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7 results on '"Rhaissa Dayane Carneiro"'

1. Ecotoxicity of Malathion® 500 CE before and after UVC radiation and UV/H2O2 treatment

Author

Eliane Adams, Vinicius de Carvalho Soares de Paula, Rhaissa Dayane Carneiro, Rubia Matos de Lima, Monike Felipe Gomes, Wanessa Algarte Ramsdorf, and Adriane Martins de Freitas

Subjects
Chemistry, QD1-999
Abstract

Since 2008, Brazil has been the largest consumer of agrochemicals in the world, using pesticides to combat pests and vectors, impacting both microbiota and human health. Aiming at the degradation of the contaminants present in the environment, treatments by advanced oxidative processes are based on the synthesis of free radicals that allow the degradation of the pollutant. Among these processes are included UV/H2O2. By evaluating the ecotoxicity and phytotoxicity of the commercial Malathion® 500 CE product, using Aedes aegypti larvae and Lactuca sativa seed, the high toxicity of this formulation was observed. EC50 values for A. aegypti being equal to 0.4 μg L-1 and for L. sativa equal to 550 μg L-1. The commercial agrochemical degradation was carried out by UVC radiation and UV/H2O2, and the toxicity was evaluated after 30 and 120 minutes. After both treatments, the percentage of immobility was zero for A. aegypti, inferring the efficiency of the processes. However, for L. sativa, no treatment was able to remove or reduce initial toxicity.

Published
2018
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4. Photocatalytic and Structure Evaluation of G-C3n4/Carbon Microspheres and Melam/Dimelem Intermediates Under White Led and Uva-Vis Irradiation

Author

Rodríguez-Pérez, Adriana Patricia, primary, Christan, Rhaissa Dayane Carneiro de, additional, Imoski, Rafaela, additional, Cruz, Lais Jarenko da, additional, Albach, Breidi, additional, Dalmolin, Carla, additional, Rampon, Daniel da Silveira, additional, Santacruz, Cristian, additional, Sher, Farooq, additional, Ramsdorf, Wanessa Algarte, additional, Prola, Liziê Daniela Tentler, additional, and Liz, Marcus Vinicius de, additional

Published
2023
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5. Ecotoxicity of losartan potassium in aquatic organisms of different trophic levels

Author

Izonete Cristina Guiloski, Rhaissa Dayane Carneiro, Adriane Martins de Freitas, Regiane Reque, Flávia Yoshie Yamamoto, Wanessa Algarte Ramsdorf, Lucia Regina Rocha Martins, Federal University of Technology - Paraná, Universidade de São Paulo (USP), Research Institute Pelé Pequeno Príncipe, and Faculdades Pequeno Príncipe

Subjects
Aquatic Organisms, Food Chain, Health, Toxicology and Mutagenesis, Daphnia magna, Distinct trophic levels, Zoology, Toxicology, medicine.disease_cause, Losartan, Chlorophyceae, medicine, Animals, Antihypertensive drugs, reproductive and urinary physiology, Antihypertensive Agents, EC50, Trophic level, Glutathione Transferase, Pharmacology, biology, Characidae, Aquatic ecosystem, Muscles, fungi, Biochemical biomarkers, Brain, General Medicine, biology.organism_classification, Glutathione, Comet assay, Aquatic organisms, Daphnia, Toxicity, Acetylcholinesterase, Comet Assay, Ecotoxicity, Genotoxicity, Water Pollutants, Chemical
Abstract

Made available in DSpace on 2022-04-28T19:43:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The intensive use of the antihypertensive losartan potassium (LOS) has culminated in its high occurrence in aquatic environments. However, insufficient studies had investigated its effects in non-target organisms. In this study, ecotoxicity of LOS was assessed in aquatic organisms from distinct trophic levels (Desmodesmus subspicatus, Daphnia magna, and Astyanax altiparanae). Genotoxicity was assessed by the comet assay in D. magna and A. altiparanae, and biochemical biomarkers for the fish. LOS was more toxic to D. subspicatus (EC50(72h) = 27.93 mg L−1) than D. magna (EC50 = 303.69 mg L−1). Subsequently, this drug showed to induce more DNA damage in D. magna than A. altiparanae, when exposed to 2.5 mg L−1. No significant stress responses were observed by the fish biomarkers, suggesting that higher trophic levels organisms are more tolerant to LOS toxicity. LOS showed relatively low toxic potential for a short period of exposure, but with different patterns of toxicity for the organisms from distinct trophic levels, contributing to further risk assessment of LOS. Laboratory of Ecotoxicology Department of Chemistry and Biology Federal University of Technology - Paraná Institute of Biosciences State University of São Paulo Research Institute Pelé Pequeno Príncipe Faculdades Pequeno Príncipe FAPESP: 2016/15229-1

Published
2021

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