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Braga APA, de Souza LR, Lima MGF, de Moraes Cunha Gonçalves M, Marin-Morales MA. A study on phytogenotoxicity induced by biogenic amines: cadaverine and putrescine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33328-4. [PMID: 38622416 DOI: 10.1007/s11356-024-33328-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/11/2024] [Indexed: 04/17/2024]
Abstract
Among the compounds present in necro-leachate, a liquid released during the process of decomposition of the human body, are the biogenic amines cadaverine and putrescine. Although some studies on necro-leachate have indicated a potential ecotoxicological and public health risk associated with it, the research on this type of contamination is still rather limited. This study presents information about the phytotoxic and cytogenotoxic potential of cadaverine and putrescine, evaluated separately and within a mixture. Phytotoxicity was evaluated through a germination test, the initial growth of seedlings with Lactuca sativa, and cytogenotoxicity through chromosomal aberration and micronucleus tests with Allium cepa. The L. sativa results showed a phytotoxic effect for the evaluated amines, by reducing root (> 90%) and hypocotyl (> 80%) elongation. The co-exposure of cadaverine and putrescine potentiated cytogenotoxic activity by aneugenic action in the meristematic cells of A. cepa. From this result, it is possible to infer the eco-toxicogenic potential of cadaverine and putrescine. This study not only highlights the importance of the phytotoxic and cytogenotoxic effects of these amines but also emphasizes the urgent need for further investigation into contamination originating from cemetery environments. By evaluating the risks associated with necro-leachate, this research is aimed at informing global efforts to protect ecological and public health.
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Affiliation(s)
- Ana Paula Andrade Braga
- Department of Biology, São Paulo State University, Avenue 24-A, P.O Box 178, Rio Claro, São Paulo, 151513506-900, Brazil.
| | - Letícia Rosa de Souza
- Department of Biology, São Paulo State University, Avenue 24-A, P.O Box 178, Rio Claro, São Paulo, 151513506-900, Brazil
| | - Maria Gabriela Franco Lima
- Department of Biology, São Paulo State University, Avenue 24-A, P.O Box 178, Rio Claro, São Paulo, 151513506-900, Brazil
| | | | - Maria Aparecida Marin-Morales
- Department of Biology, São Paulo State University, Avenue 24-A, P.O Box 178, Rio Claro, São Paulo, 151513506-900, Brazil
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2
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de Azevedo APCB, Cardoso TADO, Cohen SC. Could Necroleachate Be the Cemetery's Sewage? A Panorama from Brazilian Legislation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6898. [PMID: 37835168 PMCID: PMC10572417 DOI: 10.3390/ijerph20196898] [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: 08/24/2023] [Revised: 09/22/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023]
Abstract
Cemeteries can be compared to landfills, as the leachate produced in these areas, also known as necroleachate, can be environmentally transported, polluting groundwater, surface water, and soil. In Brazil, to ensure no negative environmental impacts and public health risks, cemetery management is the responsibility of states and municipalities. In this context, this article aims to discuss Brazilian sanitary-environmental legislation concerning cemetery waste management. Only half of all Brazilian states have established sanitary-environmental cemetery legislation, and only 19 municipalities have specific laws. These laws, however, are broad and contain many gaps. Necroleachate care and control require both sanitary and environmental assessments to avoid environmental vulnerability and contamination risks for populations inhabiting surrounding areas. In this regard, new water analysis parameters in environmentally vulnerable areas should be established to control the population's drinking water quality, such as the detection of C. perfringens. Furthermore, the construction of vertical cemeteries instead of horizontal ones and the adoption of cremation procedures should also be considered. This assessment comprises a novel research framework, as no studies on the impact of Brazilian laws on environmental necroleachate contamination are available to date.
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Affiliation(s)
| | | | - Simone Cynamon Cohen
- Sanitation and Environmental Health Department, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro 21041-210, Brazil;
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3
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Saba ED, Saba JM, Mendes TA, de Oliveira AE. Evaluating the impact of a cemetery on groundwater by multivariate analysis. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:270. [PMID: 36607465 PMCID: PMC9817448 DOI: 10.1007/s10661-022-10895-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Water analyses in conjunction with hydrological and geotechnical investigations were carried out to assess the potential for groundwater contamination from the decomposition of buried human bodies. Water samples were collected from 2007 to 2018 in three monitoring wells built within the cemetery area. Water quality was evaluated based on the determination of 25 analytical parameters (20 physical-chemical and 5 microbiological). Laboratory data reported by the local sewage water company for water collected in household cisterns located outside the cemetery area were also evaluated. Multivariate analysis showed a similar pattern between iron content, turbidity, and rainfall data collected at the rainfall station closest to the study area. This behavior is a direct consequence of soil leaching (oxisol). The physical characterization of the soil of the unsaturated area above the aquifer indicates that the absorption of body waste by the soil is favored, preventing surface contaminants from reaching the aquifer. This work also found that the water samples collected outside the cemetery area do not comply with the Brazilian limits for drinking water. In conclusion, water samples collected from monitoring wells located within the cemetery area have little to none impact on both subsurface and underground contamination.
