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Risk Assessment for Children Exposed to Beach Sands Impacted by Oil Spill Chemicals
Journal article   Open access   Peer reviewed

Risk Assessment for Children Exposed to Beach Sands Impacted by Oil Spill Chemicals

Jennifer C Black, Jennifer N Welday, Brian Buckley, Alesia Ferguson, Patrick L Gurian, Kristina D Mena, Ill Yang, Elizabeth McCandlish and Helena M Solo-Gabriele
International journal of environmental research and public health, v 13(9), pp 1-1
27 Aug 2016
PMID: 27618904
url
https://doi.org/10.3390/ijerph13090853View
Published, Version of Record (VoR)CC BY V4.0 Open

Abstract

Bathing Beaches Child Disasters Environmental Exposure - adverse effects Environmental Exposure - analysis Geologic Sediments - analysis Humans Petroleum Pollution - adverse effects Petroleum Pollution - analysis Polycyclic Aromatic Hydrocarbons Risk Assessment Silicon Dioxide Weather
Due to changes in the drilling industry, oil spills are impacting large expanses of coastlines, thereby increasing the potential for people to come in contact with oil spill chemicals. The objective of this manuscript was to evaluate the health risk to children who potentially contact beach sands impacted by oil spill chemicals from the Deepwater Horizon disaster. To identify chemicals of concern, the U.S. Environmental Protection Agency's (EPA's) monitoring data collected during and immediately after the spill were evaluated. This dataset was supplemented with measurements from beach sands and tar balls collected five years after the spill. Of interest is that metals in the sediments were observed at similar levels between the two sampling periods; some differences were observed for metals levels in tar balls. Although PAHs were not observed five years later, there is evidence of weathered-oil oxidative by-products. Comparing chemical concentration data to baseline soil risk levels, three metals (As, Ba, and V) and four PAHs (benzo[a]pyrene, benz[a]anthracene, benzo[b]fluoranthene, and dibenz[a,h]anthracene) were found to exceed guideline levels prompting a risk assessment. For acute or sub-chronic exposures, hazard quotients, computed by estimating average expected contact behavior, showed no adverse potential health effects. For cancer, computations using 95% upper confidence limits for contaminant concentrations showed extremely low increased risk in the 10(-6) range for oral and dermal exposure from arsenic in sediments and from dermal exposure from benzo[a]pyrene and benz[a]anthracene in weathered oil. Overall, results suggest that health risks are extremely low, given the limitations of available data. Limitations of this study are associated with the lack of toxicological data for dispersants and oil-spill degradation products. We also recommend studies to collect quantitative information about children's beach play habits, which are necessary to more accurately assess exposure scenarios and health risks.

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Collaboration types
Domestic collaboration
Web of Science research areas
Environmental Sciences
Public, Environmental & Occupational Health
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