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do Nascimento-Silva C, do Carmo-Neto EF, de Santana SL, de Amorim EM, de Oliveira RA, de Amaral DS, Costa MAR, do Nascimento AF, Dos Santos RA, De França EJ, Rohde C. Accessing the Health Risk of Ingestion of Surface Water from Lucrécia and Parelhas Dams in Northeast Brazil Using the Sentinel Organism Drosophila melanogaster. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 112:12. [PMID: 38093100 DOI: 10.1007/s00128-023-03838-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023]
Abstract
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 (222Rn) 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.
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Affiliation(s)
- Charles do Nascimento-Silva
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, CEP 50670-901, Recife, Pernambuco, Brazil
- Laboratório de Genética, Centro Acadêmico de Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Rua do Alto do Reservatório s/n, CEP 55608-680, Vitória de Santo Antão, Pernambuco, Brazil
| | - Edson Francisco do Carmo-Neto
- Laboratório de Genética, Centro Acadêmico de Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Rua do Alto do Reservatório s/n, CEP 55608-680, Vitória de Santo Antão, Pernambuco, Brazil
| | - Samuel Lima de Santana
- Laboratório de Genética, Centro Acadêmico de Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Rua do Alto do Reservatório s/n, CEP 55608-680, Vitória de Santo Antão, Pernambuco, Brazil
| | - Erima Maria de Amorim
- Laboratório de Genética, Centro Acadêmico de Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Rua do Alto do Reservatório s/n, CEP 55608-680, Vitória de Santo Antão, Pernambuco, Brazil
| | - Rafaela Alves de Oliveira
- Laboratório de Genética, Centro Acadêmico de Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Rua do Alto do Reservatório s/n, CEP 55608-680, Vitória de Santo Antão, Pernambuco, Brazil
| | - Deric Soares de Amaral
- Centro Regional de Ciências Nucleares do Nordeste (CRCN-NE), Comissão Nacional de Energia Nuclear, Avenida Professor Luiz Freire 200, CEP 50740-545, Recife, Pernambuco, Brazil
| | - Matheus Andrade Rocha Costa
- Centro Regional de Ciências Nucleares do Nordeste (CRCN-NE), Comissão Nacional de Energia Nuclear, Avenida Professor Luiz Freire 200, CEP 50740-545, Recife, Pernambuco, Brazil
| | - Alesxandro Francisco do Nascimento
- Centro Regional de Ciências Nucleares do Nordeste (CRCN-NE), Comissão Nacional de Energia Nuclear, Avenida Professor Luiz Freire 200, CEP 50740-545, Recife, Pernambuco, Brazil
| | - Robson Alves Dos Santos
- Centro Regional de Ciências Nucleares do Nordeste (CRCN-NE), Comissão Nacional de Energia Nuclear, Avenida Professor Luiz Freire 200, CEP 50740-545, Recife, Pernambuco, Brazil
| | - Elvis Joacir De França
- Centro Regional de Ciências Nucleares do Nordeste (CRCN-NE), Comissão Nacional de Energia Nuclear, Avenida Professor Luiz Freire 200, CEP 50740-545, Recife, Pernambuco, Brazil
| | - Claudia Rohde
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, CEP 50670-901, Recife, Pernambuco, Brazil.
- Laboratório de Genética, Centro Acadêmico de Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Rua do Alto do Reservatório s/n, CEP 55608-680, Vitória de Santo Antão, Pernambuco, Brazil.
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Martinelli S, Medeiros AN, de Souza RF, Marconi AM, Navoni JA. Analysis of the cancer occurrence related to natural radioactivity in the Rio Grande do Norte State, Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:89140-89152. [PMID: 37442937 DOI: 10.1007/s11356-023-28708-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
The state of Rio Grande do Norte, located in the Northeast region of Brazil, has areas of granites and pegmatites with minerals that have varying concentrations of uranium. Consequently, high concentrations of radon gas, a carcinogenic substance for humans, can occur. The present study aimed to assess the occurrence of cancer and its association with exposure to sources of natural radioactivity using geological and geophysical information in the aforementioned state. The spatial dependence of pulmonary, breast, stomach, leukemia, and skin cancer cases with the location of radioisotope sources were analyzed using geoprocessing tools. The geoprocessing analysis showed a differential pattern of uranium emission throughout the state, with the highest emission from areas with pegmatites outcrops. A spatial dependency of cancer cases was shown (Moran index: 0.43; p < 0.01). Moreover, a higher rate of natural radioactivity-cancer cases was associated with the high-intensity natural radioactivity areas: odds ratio:1.21 (95% CI 1.20; 1.23), following the same pattern when separately compared the different related types of cancer. These results highlight the importance of natural radioactivity as a public health problem in the Brazilian environmental scenario, confirming the need for further studies as the first toward understanding and implementing health management strategies mitigating the exposures, especially in areas of environmental risk.