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Affiliation(s)
- Elias D. Saba
- QUINOSAN, Laboratório Químico Ltd, SIG Qd 1, Lt. 495, Ed. Barao do Rio Branco, loja 07, Brasília, DF 70610-410 Brazil
| | - Jordana M. Saba
- QUINOSAN, Laboratório Químico Ltd, SIG Qd 1, Lt. 495, Ed. Barao do Rio Branco, loja 07, Brasília, DF 70610-410 Brazil
| | - Thiago A. Mendes
- Civil and Environmental Engineering Department, IFG, Av. Universitária Vereador Vagner da Silva Ferreira, Aparecida de Goiânia, GO 74968-755 Brazil
| | - Anselmo E. de Oliveira
- Laboratory of Theoretical and Computational Chemistry, Chemistry Department, UFG, Goiânia, GO 74690-900 Brazil
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van Wyk Y, Ubomba-Jaswa E, Dippenaar MA. Potential SARS-CoV-2 contamination of groundwater as a result of mass burial: A mini-review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155473. [PMID: 35469872 PMCID: PMC9033295 DOI: 10.1016/j.scitotenv.2022.155473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/02/2022] [Accepted: 04/19/2022] [Indexed: 05/04/2023]
Abstract
The recent COVID-19 disease has highlighted the need for further research around the risk to human health and the environment because of mass burial of COVID-19 victims. Despite SARS-CoV-2 being an enveloped virus, which is highly susceptible to environmental conditions (temperature, solar/UV exposure). This review provides insight into the potential of SARS-CoV-2 to contaminate groundwater through burial sites, the impact of various types of burial practices on SARS-CoV-2 survival, and current knowledge gaps that need to be addressed to ensure that humans and ecosystems are adequately protected from SARS-CoV-2. Data available shows temperature is still likely to be the driving factor when it comes to survival and infectivity of SARS-CoV-2. Research conducted at cemetery sites globally using various bacteriophages (MS2, PRD1, faecal coliforms) and viruses (TGEV, MHV) as surrogates for pathogenic enteric viruses to study the fate and transport of these viruses showed considerable contamination of groundwater, particularly where there is a shallow vadose zone and heterogeneous structures are known to exist with very low residence times. In addition, changes in solution chemistry (e.g., decrease in ionic strength or increase in pH) during rainfall events produces large pulses of released colloids that can result in attached viruses becoming remobilised, with implications for groundwater contamination. Viruses cannot spread unaided through the vadose zone. Since groundwater is too deep to be in contact with the interred body and migration rates are very slow, except where preferential flow paths are known to exist, the groundwater table will not be significantly impacted by contamination from SARS-CoV-2. When burial takes place using scientifically defensible methods the possibility of infection will be highly improbable. Furthermore, the SARS-CoV-2 pandemic has helped us to prepare for other eventualities such as natural disasters where mass fatalities and subsequently burials may take place in a relatively short space of time.
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Affiliation(s)
- Yazeed van Wyk
- Water Research Commission, Private Bag X03, Gezina, 0031, South Africa; Department of Geology, University of Pretoria, Private Bag X20 Hatfield, Pretoria 0028, South Africa
| | | | - Matthys Alois Dippenaar
- Department of Geology, University of Pretoria, Private Bag X20 Hatfield, Pretoria 0028, South Africa
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5
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Ojo OA, Oyelami CA, Fakunle MA, Ogundana AK, Ajayi OE, Uche TE. Integrated approach to unsaturated zone characterization as it relates to burial practices and its impact on the immediate environment. Heliyon 2022; 8:e09831. [PMID: 35815137 PMCID: PMC9260632 DOI: 10.1016/j.heliyon.2022.e09831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/08/2021] [Accepted: 06/24/2022] [Indexed: 11/25/2022] Open
Abstract
Improper sitting positioning of cemeteries in Nigeria is mostly responsible for groundwater pollution. Poor water quality may lead to some communicable diseases in most rural and urban areas of the southwestern part of Nigeria. The environmental impact of cemeteries close to residential areas within the Edunabon metropolis, southwestern part of Nigeria, was assessed. The research is aimed to understand the impact (if any) of the cemetery on the quality of water and soil within the vicinity and to investigate the suitability of soil materials underlying the cemetery as a special lining material. An integrated approach using geotechnical characterization, vertical electrical sounding and groundwater quality assessment was used in the present study. The geotechnical test involved six bulk undisturbed soil samples taken from two borrow pits within the cemetery. Index property tests (grain size distribution, specific gravity, natural moisture content, and Atterberg limits), engineering property tests (compaction test), X-ray diffraction, and X-ray fluorescence tests were carried out on the soil samples with their porosities and permeability estimated according to BS 1377. The majority of the study area is a wetland with a topography that descends into a gaining stream around 10 m from the cemetery. The soil of the cemetery is made up of coarse-grained porous lateritic soil, clay, and silt (0.22–3.88 percent), with a significant amount of gravel/sand (73.50–83.96 percent). Except in the control well, water analysis revealed a high total coliform concentration of 14–89 and a total hardness of 86–380 mg/L. When compared to the World Health Organization (WHO) drinking water standard and the Nigerian drinking water standard, the majority of cation concentrations were greater than the safe limits. The depth to contamination correlates to the depth of the aquifer in the research region, according to the results of electrical resistivity. Because of the narrow unsaturated zone, the study found that the position of the cemetery has a high risk of environmental impact on its near vicinity.
