A study examined trace element concentrations (mercury, cadmium, copper, zinc, lead, aluminum, nickel, arsenic, selenium) in the liver, kidney, muscle, and feathers of aquatic birds in wetlands of Southwest Atlantic France using advanced mass spectrometry.
The research involved greylag geese, red knots, and grey plovers, primarily from hunter-shot samples, and assessed the relationship between trace element levels, age, and sex of the birds.
Results indicated that most trace elements were below toxic levels; however, greylag geese exhibited lead poisoning, likely due to ingesting lead shot, while cadmium levels increased with age and females showed higher trace element concentrations than males.