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Consumption of Fish and Shrimp from Southeast Louisiana Poses No Unacceptable Lifetime Cancer Risks Attributable to High‐Priority Polycyclic Aromatic Hydrocarbons

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  • Jeffrey K. Wickliffe
  • Bridget Simon‐Friedt
  • Jessi L. Howard
  • Ericka Frahm
  • Buffy Meyer
  • Mark J. Wilson
  • Deepa Pangeni
  • Edward B. Overton

Abstract

Following oil spills such as the Deepwater Horizon accident (DWH), contamination of seafood resources and possible increased health risks attributable to consumption of seafood in spill areas are major concerns. In this study, locally harvested finfish and shrimp were collected from research participants in southeast Louisiana and analyzed for polycyclic aromatic hydrocarbons (PAHs). PAHs are some of the most important chemicals of concern regarding oil‐spill‐contaminated seafood resources during and following oil spills. Some PAHs are considered carcinogens for risk assessment purposes, and currently, seven of these can be combined in lifetime cancer risk assessments using EPA approaches. Most PAHs were not detected in these samples (minimum detection limits ranged from 1.2 to 2.1 PPB) and of those that were detected, they were generally below 10 PPB. The pattern of detected PAHs suggested that the source of these chemicals in these seafood samples was not a result of direct contact with crude oil. Lifetime cancer risks were assessed using conservative assumptions and models in a probabilistic framework for the seven carcinogenic PAHs. Lifetime health risks modeled using this framework did not exceed a 1/10,000 cancer risk threshold. Conservative, health‐protective deterministic estimates of the levels of concern for PAH chemical concentration and seafood intake rates were above the concentrations and intake rates modeled under this probabilistic framework. Taken together, consumption of finfish and shrimp harvested from southeast Louisiana following the DWH does not pose unacceptable lifetime cancer risks from these seven carcinogenic PAHs even for the heaviest possible consumers.

Suggested Citation

  • Jeffrey K. Wickliffe & Bridget Simon‐Friedt & Jessi L. Howard & Ericka Frahm & Buffy Meyer & Mark J. Wilson & Deepa Pangeni & Edward B. Overton, 2018. "Consumption of Fish and Shrimp from Southeast Louisiana Poses No Unacceptable Lifetime Cancer Risks Attributable to High‐Priority Polycyclic Aromatic Hydrocarbons," Risk Analysis, John Wiley & Sons, vol. 38(9), pages 1944-1961, September.
    • Handle: RePEc:wly:riskan:v:38:y:2018:i:9:p:1944-1961
    DOI: 10.1111/risa.12985
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    References listed on IDEAS

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    3. Wim Verbeke & Filiep Vanhonacker & Lynn J. Frewer & Isabelle Sioen & Stefaan De Henauw & John Van Camp, 2008. "Communicating Risks and Benefits from Fish Consumption: Impact on Belgian Consumers' Perception and Intention to Eat Fish," Risk Analysis, John Wiley & Sons, vol. 28(4), pages 951-967, August.
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    1. Kyung-Hwa Choi & Myung-Sook Park & Mina Ha & Jong-Il Hur & Hae-Kwan Cheong, 2018. "Cancer Incidence Trend in the Hebei Spirit Oil Spill Area, from 1999 to 2014: An Ecological Study," IJERPH, MDPI, vol. 15(5), pages 1-13, May.

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