Accessing the Health Risk of Ingestion of Surface Water from Lucrécia and Parelhas Dams in Northeast Brazil Using the Sentinel Organism Drosophila melanogaster

• Published in: Bulletin of environmental contamination and toxicology Vol. 112; no. 1; p. 12
• Main Authors: do Nascimento-Silva, Charles, do Carmo-Neto, Edson Francisco, de Santana, Samuel Lima, de Amorim, Erima Maria, de Oliveira, Rafaela Alves, de Amaral, Deric Soares, Costa, Matheus Andrade Rocha, do Nascimento, Alesxandro Francisco, dos Santos, Robson Alves, De França, Elvis Joacir, Rohde, Claudia
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.01.2024; Springer Nature B.V
• Subjects: Animals; Aquatic Pollution; Bioassays; Brazil; Cadmium; Cell culture; Chromium; Chronic exposure; Comet assay; Copper; Dams; Drosophila melanogaster; Earth and Environmental Science; Eating; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental Monitoring - methods; Fruit flies; Genotoxicity; Health risks; Heavy metals; Hemolymph; Ingestion; Insects; Iron; Larvae; Manganese; Metal concentrations; Metals, Heavy - analysis; Pegmatite; Pollution; Potatoes; Radioactivity; Radon; Semi arid areas; Semiarid lands; Sentinel Species; Soil Science & Conservation; Surface water; Thorium; Toxicity; Uranium; Waste Water Technology; Water; Water analysis; Water Management; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - toxicity; Water pollution; Water Pollution Control; Water sampling; Brazil; Radionuclides; Surface Water; Comet Assay; Semiarid
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/s00128-023-03838-x

This study investigated the genotoxic risk of chronic exposure of hemolymph’s cells of Drosophila melanogaster (Insecta, Diptera) to water samples from Boqueirão de Parelhas Dam and from Lucrécia Dam in the semiarid region of Brazil. The dams are located over the Pegmatite Province of Borborema, with rocks rich in uranium and thorium. Water samples hydrated a culture medium composed of mashed potatoes, where larvae of D. melanogaster fed for 24 h, before be underwent to the Comet assay. The same water was evaluated for the presence of dissolved Radon gas ( 222 Rn) and concentrations of 11 toxic metals (Ag, Al, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn). The results indicated a genotoxic effect resulting from exposure to the waters of the Parelhas dam, in the samples of August 2018; and in Lucrécia dam, in January 2019. D. melanogaster stood out for its high sensitivity to monitor the genotoxic effects of compounds dissolved in public dams. And unlike to other essentially aquatic sentinel organisms, this species stood out as a model to concomitant studies of air and water possible contaminated, in a scenario of natural environmental radioactivity present in semiarid of Brazil.