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Affiliation(s)
- Olabanji A. Ojo
- Department of Geological Sciences, Osun State University, Osogbo, Nigeria
| | - Charles A. Oyelami
- Department of Geology, Federal University, Oye, Nigeria
- Corresponding author.
| | - Mutiu A. Fakunle
- Department of Physics, Osun State University, Osogbo, PMB 4494, Oke-Baale, Osogbo, Nigeria
| | | | - Oluwole E. Ajayi
- Department of Geological Sciences, Osun State University, Osogbo, Nigeria
| | - Tochukwu E. Uche
- Department of Geological Sciences, Osun State University, Osogbo, Nigeria
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6
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Determination of Empirical Environmental Indices for the Location of Cemeteries—An Innovative Proposal for Worldwide Use. SUSTAINABILITY 2022. [DOI: 10.3390/su14106284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cemeteries are a source of environmental contamination, as they hold hundreds of human corpses in different stages of decomposition. Therefore, the current research developed a new tool, which is easily applied, to determine the potential environmental contamination generated by current cemeteries within their ecosystems. The linear equations developed, with a number of variables between 10 and 3, allow for obtaining empirical indices to evaluate the suitability of a site, regardless of the geographical area in which it is located, through a variety of sources. In order to obtain the equations and, therefore, the indices, a hierarchy was performed using the Saaty matrix. With such a matrix, different ranges of affectation were established for each variable and relative values were assigned that cover all probabilities quantitatively, from the least probable to the most likely. With the linear equations, three verification runs were conducted, obtaining satisfactory results compared with the location map of cemeteries obtained in previous studies. These equations will constitute a tool of fundamental use for local governments, which will allow for the evaluation of existing cemeteries and use of the methodology described in preliminary analysis, to save resources and have a starting point for an efficient land use plan.
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7
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Proposal of an Initial Environmental Management and Land Use for Critical Cemeteries in Central Ecuador. SUSTAINABILITY 2022. [DOI: 10.3390/su14031577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cemeteries are sites for the final disposal of human bodies that constitute a source of contamination of soil and water as a result of the cadaveric decomposition generated. The current research performed an initial study on the contamination of soil and water due to the influence of cemeteries and verified compliance with the legislation regulating land use and occupation of Central Ecuador (PUGS) with the aim of proposing an environmental and territorial solution to the problems generated by the mismanagement of cemeteries, through the physicochemical analysis of soil and water and studies of land use compatibility. The results indicate the tendency of contamination caused by the studied cemeteries, since the samples taken in both the rainy and dry season for the measurement of parameters BOD5, COD, DO, pH and electrical conductivity fail to meet the established requirements of the Ecuadorian and international environmental regulations. In addition, land use conflicts were encountered in the cemetery grounds. It is concluded that the existing cemeteries should be subjected to more detailed environmental analysis and subsequently should be treated as security landfills in the closure and post-closure stage. Also, it has been concluded that the cemeteries should not be located in urban or peri-urban areas.
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Ferreira FGDS, Caetano CV, Navis CN, Silva ALP, Varela Júnior JDJG. Detection of cadaverine and putrescine on (10,0) carbon, boron nitride and gallium nitride nanotubes: a density functional theory study. NEW J CHEM 2022. [DOI: 10.1039/d2nj02732a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This work presents a theoretical study of the interaction between carbon nanotubes (CNT), boron nitride nanotubes and gallium nitride nanotubes with pollutant diamines cadaverine and putrescine using density functional theory (DFT) implemented using SIESTA.
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Affiliation(s)
| | | | | | - Adilson Luís Pereira Silva
- Universidade Federal do Maranhão, 65080-805, São Luís, MA, Brazil
- Universidade Estadual do Maranhão, 65055-310, São Luís, MA, Brazil
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9
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Gonçalves LR, Roberto MM, Braga APA, Barozzi GB, Canizela GS, de Souza Gigeck L, de Souza LR, Marin-Morales MA. Another casualty of the SARS-CoV-2 pandemic-the environmental impact. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:1696-1711. [PMID: 34689297 PMCID: PMC8542190 DOI: 10.1007/s11356-021-17098-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/13/2021] [Indexed: 05/20/2023]
Abstract
Cemetery leachate generated by the process of cadaveric decomposition is a significant contaminant of several matrices in the cemetery environment (soil, groundwater, and surface water). The biogenic amines cadaverine and putrescine stand out among the cemetery leachate contaminants, since they are potentially carcinogenic compounds. This review article presents a discussion of possible environmental impacts caused by the increase in deaths resulting from COVID-19 as its central theme. The study also aims to demonstrate the importance of considering, in this context, some climatic factors that can alter both the time of bodily decomposition and the longevity of the virus in the environment. Additionally, some evidence for the transmission of the virus to health professionals and family members after the patient's death and environmental contamination after the burial of the bodies will also be presented. Several sources were consulted, such as scientific electronic databases (NCBI), publications by government agencies (e.g., ARPEN, Brazil) and internationally recognized health and environmental agencies (e.g., WHO, OurWorldInData.org), as well as information published on reliable websites available for free (e.g., CNN) and scientific journals related to the topic. The data from this study sounds the alarm on the fact that an increase in the number of deaths from the complications of COVID-19 has generated serious environmental problems, resulting from Cemetery leachate.