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Affiliation(s)
- Simone Martinelli
- Development and Environment, Biosciences Center, Federal University of Rio Grande Do Norte, Natal, RN, Brazil
| | - Amanda Nogueira Medeiros
- Development and Environment, Biosciences Center, Federal University of Rio Grande Do Norte, Natal, RN, Brazil
| | - Raquel Franco de Souza
- Development and Environment, Biosciences Center, Federal University of Rio Grande Do Norte, Natal, RN, Brazil
- Center for Exact and Earth Sciences - Department of Geology, Laboratory of Geochemistry, Federal University of Rio Grande Do Norte, Natal, RN, Brazil
| | | | - Julio Alejandro Navoni
- Development and Environment, Biosciences Center, Federal University of Rio Grande Do Norte, Avenida Sen. Salgado Filho, No. 3000, Lagoa Nova, Natal, RN, 59078-970, Brazil.
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Soldi KC, Londero JEL, Schavinski CR, Schuch AP. Genotoxicity of surface waters in Brazil. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2023; 888:503638. [PMID: 37188436 DOI: 10.1016/j.mrgentox.2023.503638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 04/10/2023] [Accepted: 04/20/2023] [Indexed: 05/17/2023]
Abstract
Brazil has abundant surface water resources, huge aquatic biodiversity and is home to 213 million people. Genotoxicity assays are sensitive tools to detect the effects of contaminants in surface waters and wastewaters, as well as to determine potential risks of contaminated waters to aquatic organisms and human health. This work aimed to survey the articles published in 2000-2021 that evaluated the genotoxicity of surface waters within Brazilian territory to unveil the profile and trends of this topic over time. In our searches, we considered articles focused on assessing aquatic biota, articles that conducted experiments with caged organisms or standardized tests in the aquatic sites, as well as articles that transported water or sediment samples from aquatic sites to the laboratory, where exposures were performed with organisms or standardized tests. We retrieved geographical information on the aquatic sites evaluated, the genotoxicity assays used, the percentage of genotoxicity detected, and, when possible, the causative agent of aquatic pollution. A total of 248 articles were identified. There was a trend of increase in the number of publications and annual diversity of hydrographic regions evaluated over time. Most articles focused on rivers from large metropolises. A very low number of articles were conducted on coastal and marine ecosystems. Water genotoxicity was detected in most articles, regardless of methodological approach, even in little-studied hydrographic regions. The micronucleus test and the alkaline comet assay were widely applied with blood samples, mainly derived from fish. Allium and Salmonella tests were the most frequently used standard protocols. Despite most articles did not confirm polluting sources and genotoxic agents, the detection of genotoxicity provides useful information for the management of water pollution. We discuss key points to be assessed to reach a more complete picture of the genotoxicity of surface waters in Brazil.
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Affiliation(s)
- Karen Costa Soldi
- Post-Graduation Program in Animal Biodiversity, Department of Ecology and Evolution, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - James Eduardo Lago Londero
- Post-Graduation Program in Biological Sciences: Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Cassiano Ricardo Schavinski
- Post-Graduation Program in Biological Sciences: Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - André Passaglia Schuch
- Post-Graduation Program in Animal Biodiversity, Department of Ecology and Evolution, Federal University of Santa Maria, Santa Maria, RS, Brazil; Post-Graduation Program in Biological Sciences: Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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Abstract
The implementation of natural parks in cities is a current and controversial theme. Therefore, in Lake Buritis, which is a leisure area for the population of the city of Goiatuba, Goiás, Brazil, the quality of the water was analyzed, carrying out quantitative tests of the water samples at six different points between the source and the outlet of the lake that flows into the stream, Chico À Toa. Physical–chemical tests (turbidity, pH, alkalinity, electrical conductivity, color, nitrate and hardness parameters), microbiological tests for species identification, analysis of the antimicrobial susceptibility profile, metals analysis and Allium cepa test, were performed. The total coliforms number in water samples was higher than the maximum value established by Brazilian legislation, demonstrating high fecal contamination during the spring in samples from an artesian well. The bacterial diversity found was large and there were many pathogenic bacteria. The A. cepa test demonstrated a cytotoxic potential for water from the source and outlet of Buritis Lake. Statistical tests were applied to verify existing correlations between parameters. Among the analyzed data, the highest correlation was between the color and turbidity parameters and the grouping between the metals (lead, iron, cadmium and magnesium).
