Exposure Assessment of Rayong Oil Spill Cleanup Workers

Thammasin Ingviya, Chanthip Intawong, Salahaddhin Abubaker, Paul T. Strickland

Research output: Contribution to journalArticle

Abstract

In July of 2013, a pipeline connecting an offshore oil platform to a tanker caused crude oil to spill into the Sea of Rayong off the coast of Thailand. The resulting oil slick, estimated to be between 50 and 190 m3 (336–1200 barrels), washed ashore 1 day later on the island of Samet. We conducted a study to quantify internal dose of polycyclic aromatic hydrocarbons (PAHs) and benzene in 1262 oil spill cleanup workers, and to examine factors related to their dose. Frozen stored urine samples (n = 1343) collected from the workers during the 1 month cleanup period were used to measure the concentration of 1-hydroxypyrene-glucuronide (1-OHPG), cotinine and creatinine. Data from questionnaires and urinary trans,trans-muconic acid (t,t-MA), a benzene metabolite, measured previously as part of a worker health surveillance plan, were linked with the laboratory data. The internal dose of urinary 1-OHPG was highest in individuals who worked during the first 3 days of cleanup work (median 0.97 pmol/ml) and was 66.7% lower (median 0.32 pmol/ml) among individuals who worked in the final week of the study (days 21–28). After adjusting for age, cotinine and creatinine by regression analysis, the decline in urinary 1-OHPG concentration with days of cleanup remained significant (P-trend < 0.001). A decreasing trend by days of cleanup was also observed for detectable urinary t,t-MA percentage (P-trend < 0.001). Rayong oil spill cleanup workers exhibited evidence of elevated levels of PAH and benzene exposure during the early weeks of cleanup, compared to near background levels 4 weeks after cleanup began. Long-term health monitoring of oil spill cleanup workers is advised.

Original languageEnglish (US)
JournalExposure and Health
DOIs
StateAccepted/In press - Jan 1 2019

Fingerprint

Petroleum Pollution
Oil spills
cleanup
oil spill
Benzene
Polycyclic aromatic hydrocarbons
Cotinine
Polycyclic Aromatic Hydrocarbons
Health
Creatinine
Oils
Acids
Hazardous materials spills
Metabolites
Regression analysis
benzene
Coastal zones
Petroleum
Thailand
Crude oil

Keywords

  • Benzene
  • Biomarkers
  • Cleanup
  • Exposure
  • Oil spill
  • PAHs

ASJC Scopus subject areas

  • Water Science and Technology
  • Pollution
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Exposure Assessment of Rayong Oil Spill Cleanup Workers. / Ingviya, Thammasin; Intawong, Chanthip; Abubaker, Salahaddhin; Strickland, Paul T.

In: Exposure and Health, 01.01.2019.

Research output: Contribution to journalArticle

Ingviya, Thammasin ; Intawong, Chanthip ; Abubaker, Salahaddhin ; Strickland, Paul T. / Exposure Assessment of Rayong Oil Spill Cleanup Workers. In: Exposure and Health. 2019.
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