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Affiliation(s)
- Letícia Rocha Gonçalves
- Institute of Biosciences, Department of Biology, São Paulo State University (Unesp), Av. 24-A, 1515, Rio Claro, SP, CEP: 13506-900, Brazil.
| | - Matheus Mantuanelli Roberto
- Hermínio Ometto Foundation's University Center (FHO), Av. Dr. Maximiliano Baruto, 500 - Jardim Universitário, Araras, SP, CEP: 13607-339, Brazil
| | - Ana Paula Andrade Braga
- Institute of Biosciences, Department of Biology, São Paulo State University (Unesp), Av. 24-A, 1515, Rio Claro, SP, CEP: 13506-900, Brazil
| | - Gabriel Bertoletti Barozzi
- Institute of Biosciences, Department of Biology, São Paulo State University (Unesp), Av. 24-A, 1515, Rio Claro, SP, CEP: 13506-900, Brazil
| | - Giovanna Segati Canizela
- Institute of Biosciences, Department of Biology, São Paulo State University (Unesp), Av. 24-A, 1515, Rio Claro, SP, CEP: 13506-900, Brazil
| | - Letícia de Souza Gigeck
- Institute of Biosciences, Department of Biology, São Paulo State University (Unesp), Av. 24-A, 1515, Rio Claro, SP, CEP: 13506-900, Brazil
| | - Letícia Rosa de Souza
- Institute of Biosciences, Department of Biology, São Paulo State University (Unesp), Av. 24-A, 1515, Rio Claro, SP, CEP: 13506-900, Brazil
| | - Maria Aparecida Marin-Morales
- Institute of Biosciences, Department of Biology, São Paulo State University (Unesp), Av. 24-A, 1515, Rio Claro, SP, CEP: 13506-900, Brazil.
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10
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Vithanage M, Mayakaduwage SS, Gunarathne V, Rajapaksha AU, Ahmad M, Abduljabbar A, Usman A, Al-Wabel MI, Ippolito JA, Ok YS. Animal carcass burial management: implications for sustainable biochar use. APPLIED BIOLOGICAL CHEMISTRY 2021; 64:91. [PMID: 34957350 PMCID: PMC8693145 DOI: 10.1186/s13765-021-00652-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/16/2021] [Indexed: 06/02/2023]
Abstract
This review focuses on existing technologies for carcass and corpse disposal and potential alternative treatment strategies. Furthermore, key issues related to these treatments (e.g., carcass and corpse disposal events, available methods, performances, and limitations) are addressed in conjunction with associated environmental impacts. Simultaneously, various treatment technologies have been evaluated to provide insights into the adsorptive removal of specific pollutants derived from carcass disposal and management. In this regard, it has been proposed that a low-cost pollutant sorbent may be utilized, namely, biochar. Biochar has demonstrated the ability to remove (in)organic pollutants and excess nutrients from soils and waters; thus, we identify possible biochar uses for soil and water remediation at carcass and corpse disposal sites. To date, however, little emphasis has been placed on potential biochar use to manage such disposal sites. We highlight the need for strategic efforts to accurately assess biochar effectiveness when applied towards the remediation of complex pollutants produced and circulated within carcass and corpse burial systems.
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Affiliation(s)
- Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250 Sri Lanka
| | - S. S. Mayakaduwage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250 Sri Lanka
- School of Agriculture, Food and Wine, University of Adelaide, Adelaide, Australia
| | - Viraj Gunarathne
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250 Sri Lanka
| | - Anushka Upamali Rajapaksha
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250 Sri Lanka
| | - Mahtab Ahmad
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Adel Abduljabbar
- Industrial Psychology, College of Education, King Saud University, Riyadh, Saudi Arabia
| | - Adel Usman
- Soil Sciences Department, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad I. Al-Wabel
- Soil Sciences Department, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - James A. Ippolito
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO USA
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management and Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841 South Korea
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11
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Marsoof A. The Disposal of COVID-19 Dead Bodies: Impact of Sri Lanka's Response on Fundamental Rights. JOURNAL OF HUMAN RIGHTS PRACTICE 2021; 13:669-689. [PMID: 35432600 PMCID: PMC8992289 DOI: 10.1093/jhuman/huab030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In early 2020, the Government of Sri Lanka decided that all bodies of individuals who had (or were suspected to have) died of COVID-19 should be disposed of by cremation alone. Although this decision appears to be neutral and does not give rise to de jure discrimination, as a matter of fact, it has significantly impacted the religious rights of the Muslim community in Sri Lanka. This is because they firmly believe in the need to bury the dead in a dignified and decent manner-cremation being regarded as a repugnant practice amounting to a desecration of the human body. As such, the Sri Lankan Government's decision to adopt a cremation-only policy interfered with the right of all Sri Lankan Muslims to manifest their religion or belief as guaranteed by the 1978 Constitution of Sri Lanka. Despite there being no scientific evidence to suggest that the burial of COVID-19 victims could give rise to contamination of the surroundings and thereby cause the spread of the virus, the Government of Sri Lanka continued with the policy for almost a whole year. Thereafter, due to international pressure, the Sri Lankan Government decided to allow burials but in a very restrictive manner. The objective of this article is to consider the extent to which the aforementioned decisions of the Sri Lankan Government are consistent with the fundamental rights framework of the country's Constitution.
