Blood lead levels in scuba divers: a pilot study

Area of Science:

• Environmental Health
• Toxicology
• Sports Medicine

Background:

• Lead is a toxic metal known for bioaccumulation.
• Lead is commonly used in diving weights for recreational scuba diving.

Purpose of the Study:

• To assess blood lead concentrations in recreational scuba divers.
• To determine if lead diving weights contribute to elevated lead levels in divers.

Main Methods:

• Blood samples were collected from 20 recreational scuba divers.
• Blood lead concentrations were measured and compared to background levels.

Main Results:

• Average blood lead concentration was 26.5 µg∙L⁻¹ (range 11.7-44.8 µg∙L⁻¹).
• All tested divers had blood lead levels within the normal background range.
• The average time between the last dive and blood sampling was 4.8 weeks.

Conclusions:

• This study found no evidence of elevated blood lead concentrations in the studied group of scuba divers.
• The findings suggest that lead diving weights may not significantly increase blood lead levels in recreational divers.
• Limitations include a small sample size and variable time intervals, preventing generalization of results.