Estimating incident ultraviolet radiation exposure in the northern Gulf of Mexico during the Deepwater Horizon oil spill

Environmental Toxicology and Chemistry
Kristin BridgesAaron P Roberts

Abstract

Millions of barrels of oil were released into the Gulf of Mexico following the 2010 explosion of the Deepwater Horizon oil rig. Polycyclic aromatic hydrocarbons (PAHs) are toxic components of crude oil, which may become more toxic in the presence of ultraviolet (UV) radiation, a phenomenon known as photo-induced toxicity. The Deepwater Horizon spill impacted offshore and estuarine sites, where biota may be co-exposed to UV and PAHs. Penetration of UV into the water column is affected by site-specific factors. Therefore, measurements and/or estimations of UV are necessary when one is assessing the risk to biota posed by photo-induced toxicity. We describe how estimates of incident UV were determined for the area impacted by the Deepwater Horizon oil spill, using monitoring data from radiometers near the spill, in conjunction with reference spectra characterizing the composition of solar radiation. Furthermore, we provide UV attenuation coefficients for both near- and offshore sites in the Gulf of Mexico. These estimates are specific to the time and location of the spill, and fall within the range of intensities utilized during photo-induced toxicity tests performed in support of the Deepwater Horizon Natural Resource Damage Asse...Continue Reading

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Jul 23, 2015·Environmental Toxicology and Chemistry·Matthew M AlloyAaron P Roberts
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Oct 28, 2016·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Aaron P RobertsJames T Oris
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Dec 8, 2016·Environmental Toxicology and Chemistry·Alexis M WormingtonAaron P Roberts

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Citations

Jun 2, 2018·Environmental Toxicology and Chemistry·Kristin N BridgesAaron P Roberts
Feb 3, 2021·Archives of Environmental Contamination and Toxicology·Marie E DeLorenzoEdward F Wirth
Apr 25, 2020·The Science of the Total Environment·F Mikaela NordborgAndrew P Negri
Nov 23, 2018·The Science of the Total Environment·Christina PasparakisMartin Grosell
Sep 21, 2021·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Ryan TakeshitaAilsa J Hall
Sep 29, 2021·The Science of the Total Environment·Christina PasparakisMartin Grosell

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