Urinary 1-hydroxypyrene levels in offshore workers

Area of Science:

• Occupational Health
• Environmental Chemistry
• Biomonitoring

Background:

• Polycyclic Aromatic Hydrocarbons (PAHs) are prevalent in oil production environments.
• Assessing internal dose of PAHs is crucial for understanding worker exposure.
• Urinary 1-hydroxypyrene (1OHP) is a validated biomarker for PAH exposure.

Purpose of the Study:

• To compare pre- and post-shift urinary 1-hydroxypyrene (1OHP) levels in offshore oil production workers.
• To evaluate internal dose of PAHs in exposed workers versus an unexposed control group.
• To identify specific job roles with potentially higher PAH exposure.

Main Methods:

• Urine samples were collected from 42 workers over three consecutive 12-h shifts.
• 1-hydroxypyrene (1OHP) levels were quantified using high-performance liquid chromatography (HPLC).
• Statistical analysis employed analysis of covariance to compare exposure groups.

Main Results:

• Exposed offshore workers exhibited significantly higher post-shift 1OHP levels than controls.
• No statistically significant difference in post-shift 1OHP was found between tank workers and process operators.
• Urinary 1OHP levels indicated low-level PAH exposure in the studied workforce.

Conclusions:

• Offshore oil production workers experience measurable PAH exposure.
• Biomonitoring of 1OHP confirms occupational exposure to PAHs in this industry.
• Further targeted interventions may be considered for PAH exposure mitigation.