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12
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Various Natural and Anthropogenic Factors Responsible for Water Quality Degradation: A Review. WATER 2021. [DOI: 10.3390/w13192660] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recognition of sustainability issues around water resource consumption is gaining traction under global warming and land utilization complexities. These concerns increase the challenge of gaining an appropriate comprehension of the anthropogenic activities and natural processes, as well as how they influence the quality of surface water and groundwater systems. The characteristics of water resources cause difficulties in the comprehensive assessment regarding the source types, pathways, and pollutants behaviors. As the behavior and prediction of widely known contaminants in the water resources remain challenging, some new issues have developed regarding heavy metal pollutants. The main aim of this review is to focus on certain essential pollutants’ discharge from anthropogenic activities categorized based on land-use sectors such as industrial applications (solid/liquid wastes, chemical compounds, mining activities, spills, and leaks), urban development (municipal wastes, land use practices, and others), and agricultural practices (pesticides and fertilizers). Further, important pollutants released from natural processes classified based on climate change, natural disasters, geological factors, soil/matrix, and hyporheic exchange in the aquatic environment, are also discussed. Moreover, this study addresses the major inorganic substances (nitrogen, fluoride, and heavy metals concentrations). This study also emphasizes the necessity of transdisciplinary research and cross-border communication to achieve sustainable water quality using sound science, adaptable legislation, and management systems.
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13
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Wijaya AN, Margiana R, Kusumaningtyas S, Furqonita D. Comparison of decomposition rate of hind limbs of preserved mice with ethanol-glycerin and formaldehyde of advanced fixative solution. Anat Cell Biol 2021; 54:225-231. [PMID: 33767018 PMCID: PMC8225480 DOI: 10.5115/acb.20.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/22/2021] [Accepted: 02/22/2021] [Indexed: 12/03/2022] Open
Abstract
Learning anatomy in medical school is still closely based on the use of cadavers. The burial of preserved cadaver poses a problem, specifically, it contaminates the soil with formalin. Many studies have been conducted to find an alternative fixative to update or modify formalin usage. One of them is ethanol-glycerin (EG), which suggests promising results. Despite that fact, there has yet to be any research comparing the decomposition rate between EG and formalin. This study is conducted to compare the rate of decomposition between the two fixative solutions, EG and 4% formalin on the hind limb of mice. The mice were first preserved using a standard primary fixative solution which is 10% formalin, following that procedure is preservation using advanced fixative solution, EG or 4% formalin. Upon completing the preservation steps, the mice were buried for 6 weeks and observed weekly. The stages of decomposition were assessed semi-quantitatively depending on its appearance. The hind limbs of mice that were fixed with EG solution managed to reach the last stage of decomposition, dry & remains, while the 4% formalin group of mice still remained in the previous stage, advanced decay. It is concluded that the mice hind limbs that have been previously preserved with EG advanced fixative solution has a faster decomposition rate compared to 4% formalin.
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Affiliation(s)
- Amanda Natalie Wijaya
- Undergraduate Program of Medical Education, Faculty of Medicine, Universitas Indonesia, Jakarta
| | - Ria Margiana
- Department of Anatomy, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | | | - Deswaty Furqonita
- Department of Anatomy, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
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14
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Gwenzi W. Autopsy, thanatopraxy, cemeteries and crematoria as hotspots of toxic organic contaminants in the funeral industry continuum. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:141819. [PMID: 33207461 DOI: 10.1016/j.scitotenv.2020.141819] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/18/2020] [Accepted: 08/18/2020] [Indexed: 05/06/2023]
Abstract
The occurrence and health risks of toxic organic contaminants (TOCs) in the funeral industry are relatively under-studied compared to other industries. An increasing body of literature reports TOCs including emerging contaminants in the funeral industry, but comprehensive reviews of the evidence are still lacking. Hence, evidence was analysed to address the proposition that, the funeral industry constitutes several hotspot reservoirs of a wide spectrum of TOCs posing ecological and human health risks. TOCs detected include embalming products, persistent organic pollutants, synthetic pesticides, pharmaceuticals, personal care products and illicit drugs. Human cadavers, solid wastes, wastewaters and air-borne particulates from autopsy, thanatopraxy care facilities (mortuaries, funeral homes), cemeteries and crematoria are hotspots of TOCs. Ingestion of contaminated water, and aquatic and marine foods constitutes non-occupational human exposure, while occupational exposure occurs via inhalation and dermal intake. Risk factors promoting exposure to TOCs include unhygienic burial practices, poor solid waste and wastewater disposal, and weak and poorly enforced regulations. The generic health risks of TOCs are quite diverse, and include; (1) genotoxicity, endocrine disruption, teratogenicity and neurodevelopmental disorders, (2) development of antimicrobial resistance, (3) info-disruption via biomimicry, and (4) disruption of ecosystem functions and trophic interactions. Barring formaldehyde and inferential evidence, the epidemiological studies linking TOCs in the funeral industry to specific health outcomes are scarce. The reasons for the lack of evidence, and limitations of current health risk assessment protocols are discussed. A comprehensive framework for hazard identification, risk assessment and mitigation (HIRAM) in the funeral industry is proposed. The HIRAM includes regulatory, surveillance and control systems such as prevention and removal of TOCs. Future directions on the ecotoxicology of mixtures, behaviour, and health risks of TOCs are highlighted. The opportunities presented by emerging tools, including isotopic labelling, genomics, big data analytics (e.g., machine learning), and in silico techniques in toxicokinetic modelling are highlighted.
