in	109,489,43	38,417,34	8,847,63	Ca Odds

Carbon Chain Length	Water (µg/L)	Sediment (mg/kg)
Aliphatics
C6	1,500	44,100
C6-C8	1,500	44,100
C8-C10	2,400	73,500
C10-C12	2,400	15,309
C12-C16	2,400	15,309
C16-C21	48,900	306,182
Aromatics
C7-C8	2,400	73,500
C8-C10	1,000	29,400
C10-C12	1,000	6,124
C12-C16	1,000	6,124
C16-C21	700	3,711
C21-C35	700	3,711