Assessment of Public Health Risks Associated with Naphthalene Entering Residences and Commercial Space from Vapor Intrusion at MGP Sites
- 1 1Center for Environmental/Occupational Risk Analysis and Management, College of Public Health, University of South Florida, Tampa, USA; 2GEI Consultants Inc., Valrico, USA.
- 2 GEI Consultants Inc., Valrico, USA.
- 3 Center for Environmental/Occupational Risk Analysis and Management, College of Public Health, University of South Florida, Tampa, USA
- 4 Center for Environmental/Occupational Risk Analysis and Management, College of Public Health, University of South Florida, Tampa, USA
- 5 Center for Environmental/Occupational Risk Analysis and Management, College of Public Health, University of South Florida, Tampa, USA
Abstract
Naphthalene, a constituent of coal tar, is a contaminant frequently found at former manufactured gas plants (MGP). Development at these sites has resulted in residential and commercial areas with potential exposures from vapor intrusion adversely affecting indoor air of residences and buildings. Naphthalene is routinely analyzed in soil vapor intrusion assessments for properties overlying and surrounding former MGP sites. The United States Environmental Protection Agency (EPA) has a proposed unit risk factor and the State of California has promulgated a unit risk factor for naphthalene. Naphthalene exposure from vapor intrusion is potentially a public health risk. The purpose of this study was to evaluate three sites located in the northeast United States to determine the frequency of naphthalene detection in indoor air. A total of 79 properties were included in the study. A total of 546 indoor air samples were analyzed for naphthalene on 161 occasions. Naphthalene concentrations ranged from 0.26 to 51 μg/m 3 of air. Only 3 of the 546 indoor air samples detected naphthalene above the ninety-fifth percentile background value of 12 μg/m 3 of air. Risk analysis indicated naphthalene vapor intrusion was not a public health risk among the 79 properties built on or near the former MGP sites.
- R. B. DeHate, G. T. Johnson and R. D. Harbison, “Risk Characterization of Vapor Intrusion in Former Manufactured Gas Plant Sites,” Regulatory Toxicology and Pharmacology, Vol. 59, No. 2, 2011, pp. 353-359. http://dx.doi.org/10.1016/j.yrtph.2010.12.001
- United States Environmental Protection Agency, “Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air, 2nd Edition, Compendium Method TO-15 Determination of Volatile Organic Compounds (VOCs),” Air Collected in Specially-Prepared Canisters and Analyzed by Gas Chromatography/ Mass Spectrometry (GC/MS), Center for Environmental Research Information, Office of Research and Development, Cincinnati, 1999.
- Electric Power Research Institute, “50 MGP Site Management Portfolio,” Federal Register, Vol. 77, No. 88, 2008, pp. 26751-26755.
- L. Turczynowicz and N. I. Robinson, “Exposure Assessment Modeling for Volatiles—Towards an Australian indoor vapor intrusion model,” Journal of Toxicology and Environmental Health, Part A, Vol. 70, No. 19, 2007, pp. 1619-1634. http://dx.doi.org/10.1080/15287390701434711
- D. J. Vorhees, W. H. Weisman and J. B. Gustafson, “Human Health-Risk Based Evaluation of Petroleum Release Sites: Implementing the Working Group Approach,” Total Petroleum Hydrocarbon Criteria Working Group, Vol. 5, Amherst Scientific Publishers, Amherst, 1999.
- T. E. McHugh, L. Beckley, D. Bailey, K. Gorder, E. Dettenmaier, I. Rivera-Duarte, S. Brock and I. C. Mac-Gregor, “Evaluation of Vapor Intrusion Using Controlled Building Pressure,” Environmental Science & Technology, Vol. 46, No. 9, 2012, pp. 4792-4799. http://dx.doi.org/10.1021/es204483g
- G. J. Kullman and R. A. Hill, “Indoor Air Quality Affected by Abandoned Gasoline Tanks,” Applied Occupational and Environmental Hygiene, Vol. 5, No. 1, 1990, pp. 36-37. http://dx.doi.org/10.1080/1047322X.1990.10389585
- M. L. Fischer, A. J. Bentley, K. A. Dunkin, A. T. Hodgson, W. W. Nazaroff, R. G. Sextro and J. M. Daisey, “Factors Affecting Indoor Air Concentrations of Volatile Organic Compounds at a Site of Subsurface Gasoline Contamination,” Environmental Science & Technology, Vol. 30, No. 10, 1996, pp. 2948-2957. http://dx.doi.org/10.1021/es950912e
- C. L. Moseley and M. R. Meyer, “Petroleum Contamination of an Elementary School: A Case History Involving Air, Soil-Gas, and Groundwater Monitoring,” Environmental Science & Technology, Vol. 26, No. 1, 1992, pp. 185-192. http://dx.doi.org/10.1021/es00025a023
- F. Y. Griego, K. T. Bogen, P. S. Price and D. L. Weed, “Exposure, Epidemiology and Human Cancer Incidence of Naphthalene,” Regulatory Toxicology and Pharmacology, Vol. 51, No. 2, 2008, pp. S22-S26. http://dx.doi.org/10.1016/j.yrtph.2008.02.003