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Affiliation(s)
- Willis Gwenzi
- Biosystems and Environmental Engineering Research Group, Department of Soil Science and Agricultural Engineering, Faculty of Agriculture, University of Zimbabwe, P.O. Box MP167, Mount Pleasant, Harare, Zimbabwe.
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15
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Gwenzi W. The 'thanato-resistome' - The funeral industry as a potential reservoir of antibiotic resistance: Early insights and perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 749:141120. [PMID: 32836113 PMCID: PMC7381411 DOI: 10.1016/j.scitotenv.2020.141120] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/18/2020] [Accepted: 07/18/2020] [Indexed: 05/03/2023]
Abstract
The funeral industry is a potential reservoir of antibiotic resistance. The occurrence, human exposure and health risks of antibiotic resistance in the funeral industry were examined. The funeral industry harbours antibiotic resistance to multiple common and last-resort antibiotics, hence constitutes the 'thanato-resistome'. Hydrological processes, air-borne particulates and vectors disseminate antibiotic resistance, while horizontal gene transfer circulates antibiotic resistance among resistomes, forming a complex network. Ingestion, inhalation of air-borne particulates, dermal intake and clothes of workers contribute to human exposure. Human health risks include; development of drug resistance in previously susceptible pathogens, and increased morbidity and mortality caused by increased pathogenicity and outbreaks of multi-drug resistant infections. Ecological risks include the proliferation of resistant organisms at the expense of susceptible ones, thereby disrupting ecosystem structure and function, including biogeochemical cycles. Barring inferential data, quantitative evidence linking antibiotic resistance to human infections is weak. This reflects the lack of systematic quantitative studies, rather than the absence of such health risks. Quantitative risk assessment is constrained by lack of quantitative data on antibiotic resistance in various reservoirs and exposure routes. A framework for risk assessment and mitigation is proposed. Finally, ten hypotheses and emerging tools such as genomics, in silico techniques and big data analytics are highlighted.
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Affiliation(s)
- Willis Gwenzi
- Biosystems and Environmental Engineering Research Group, Department of Soil Science and Agricultural Engineering, Faculty of Agriculture, University of Zimbabwe, P.O. Box MP167, Mount Pleasant, Harare, Zimbabwe.
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16
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Perspectives on the establishment of a canadian human taphonomic facility: The experience of REST[ES]. Forensic Sci Int Synerg 2020; 2:287-292. [PMID: 33083775 PMCID: PMC7554357 DOI: 10.1016/j.fsisyn.2020.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/02/2020] [Accepted: 09/02/2020] [Indexed: 12/14/2022]
Abstract
REST[ES] is the first Canadian human taphonomic facility (HTF) dedicated to research and training relating to human decomposition in a northern temperate climate. The following paper outlines the measures taken to successfully establish, open and operate this novel Canadian HTF with particular focus on: project team and partnerships, facility location, approvals and permits, infrastructure and social acceptability. It is intended that our experience of establishing REST[ES] may serve as an example to help others with the establishment of future HTFs, thus contributing to the expansion in the global accessibility to human decomposition research and training. Establishment experience of REST[ES]. Difficulties with government approbations. Facility infrastructure, health and security measures. Body donation program and requirements. Social acceptability initiatives.
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Abstract
This paper applies social justice frameworks to "cemetery systems," which here denotes the framework by which each nation state orders the disposal of the dead, and which generally includes burial, cremation and the interment or scattering of cremated remains. An application of social justice theory indicates the desirability of certain key principles for all cemetery systems: decent disposal as a human right; democratic accountability; equality of access to services regardless of income; freedom of religious expression; and environmental sustainability. Achieving these principles is not necessarily straightforward, and conflict between principles is heightened by financialization and population densification.
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Affiliation(s)
- Julie Rugg
- Social Policy and Social Work, University of York, Heslington, UK
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18
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Abia ALK, Alisoltani A, Ubomba-Jaswa E, Dippenaar MA. Microbial life beyond the grave: 16S rRNA gene-based metagenomic analysis of bacteria diversity and their functional profiles in cemetery environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 655:831-841. [PMID: 30481710 DOI: 10.1016/j.scitotenv.2018.11.302] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 05/20/2023]
Abstract
Recent studies have identified cemeteries as potential environmental reservoirs of multi-drug resistant pathogenic bacteria that could contaminate groundwater sources posing public health threats. However, these findings were based on the identification of culturable bacteria and at times not below burial grounds. Investigation on the bacterial diversity and functional profiles of bacterial communities above and below burial grounds in human cemeteries are few. The current study used high-throughput sequencing techniques to determine the bacterial composition and their associated functional profiles in cemetery soil samples collected at the surface and below burial ground in two South African cemeteries (Maitland Cemetery in Cape Town and Fontein Street Cemetery in Middelburg) to evaluate the potential health threat to surrounding populations through contamination of groundwater. Significant differences were observed between sample depths with the clustering of the surface (0 m) and the 2 m samples into separate groups. Pseudomonas and Corynebacterium were the most abundant genera across all samples. Pseudomonas and Rhodococcus were the dominant genera in the 2 m samples while Prauserella and Staphylococcus were dominant in the surface samples. The 2 m samples showed a lower alpha diversity but recorded higher proportions of human diseases functional classes compared to the surface samples. Human disease functional profiles revealed involvement, in infectious (cholera), neurodegenerative (Alzheimer's disease) cardiovascular (hypertrophic cardiomyopathy) immune system (Systemic lupus erythematosus) metabolic (Type I & II diabetes) diseases and cancer. Antibiotic resistance and antibiotics synthesis signatures were also identified. Thus, cemeteries could be potential sources of microbial and antibiotic pollution in groundwater, especially in areas with shallow water tables such as Maitland. Selection of sites for use as cemeteries should, therefore, require a proper understanding of the hydrogeological characteristics of the selected site. However, further studies are required to trace the actual movement of these pollutants into groundwater resources.
