HEALTH CONSULTATION
CHILDS PROPERTY
ALORTON, ST. CLAIR COUNTY, ILLINOIS
| Compound | X001 Back-ground | X101 | X102 | X103 | X104 | X105 | X106 | X107 | X108 | Comparison Value | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Soil ppm | Source | ||||||||||
| SEMIVOLATILES | |||||||||||
| Benzo(a)Anthracene | -- | 0.490 | 0.540 | 0.065 J | 0.110 J | 0.041 J | 1.700 | 0.120 J | 5.500 | NONE | NONE |
| Chrysene | -- | 0.650 | 680 | 97 J | 0.120 J | 0.061 J | 1.800 | 0.130 J | 5.400 | NONE | NONE |
| Benzo(b)Fluoranthene | -- | 0.810 | 0.750 | 0.180 J | 0.190 J | 0.120 J | 2.100 | 0.170 J | 7.500 | NONE | NONE |
| Benzo(k)Fluoranthene | -- | 0.490 | 0.540 | -- | -- | -- | 1.300 | 0.091 J | 2.300 | NONE | NONE |
| Benzo(a)Pyrene | -- | 0.620 | 0.620 | 0.068 J | 0.093 J | 0.050 J | 1.500 | 0.130 J | 5.400 | 0.1 | CREG |
| Indeno(1,2,3-cd)Pyrene | -- | 0.530 | 0.540 | 0.058 J | 0.058 J | 0.044 J | 1.100 | 0.120 J | 4.500 | NONE | NONE |
| Dibenz(a,h)Anthracene | -- | 0.160 J | 0.160 J | 0.024 J | -- | -- | 0.360 J | 0.039 J | 2.000 | NONE | NONE |
| INORGANICS | |||||||||||
| Zinc | 109 | 418 | 394 | -- | 51,800 | 130 | 1,240 | 366 | 715 | 600/20,000/200,000* | I EMEG |
*Comparison values are for pica child/child/adult.
J = estimated value; qualitatively correct but quantitatively suspect
B = analyte found in the associated blank and indicates possible blank contamination
| Compound | Relative Potency Value | Concentration Range (ppm) | Relative Potency Concentration1 | Dose for Child (mg/kg/day) | Dose for Adult (mg/kg/day) | Excess Cancer Risk2 | |
|---|---|---|---|---|---|---|---|
| For Child | For Adult | ||||||
| Benzo(a)Anthracene | 0.01 | 0.04-5.5 | 0.06 | 1.2 X 10-5 | 3.6 X 10-9 | 8.8 X 10-8 | 2.6 X 10-9 |
| Chrysene | 0.01 | 0.06-5.4 | 0.05 | 1 X 10-8 | 3 X 10-9 | 7.3 X 10-8 | 2.2 X 10-9 |
| Benzo(b)Fluoranthene | 1.0 | 0.12-7.5 | 7.5 | 1.5 X 10-6 | 4.5 X 10-7 | 1.1 X 10-5 | 3.3 X 10-6 |
| Benzo(k)Fluoranthene | 0.01 | ND-2.3 | 0.02 | 4 X 10-9 | 1.2 X 10-9 | 2.9 X 10-8 | 8.8 X 10-9 |
| Benzo(a)Pyrene | 1.0 | 0.05-5.4 | 5.4 | 1.1 X 10-6 | 3.2 X 10-7 | 8 X 10-6 | 2.4 X 10-6 |
| Indeno(1,2,3-cd)Pyrene | 0.01 | 0.04-4.5 | 0.05 | 1.2 X 10-8 | 3 X 10-7 | 8.8 X 10-8 | 2.2 X 10-9 |
| Dibenz(a,h)Anthracene | 1.0 | ND-2.0 | 2.0 | 4 X 10-7 | 1.2 X 10-8 | 2.9 X 10-6 | 8.3 X 10-6 |
| Total RP as B(a)P | 15.08 | 3 X 10-6 | 9.0 X 10-7 | 2.2 X 10-5 | 6.6 X 10-6 | ||
1 Based on highest concentration
2 The Cancer slope factor for B(a)P of 7.3 were used to determine cancer risk.
ppm = parts per million
mg/kg/day = milligrams of chemical per kilogram of body weight per day of exposure
| Ingestion Dose = | Concentration x Ingestion Dose x EF x 10-6 |
|---|---|
| Body Weight |
Child Ingestion Dose
EF = 2 days/week x 26 weeks x 10 years (365 days x 70 years) = 0.02
| Ingestion Dose = | PAH Concentration x (100 mg x 0.02 x 10-6) 10 kg | = PAH Concentration x 2 x 10-7 mg/kg/day |
|---|
Adult Ingestion Dose
EF = 2 days/week X 52 weeks X 10 years/(365 days X 70 years) = 0.04
| Ingestion Dose = | PAH Concentration x (100 mg X 0.04 X 10-6) 70 kg | = PAH Concentration x 6 X 10-8 mg/kg/day |
|---|
| Source ofContamination | Environmental TransportPathways | ExposurePathways | Possible Receptors | Time |
|---|---|---|---|---|
| Childs Property | Surface Soil | Ingestion Dermal contact | Trespassers, Future on-site workers (estimated number of possible receptors =30) | Past Present Future |
Comparison Values Used In Screening Contaminants For Further Evaluation
Environmental Media Evaluation Guides (EMEGs) are developed for chemicals based on theirtoxicity, frequency of occurrence at National Priority List (NPL) sites, and potential for humanexposure. They are derived to protect the most sensitive populations and are not cut-off levels,but rather comparison values. They do not consider carcinogenic effects, chemical interactions,multiple route exposure, or other media-specific routes of exposure, and are very conservativeconcentration values designed to protect sensitive members of the population.
Reference Dose Media Evaluation Guides (RMEGs) are another type of comparison valuederived to protect the most sensitive populations. They do not consider carcinogenic effects,chemical interactions, multiple route exposure, or other media-specific routes of exposure, andare very conservative concentration values designed to protect sensitive members of thepopulation.
Cancer Risk Evaluation Guides (CREGs) are estimated contaminant concentrations based on aone excess cancer in a million persons exposed to a chemical over a lifetime. These are also veryconservative values designed to protect sensitive members of the population. This Childs Property Health Consultation was prepared by the Illinois Department of Healthunder Cooperative Agreement with the Agency for Toxic Substances and Disease Registry. It isin accordance with approved methodology and procedures existing at the time the HealthConsultation was initiated. Gail D. Godfrey The Division of Health Assessment and Consultation (DHAC), ATSDR, has reviewed this Health Consultation and concurs with its findings. Richard Gillig
Figure 1. Childs Property Site Location Map 
Figure 2. Childs Property Surface Soil Sample Location Map
Technical Project Officer
SPS, SSAB, DHAC
Chief, SPS, SSAB, DHAC, ATSDR