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Methneni N, González JAM, Van Loco J, Anthonissen R, de Maele JV, Verschaeve L, Fernandez-Serrano M, Mansour HB. Ecotoxicity profile of heavily contaminated surface water of two rivers in Tunisia. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 82:103550. [PMID: 33227413 DOI: 10.1016/j.etap.2020.103550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/23/2020] [Accepted: 11/13/2020] [Indexed: 06/11/2023]
Abstract
Persistent organic and inorganic contaminants generated by industrial effluent wastes poses a threat to the maintenance of aquatic ecosystems and public health. The Khniss and Hamdoun rivers, located in the central-east of Tunisia, receive regularly domestic and textile wastewater load. The present study aimed to survey the water quality of these rivers using physicochemical, analytical and toxicological approaches. In the physicochemical analysis, the recorded levels of COD and TSS in both samples exceed the Tunisian standards. Using the analytical approach, several metals and some textile dyes were detected. Indeed, 17 metals were detected in both samples in varying concentrations, which do not exceed the Tunisian standards. The sources of metals pollution can be of natural and anthropogenic origin. Three textile disperse dyes were detected with high levels compared to other studies: the disperse orange 37 was detected in the Khniss river with a concentration of 6.438 μg/L and the disperse red 1 and the disperse yellow 3 were detected in the Hamdoun river with concentrations of 3.873 μg/L and 1895 μg/L, respectively. Textile activities were the major sources of disperse dyes. For both samples, acute and chronic ecotoxicity was observed in all the studied organisms, however, no genotoxic activity was detected. The presence of metals and textile disperse dyes could be associated with the ecotoxicological effects observed in the river waters, in particular due to the industrial activity, a fact that could deteriorate the ecosystem and therefore threaten the human health of the population living in the study areas. Combining chemical and biological approaches, allowed the detection of water ecotoxicity in testing organisms and the identification of possible contributors to the toxicity observed in these multi-stressed water reservoirs.
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Affiliation(s)
- Nosra Methneni
- Research Unit of Analysis and Process Applied to the Environment-APAE (UR17ES32) Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir, Tunisia; Department of Chemical Engineering, Faculty of Sciences, University of Granada, Spain; Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, Brussels, Belgium
| | | | - Joris Van Loco
- Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, Brussels, Belgium
| | - Roel Anthonissen
- Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
| | | | - Luc Verschaeve
- Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
| | | | - Hedi Ben Mansour
- Research Unit of Analysis and Process Applied to the Environment-APAE (UR17ES32) Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir, Tunisia.
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da Costa Dantas R, Navoni JA, de Alencar FLS, da Costa Xavier LA, do Amaral VS. Natural radioactivity in Brazil: a systematic review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:143-157. [PMID: 31832968 DOI: 10.1007/s11356-019-06962-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Natural radioactivity is a public health concern worldwide. Its deleterious effects are largely associated with emitting ionizing particles which generate innumerable toxicological consequences to human being. The present study aimed to describe the research state of the art on natural radioactivity in Brazil through a systematic review limited to articles published in the twenty-first century in the PubMed, SciELO, Lilacs, and Google Scholar databases. A total of 55 research articles were considered for this purpose. Based on the collected sample types, the radiation analysis in most of the scientific reports was performed on solid samples (soil/sediment/rocks), followed by water and air. In fact, most of the available information came from geological studies. A wide range of concentrations and a variety of radionuclides have been assessed, with radium being the most cited. Most of the studies described radiation levels above the international guidelines, and consider the Brazilian territory as a high natural background radiation region (HNBR). In comparison with other HNBR areas, the scientific information about the related risks to human health is still scarce. There is uncertainty about the real impact of natural radioactivity on human health, as there is a lack of scientific information for most of the country about this issue. The analysis and comparison of the available information highlights the potential risks linked to natural radioactivity and the need to incorporate suitable environmental management policies about this issue.