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Affiliation(s)
- Akebe Luther King Abia
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
| | - Arghavan Alisoltani
- Institute of Infectious Disease and Molecular Medicine and Department of Pathology, Division of Medical Virology, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - Eunice Ubomba-Jaswa
- Water Research Commission, Private Bag X03 Gezina, Pretoria 0031, South Africa; Department of Biotechnology, University of Johannesburg, Doornfontein, Johannesburg 2094, South Africa.
| | - Matthys Alois Dippenaar
- Engineering Geology and Hydrogeology, Department of Geology, University of Pretoria, Pretoria 0028, South Africa.
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Abia ALK, Ubomba-Jaswa E, Schmidt C, Dippenaar MA. Where Did They Come from-Multi-Drug Resistant Pathogenic Escherichia coli in a Cemetery Environment? Antibiotics (Basel) 2018; 7:antibiotics7030073. [PMID: 30110918 PMCID: PMC6164573 DOI: 10.3390/antibiotics7030073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/01/2018] [Accepted: 08/10/2018] [Indexed: 12/17/2022] Open
Abstract
Human burial in cemeteries facilitates the decomposition of corpses without posing a public health danger. However, the role of cemeteries as potential environmental reservoirs of drug-resistant pathogens has not been studied. Thus, we investigated cemeteries as potential environmental reservoirs of multi-drug resistant (MDR) pathogenic Escherichia coli. E. coli isolates were obtained from water samples (collected from surface water bodies and boreholes in three cemeteries) after isolation using the Colilert® 18 system. Pathogenic potentials of the isolates were investigated using real-time polymerase chain reactions targeting seven virulence genes (VGs) pertaining to six E. coli pathotypes. The resistance of isolates to eight antibiotics was tested using the Kirby–Bauer disc diffusion method. The mean E. coli concentrations varied from <1 most probable number (MPN)/100 mL to 2419.6 MPN/100 mL with 48% of 100 isolates being positive for at least one of the VGs tested. Furthermore, 87% of the isolates were resistant to at least one of the antibiotics tested, while 72% of the isolates displayed multi-drug resistance. Half of the MDR isolates harboured a VG. These results suggest that cemeteries are potential reservoirs of MDR pathogenic E. coli, originating from surrounding informal settlements, which could contaminate groundwater if the cemeteries are in areas with shallow aquifers.
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Affiliation(s)
- Akebe Luther King Abia
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
| | - Eunice Ubomba-Jaswa
- Water Research Commission, Private Bag X03 Gezina, Pretoria 0031, South Africa.
- Department of Biotechnology, University of Johannesburg, Doornfontein, Johannesburg 2094, South Africa.
| | - Chantelle Schmidt
- Engineering Geology and Hydrology, Department of Geology, University of Pretoria, Pretoria 0084, South Africa.
| | - Matthys Alois Dippenaar
- Engineering Geology and Hydrology, Department of Geology, University of Pretoria, Pretoria 0084, South Africa.
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Fiedler S, Dame T, Graw M. Do cemeteries emit drugs? A case study from southern Germany. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:5393-5400. [PMID: 29209976 DOI: 10.1007/s11356-017-0757-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 11/14/2017] [Indexed: 06/07/2023]
Abstract
The risk of earth burials for the environment and public health is a matter of controversial debate. The aim of the present study is to characterise the drainage of cemeteries with regard to the concentration of a number of pharmaceuticals and to the soil's hydrochemical properties, and to discuss these data in comparison with data obtained for surface waters located upstream of the cemeteries. Of the 12 drainage samples analysed using LC-ESI-MS/MS, seven contained carbamazepine (< 225 ng l-1), five contained hydrochlorothiazide, one contained metoprolol (23 ng l-1) and one contained traces of ibuprofen. The surface water samples contained a larger number of different drugs (8 of the 12 drugs under investigation) and higher concentrations (e.g. metropolol 2230 ng l-1). The NO3, NH4, PO4 and DOC concentrations and the electrical conductivity of the cemetery drainages were in several samples higher than those of the surface water samples. The NO3 and NH4 concentrations exceeded the legal contaminant limits of drinking water in only one case. The present study found that the release of drugs and nutrients from cemeteries, measured in surface water drug loads, presents a low environmental risk. However, the study is only a snapshot and long-term monitoring of cemetery drainages, including a broad range of pharmaceuticals and detailed hydrological investigations, will have to be carried out before more substantiated statements can be made.
