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Estimated Soil Ingestion Rates for Use in Risk Assessment

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  • Peter K. LaGoy

Abstract

Assessing the risks to human health posed by contaminants present in soil requires an estimate of likely soil ingestion rates. In the past, direct measurements of soil ingestion were not available and risk assessors were forced to estimate soil ingestion rates based on observations of mouthing behavior and measurements of soil on hands. Recently, empirical data on soil ingestion rates have become available from two sources (Binder et al., 1986(1) and van Wijnen et al., 1986(2). Although preliminary, these data can be used to derive better estimates of soil ingestion rates for use in risk assessments. Estimates of average soil ingestion rates derived in this paper range from 25 to 100 mg/day, depending on the age of the individual at risk. Maximum soil ingestion rates that are unlikely to underestimate exposure range from 100 to 500 mg. A value of 5,000 mg/day is considered a reasonable estimate of a maximum single‐day exposure for a child with habitual pica.

Suggested Citation

  • Peter K. LaGoy, 1987. "Estimated Soil Ingestion Rates for Use in Risk Assessment," Risk Analysis, John Wiley & Sons, vol. 7(3), pages 355-359, September.
    • Handle: RePEc:wly:riskan:v:7:y:1987:i:3:p:355-359
    DOI: 10.1111/j.1539-6924.1987.tb00471.x
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    References listed on IDEAS

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    1. John K. Hawley, 1985. "Assessment of Health Risk from Exposure to Contaminated Soil," Risk Analysis, John Wiley & Sons, vol. 5(4), pages 289-302, December.
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    Cited by:

    1. Kimberly M. Thompson & David E. Burmaster & Edmund A.C. Crouch3, 1992. "Monte Carlo Techniques for Quantitative Uncertainty Analysis in Public Health Risk Assessments," Risk Analysis, John Wiley & Sons, vol. 12(1), pages 53-63, March.
    2. Kimberly M. Thompson & David E. Burmaster, 1991. "Parametric Distributions for Soil Ingestion by Children," Risk Analysis, John Wiley & Sons, vol. 11(2), pages 339-342, June.

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