Details

Autor(en) / Beteiligte

• De França, Elvis Joacir
• de Lira, Marcelo Belmiro Gomes
• Ferreira, Fabiano Silva
• Silva, Ítalo Brás
• Santos, Mechele Silva
• Filho, Crescêncio Andrade Silva
• Nascimento, Alesxandro Francisco
• Costa, Matheus Andrade Rocha
• Santos, Thiago Oliveira

Titel

Natural radioisotopes and chemical elements causing carcinogenic risks in soils of urban green spaces in the Metropolitan Region of Recife, Pernambuco, Brazil?

Ist Teil von

• Journal of radioanalytical and nuclear chemistry, 2023-10, Vol.332 (10), p.3943-3955

Ort / Verlag

Cham: Springer International Publishing

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In view of the relevance of urban parks and public squares to the well-being of the population, coupled with the presence of uraniferous phosphorite in the Metropolitan Region of Recife, State of Pernambuco, Brazil, this study aimed to evaluate the contribution of natural radionuclides and the toxic chemical elements As, Cd, Ni, Pb, and Sb found in the soils of urban green spaces to the population’s carcinogenic risks. Samples consisting of soils collected from a depth of 0–15 cm were analyzed by High Resolution Gamma Spectrometry, Graphite Furnace Atomic Absorption Spectrometry and Inductively Coupled Plasma Mass Spectrometry, after chemical treatment. The annual effective dose rates were estimated to be lower than the threshold for individual exposure to ionizing radiation of 1 mSv year −1 , even in green spaces close to uraniferous outcrops. There were As, Cd, Ni, and Pb hotspots in these soils, resulting in high values of Pollution Load Index (PLI) for practically all the studied green spaces. Although considerable non-carcinogenic risks were not found, two green spaces presented significant carcinogenic risks for adults. Furthermore, significant carcinogenic risks would be expected for children at all study sites.