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Mar Pollut Bull. 2016 Feb 15;103(1-2):286-293. doi: 10.1016/j.marpolbul.2015.12.002. Epub 2016 Jan 8.

Spatial and temporal distribution of water column total polycyclic aromatic hydrocarbons (PAH) and total petroleum hydrocarbons (TPH) from the Deepwater Horizon (Macondo) incident.

Author information

1
Geochemical and Environmental Research Group (GERG), Texas A&M University, 833 Graham Rd. College Station, TX 77845, USA. Electronic address: terry@gerg.tamu.edu.
2
Geochemical and Environmental Research Group (GERG), Texas A&M University, 833 Graham Rd. College Station, TX 77845, USA. Electronic address: jlsericano@geos.tamu.edu.
3
Geochemical and Environmental Research Group (GERG), Texas A&M University, 833 Graham Rd. College Station, TX 77845, USA. Electronic address: sweet@gerg.tamu.edu.
4
Geochemical and Environmental Research Group (GERG), Texas A&M University, 833 Graham Rd. College Station, TX 77845, USA. Electronic address: tknap@tamu.edu.
5
Geochemical and Environmental Research Group (GERG), Texas A&M University, 833 Graham Rd. College Station, TX 77845, USA. Electronic address: guinasso@gmail.com.

Abstract

Pre-spill background concentrations of TPH and PAH in water samples from the Gulf of Mexico are compared with samples (over 20,000) collected during and after the Deepwater Horizon incident (13,000 stations). Samples were collected by multiple response agencies, trustees and BP and reported in the Gulf Science Data. The samples were collected from a few m to over 800 km in all directions from the wellhead. During the incident, samples with the highest concentrations of hydrocarbons were collected proximal to the wellhead or in samples collected from surface slicks and dispersant use. Of the 13,172 water sample TPH concentrations reported, 84% were below 1 μg/L (background). Of the 16,557 water sample PAH concentrations reported, 79% were below 0.056 μg/L (the median field blank, background). The percentage of samples below background increased rapidly after the well was capped. The spatial and temporal distributions of these hydrocarbon data are presented.

KEYWORDS:

Deepwater Horizon incident; Gulf science data; PAH; TPH; Water column

PMID:
26774441
DOI:
10.1016/j.marpolbul.2015.12.002
[Indexed for MEDLINE]

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