Inhalation - Route of EDC exposure in seabirds (Larus argentatus) from the Southern Baltic

Lucyna Falkowska , Agnieszka Grajewska , Marta Staniszewska , Iga Nehring , Emilia Szumiło-Pilarska , Dominika Saniewska

Abstract

Despite the presence of endocrine disruptingmercury, PAHs, alkylphenols and bisphenol A in inhaled air, scientific literature lacks information on their penetration into the lungs. Large lung capacity in birds makes this route of penetration more significant than in other animals. The studies were conducted on lungs of herring gulls found in the Gulf of Gdansk area. The results were juxtaposed with other tissues, including the intestines, which reflect the main, alimentary penetration route of harmful substances into the organism. It was determined that the capacity of bird's lungs, affects the efficiency with which mercury is absorbed from the air. Birds found to have high mercury concentrations in lungs had low PAHs concentrations, what was determined by the fact that the birds foraged in two different areas, as well as on different trophic levels. The alimentary route of phenol derivatives into the organism was of greater significance than inhalation.