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Affiliation(s)
- Richelly da Costa Dantas
- Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Julio Alejandro Navoni
- Programa de Pós-graduação em Desenvolvimento e Meio Ambiente (PRODEMA), Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
- Instituto Federal do Rio Grande do Norte (IFRN), Programa de Pós-graduação em Uso Sustentavel de Recursos Naturais (PPgUSRN), Natal, RN, Brazil
| | - Feliphe Lacerda Souza de Alencar
- Programa de Pós-graduação em Desenvolvimento e Meio Ambiente (PRODEMA), Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
- Departamento de Biologia Celular e Genética, Laboratório de Genética Toxicológica, Universidade Federal do Rio Grande do Norte, Sen. Salgado Filho, Lagoa Nova Natal, RN, CEP 59078-970, Brazil
| | - Luíza Araújo da Costa Xavier
- Departamento de Biologia Celular e Genética, Laboratório de Genética Toxicológica, Universidade Federal do Rio Grande do Norte, Sen. Salgado Filho, Lagoa Nova Natal, RN, CEP 59078-970, Brazil
- Programa de Pós-graduação em Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Viviane Souza do Amaral
- Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.
- Programa de Pós-graduação em Desenvolvimento e Meio Ambiente (PRODEMA), Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.
- Departamento de Biologia Celular e Genética, Laboratório de Genética Toxicológica, Universidade Federal do Rio Grande do Norte, Sen. Salgado Filho, Lagoa Nova Natal, RN, CEP 59078-970, Brazil.
- Programa de Pós-graduação em Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.
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Shi P, Zhou S, Xiao H, Qiu J, Li A, Zhou Q, Pan Y, Hollert H. Toxicological and chemical insights into representative source and drinking water in eastern China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 233:35-44. [PMID: 29053996 DOI: 10.1016/j.envpol.2017.10.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 10/08/2017] [Accepted: 10/08/2017] [Indexed: 05/07/2023]
Abstract
Drinking water safety is continuously threatened by the emergence of numerous toxic organic pollutants (TOPs) in environmental waters. In this study, an approach integrating in vitro bioassays and chemical analyses was performed to explore toxicological profiles of representative source and drinking water from waterworks of the Yangtze River (Yz), Taihu Lake (Th), and the Huaihe River (Hh) basins in eastern China. Overall, 34 of 96 TOPs were detected in all water samples, with higher concentrations in both source and drinking water samples of Hh, and pollutant profiles also differed across different river basins. Non-specific bioassays indicated that source water samples of Hh waterworks showed higher genotoxicity and mutagenicity than samples of Yz and Th. An EROD assay demonstrated dioxin-like toxicity which was detected in 5 of 7 source water samples, with toxin concentration levels ranging from 62.40 to 115.51 picograms TCDD equivalents per liter of water (eq./L). PAHs and PCBs were not the main contributors to observed dioxin-like toxicity in detected samples. All source water samples induced estrogenic activities of 8.00-129.00 nanograms 17β-estradiol eq./L, and estrogens, including 17α-ethinylestradiol and estriol, contributed 40.38-84.15% of the observed activities in examined samples. While drinking water treatments efficiently removed TOPs and their toxic effects, and estrogenic activity was still observed in drinking water samples of Hh. Altogether, this study indicated that the representative source water in eastern China, especially that found in Hh, may negatively affect human health, a finding that demonstrates an urgent requirement for advanced drinking water treatments.