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Affiliation(s)
- Sabine Fiedler
- Institute for Geography, Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 21, 55099, Mainz, Germany.
| | - Torsten Dame
- Forensisches Toxikologisches Centrum - FTC, Munich, Germany
| | - Matthias Graw
- Institute of Forensic Medicine, University of Munich, Munich, Germany
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21
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da Cruz NJT, Lezana ÁGR, Freire Dos Santos PDC, Santana Pinto IMB, Zancan C, Silva de Souza GH. Environmental impacts caused by cemeteries and crematoria, new funeral technologies, and preferences of the Northeastern and Southern Brazilian population as for the funeral process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:24121-24134. [PMID: 28884230 DOI: 10.1007/s11356-017-0005-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Abstract
Cemeteries and crematoria are the main funeral ways used in the world nowadays. It is a little-studied segment in the present days, mainly as for the possible environmental impacts in the environment, such as those derived from dental amalgam, prostheses, and dioxins, among other. This article aimed to identify the environmental impacts caused by cemeteries and crematoria and to point out new trends in funeral processes such as freeze-drying and alkaline hydrolysis. The study is justified due to the large part of the Brazilian population that do not know the environmental impacts caused by cemeteries and crematoria, as well as to bring information about the new processes. For that, a research was carried out with 400 people. The main results show that among all the funeral processes, the new freeze-drying process was opted by 33% of the sample. We also identified that the main reasons for choosing the funeral process were less environmental impact (28%), no after-death expenses (grave payment) (16.1%), and the possibility of putting away or throwing away the remains wherever you want (14.9%). Finally, new funeral processes were well accepted by the Brazilian population-those who were interviewed-due to their benefits.
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Affiliation(s)
- Nicholas Joseph Tavares da Cruz
- Universidade Federal de Santa Catarina (UFSC), Campus Universitário Reitor João David F. Lima, Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Álvaro Guillermo Rojas Lezana
- Universidade Federal de Santa Catarina (UFSC), Campus Universitário Reitor João David F. Lima, Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Paulo da Cruz Freire Dos Santos
- Universidade Federal de Alagoas (UFAL), Avenida Lourival Melo Mota, s/n, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
| | | | - Claudio Zancan
- Universidade Federal de Alagoas (UFAL), Avenida Lourival Melo Mota, s/n, Tabuleiro dos Martins, Maceió, AL, 57072-970, Brazil
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Saad TC. The Moral Inadequacy of Cremation. New Bioeth 2017; 23:249-260. [PMID: 29058571 DOI: 10.1080/20502877.2017.1387388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cremation has substantial practical benefits. Not only is it much cheaper than traditional burial, but it also comes without its ecological burden. Despite this, we argue that cremation is an inadequate way of disposing of the dead because it entails the destruction of community memory, and, by extension, community and individual identity. It deprives the living of these benefits, while also treating the dead in way which goes against common intuitions about personhood, anthropology and respect for the will of the deceased. Death is perhaps one of the most important subjects in philosophy, and by marginalising it through cremation and related practices, we deprive ourselves of its didactic and social uses. The case we make against cremation is not absolute, but we hope it succeeds in casting doubt on the presumed neutrality of cremation. Our essay is under three heads: (1) we consider the practical benefits of cremation; (2) we reconsider the value of cremation in light of what it deprives individuals and communities of and; (3) we analyse the significance of the corpse in regard to cremation.
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Affiliation(s)
- Toni C Saad
- a School of Medicine , Cardiff University , Cardiff , UK
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23
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Paíga P, Delerue-Matos C. Determination of pharmaceuticals in groundwater collected in five cemeteries' areas (Portugal). THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 569-570:16-22. [PMID: 27328395 DOI: 10.1016/j.scitotenv.2016.06.090] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/13/2016] [Accepted: 06/13/2016] [Indexed: 05/07/2023]
Abstract
There are growing public attention and concern about the possibility of ecosystem and human health effects from pharmaceuticals in environment. Several types of environmental samples were target of studies by the scientific community, namely drinking water, groundwater, surface water (river, ocean), treated water (influent and effluent), soils, and sediments near to Wastewater Treatment Plants or near to others potential sources of contaminations. Normally, studies in the cemeteries areas are for historical and architectural research and questions of the potential risk for adverse impact of cemeteries in environment have never received enough attention. However, this risk may exist when cemeteries are placed in areas that are vulnerable to contamination. The objective of the present work was the determination of pharmaceuticals (nonsteroidal anti-inflammatory/analgesics, antibiotics and psychiatric drugs) in groundwater samples collected inside of the cemeteries areas. Acetaminophen, salicylic acid, ibuprofen, ketoprofen, nimesulide, carbamazepine, fluoxetine, and sertraline were the pharmaceuticals achieved in the analysed samples. None of the studied antibiotics were detected. The highest concentration was obtained for salicylic acid (in the range of 33.7 to 71.0ng/L) and carbamazepine (between 20.0 and 22.3ng/L), respectively. By the cluster analysis similarity between carbamazepine and fluoxetine was achieved.
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Affiliation(s)
- P Paíga
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072Porto, Portugal
| | - C Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072Porto, Portugal.
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