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Affiliation(s)
- Peng Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
| | - Sicong Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Hongxia Xiao
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Aachen 52074, Germany
| | - Jingfan Qiu
- Department of Pathogen Biology, Key Laboratory of Pathogen Biology of Jiangsu Province, Nanjing Medical University, Nanjing 210029, PR China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Yang Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Henner Hollert
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Aachen 52074, Germany; College of Resources and Environmental Science, Chongqing University, Chongqing 400030, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China
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Evaluation of temporary seasonal variation of heavy metals and their potential ecological risk in Nzhelele River, South Africa. OPEN CHEM 2017. [DOI: 10.1515/chem-2017-0033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractSurface water is often used as alternative source of drinking water in many regions of the world where the potable water supply is erratic or not present. The concentration of heavy metals was assessed using an Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES). The impact of temporary seasonal variation on the contamination level was also assessed. Contamination factor (CF) and Hakanson’s potential ecological risk (Er and RI) indices were used to evaluate the toxicity levels of the metals in the sediments of the river. Higher concentrations of Fe, Mn, Pb, Cu and Zn were determined in the dry season in the river water whereas in the sediments higher levels were recorded for Al, Fe, Cd, Cr, Cu and Zn in the wet season. The average CF values for all the metals showed a low contamination level in the sediment, except for Cu and Cd which had moderate and considerable contamination levels, respectively. Similarly, Cu showed a moderate ecological risk level (Er = 62.90) only in March 2014, for other months Cu and the other metals investigated had Er values < 40 which implies low ecological risk. The mean relative abundance of heavy metals in the sediments follows the trend Al>Fe>Mn>u>Zn>Cr>Pb>Cd.
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Verçosa CJ, Moraes Filho AVD, Castro ÍFDA, Santos RGD, Cunha KS, Silva DDME, Garcia ACL, Navoni JA, Amaral VSD, Rohde C. Validation of Comet assay in Oregon-R and Wild type strains of Drosophila melanogaster exposed to a natural radioactive environment in Brazilian semiarid region. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 141:148-153. [PMID: 28340370 DOI: 10.1016/j.ecoenv.2017.03.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 03/15/2017] [Accepted: 03/16/2017] [Indexed: 06/06/2023]
Abstract
Natural radiation of geological origin is a common phenomenon in Brazil, a country where radioactive agents such as uranium may be often found. As an unstable atom, uranium undergoes radioactive decay with the generation of a series of decay by-products, including radon, which may be highly genotoxic and trigger several pathological processes, among which cancer. Because it is a gas, radon may move freely between cracks and gaps in the ground, seeping upwards into the buildings and in the environment. In this study, two Drosophila melanogaster Meigen (Diptera, Drosophilidae) strains called Oregon-R and Wild (collected in a non-radioactive environment) were exposed to atmospheric radiation in the Lajes Pintadas city, in the semiarid zone of northeastern Brazil. After six days of environmental exposure, the organisms presented genetic damage significantly higher than that of the negative control group. The genotoxic effects observed reinforce the findings of other studies carried out in the same region, which warn about the environmental risks related to natural radioactivity occurrence. The results also validate the use of the Comet assay in hemocytes of D. melanogaster as a sensitive test to detect genotoxicity caused by natural radiation, and the use of a recently collected D. melanogaster strain in the environmental of radon.
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Affiliation(s)
- Cícero Jorge Verçosa
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada, Universidade de Pernambuco (UPE), Brazil; Laboratório de Genética, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco (UFPE), Brazil
| | | | - Ícaro Fillipe de Araújo Castro
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada, Universidade de Pernambuco (UPE), Brazil; Laboratório de Genética, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco (UFPE), Brazil
| | - Robson Gomes Dos Santos
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada, Universidade de Pernambuco (UPE), Brazil
| | - Kenya Silva Cunha
- Laboratório de Genética Toxicológica, Universidade Federal de Goiás (UFG), Brazil
| | | | - Ana Cristina Lauer Garcia
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada, Universidade de Pernambuco (UPE), Brazil
| | - Julio Alejandro Navoni
- Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte (UFRN), Brazil
| | - Viviane Souza do Amaral
- Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte (UFRN), Brazil; Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Brazil
| | - Claudia Rohde
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada, Universidade de Pernambuco (UPE), Brazil; Laboratório de Genética, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco (UFPE), Brazil.
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Rambo CL, Zanotelli P, Dalegrave D, De Nez D, Szczepanik J, Carazek F, Franscescon F, Rosemberg DB, Siebel AM, Magro JD. Hydropower reservoirs: cytotoxic and genotoxic assessment using the Allium cepa root model. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:8759-8768. [PMID: 28213707 DOI: 10.1007/s11356-017-8509-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 01/25/2017] [Indexed: 06/06/2023]
Abstract
Hydropower offers a reliable source of electricity in several countries, and Brazil supplies its energy needs almost entirely through hydropower plants. Nevertheless, hydropower plants comprise large buildings and water reservoirs and dams, resulting in huge ecological disruptions. Here, we analyzed the impact of four hydropower reservoirs construction in metals and pesticides incidence and the cytotoxic and genotoxic potential of sediment elutriate of rivers from southern Brazil. Our analyses have evidenced the elevated incidence of different metals (lead, iron, cadmium, and chrome) and pesticides (methyl parathion, atrazine, and 2,4-dichlorophenoxyacetic acid). We showed that Allium cepa exposed to sediment elutriates did not change the seed germination rate and mitotic index. However, roots from Allium cepa exposed to reservoirs sediment elutriates showed increased occurrence of chromosomal aberrations and nuclear abnormalities. Therefore, the results obtained in our study indicate that sediment from reservoirs present elevated concentration of metals and pesticides and a significant genotoxic potential. Taken together, our data support that hydropower reservoirs represent an environmental scenario that could impact surrounding wildlife and population.
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Affiliation(s)
- Cassiano Lazarotto Rambo
- Laboratório de Neuroquímica e Psicofarmacologia, Departamento de Biologia Celular e Molecular, Programa de Pós-Graduação em Biologia Celular e Molecular, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, Porto Alegre, RS, 90619-900, Brazil
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil
| | - Patrícia Zanotelli
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil
| | - Daniela Dalegrave
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil
| | - Dinara De Nez
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil
| | - Jozimar Szczepanik
- Programa de Pós-Graduação em Neurociências, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campus Reitor João David Ferreira Lima. Rua Engenheiro Agronômico Andrei Cristian Ferreira, s/n, Florianópolis, SC, 88040-900, Brazil
| | - Fábio Carazek
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil
| | - Francini Franscescon
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil
| | - Denis Broock Rosemberg
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Anna Maria Siebel
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil.
| | - Jacir Dal Magro
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Avenida Senador Attílio Fontana, 591E, Chapecó, SC, 89809-000, Brazil
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de Melo Gurgel P, Navoni JA, de Morais Ferreira D, do Amaral VS. Ecotoxicological water assessment of an estuarine river from the Brazilian Northeast, potentially affected by industrial wastewater discharge. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 572:324-332. [PMID: 27505265 DOI: 10.1016/j.scitotenv.2016.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 08/01/2016] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
Water pollution generated by industrial effluents discharge is a threat to the maintenance of aquatic ecosystems and human development. The Jundiai River estuarine, located in Northeast Brazil, receives an industrial pretreated effluent load from the city of Macaíba/RN/Brazil. The present study aimed to assess the water quality of this water reservoir through i) physicochemical characterization, ii) quantification of metal concentration and iii) by an ecotoxicological assessment carried out using Mysidopsis juniae and Pomacea lineata. The study was performed throughout the period comprising May to September 2014. Physicochemical variables such as chloride, total solids and electrical conductivity presented values in the waste discharge point, significantly different with those located out of the waste releasing point. Apart from that, metal concentration showed variable behavior throughout the monitored period. Levels of Al, Fe, Cu, Cd, Cr, Ni, Pb and Ag were over the considered guidelines. Both natural and anthropogenic sources seem to be involved in the resulting environmental scenario. A reduction in the fecundity rate (using Mysidopsis juniae) along with an increase in mortality rate (in both species) was observed ratifying the presence of toxic substances in this water reservoir. Moreover, a correlation analysis stated an association of the aforementioned toxicological effects with the delivery of industrial waste products. The ecotoxicological assessment performed highlighted the presence of toxic substance/s in water from the Jundiai River. Especially as a consequence of industrial activity, a fact that might threaten the bioma and, therefore, the human health of the population settled in the studied region.
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Affiliation(s)
- Piatã de Melo Gurgel
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil
| | - Julio Alejandro Navoni
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil
| | - Douglisnilson de Morais Ferreira
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil; Núcleo de Análises de águas, alimentos e efluentes, Instituto Federal de Tecnologia do Rio Grande do Norte (IFRN), Natal, Brazil
| | - Viviane Souza do Amaral
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil.
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