Shared Sanitation Versus Individual Household Latrines in Urban Slums: A Cross-Sectional Study in Orissa, India.

A large and growing proportion of the global population rely on shared sanitation facilities despite evidence of a potential increased risk of adverse health outcomes compared with individual household latrines (IHLs). We sought to explore differences between households relying on shared sanitation versus IHLs in terms of demographics, sanitation facilities, and fecal exposure. We surveyed 570 households from 30 slums in Orissa, India, to obtain data on demographics, water, sanitation, and hygiene. Latrine spot-checks were conducted to collect data on indicators of use, privacy, and cleanliness. We collected samples of drinking water and hand rinses to assess fecal contamination. Households relying on shared sanitation were poorer and less educated than those accessing IHLs. Individuals in sharing households were more likely to practice open defecation. Shared facilities were less likely to be functional, less clean, and more likely to have feces and flies. No differences in fecal contamination of drinking water or hand-rinse samples were found. Important differences exist among households accessing shared facilities versus IHLs that may partly explain the apparent adverse health outcomes associated with shared sanitation. As these factors may capture differences in risk and promote sanitary improvements, they should be considered in future policy

Women's role in sanitation decision making in rural coastal Odisha, India.

BACKGROUND: While women and girls face special risks from lack of access to sanitation facilities, their ability to participate and influence household-level sanitation is not well understood. This paper examines the association between women's decision-making autonomy and latrine construction in rural areas of Odisha, India. METHODS: We conducted a mixed-method study among rural households in Puri district. This included a cross sectional survey among 475 randomly selected households. These were classified as either having a functional latrine, a non-functional latrine or no latrine at all. We also conducted 17 in-depth interviews and 9 focus group discussions among household members of these three categories of households. RESULTS: Decisions on the construction of household level sanitation facilities were made exclusively by the male head in 80% of households; in 11% the decision was made by men who consulted or otherwise involved women. In only 9% of households the decision was made by women. Households where women were more involved in general decision making processes were no more likely to build a latrine, compared to households where they were excluded from decisions. Qualitative research revealed that women's non-involvement in sanitation decision making is attributed to their low socio-economic status and inability to influence the household's financial decisions. Female heads lacked confidence to take decisions independently, and were dependent on their spouse or other male family members for most decisions. The study revealed the existence of power hierarchies and dynamics within households, which constrained female's participation in decision-making processes regarding sanitation. CONCLUSIONS: Though governments and implementers emphasize women's involvement in sanitation programmes, socio-cultural factors and community and household level dynamics often prevent women from participating in sanitation-related decisions. Measures are needed for strengthening sanitation policies and effective implementation of programmes to address gender power relations and familial relationships that influence latrine adoption and use

Identifying Potential Sources of Exposure Along the Child Feces Management Pathway: A Cross-Sectional Study Among Urban Slums in Odisha, India.

Child feces represent a particular health risk to children due to increased prevalence of enteric agents and a higher risk of exposure owing to exploratory behaviors of young children. The safe management of such feces presents a significant challenge, not only for the 2.4 billion who lack access to improved sanitation, but also due to unhygienic feces collection and disposal and poor subsequent handwashing practices. We assessed potential sources of fecal exposure by documenting child feces management practices in a cross-sectional study of 851 children < 5 years of age from 694 households in 42 slums in two cities in Odisha, India. No preambulatory children and only 27.4% of ambulatory children defecated directly in the latrine. Children that did not defecate in a latrine mainly defecated on the ground, whether they were preambulatory or ambulatory. Use of diapers (1.2%) or potties (2.8%) was low. If the feces were removed from the ground, the defecation area was usually cleaned, if at all, only with water. Most children's feces were disposed of in surrounding environment, with only 6.5% deposited into any kind of latrine, including unimproved. Handwashing with soap of the caregiver after child feces disposal and child anal cleaning with soap after defecation was also uncommon. While proper disposal of child feces in an improved latrine still represents a major challenge, control of the risks presented requires attention to the full range of exposures associated to the management of child feces, and not simply the place of disposal

Efficacy of Moringa oleifera leaf powder as a hand-washing product: a crossover controlled study among healthy volunteers.

BACKGROUND: Moringa oleifera is a plant found in many tropical and subtropical countries. Many different uses and properties have been attributed to this plant, mainly as a nutritional supplement and as a water purifier. Its antibacterial activity against different pathogens has been described in different in vitro settings. However the potential effect of this plant leaf as a hand washing product has never been studied. The aim of this study is to test the efficacy of this product using an in vivo design with healthy volunteers. METHODS: The hands of fifteen volunteers were artificially contaminated with Escherichia coli. Moringa oleifera leaf powder was tested as a hand washing product and was compared with reference non-medicated liquid soap using a cross over design following an adaptation of the European Committee for Standardization protocol (EN 1499). In a second part of tests, the efficacy of the established amount of Moringa oleifera leaf powder was compared with an inert powder using the same protocol. RESULTS: Application of 2 and 3 g of dried Moringa oleifera leaf powder (mean log10-reduction: 2.44 ± 0.41 and 2.58 ± 0.34, respectively) was significantly less effective than the reference soap (3.00 ± 0.27 and 2.99 ± 0.26, respectively; p < 0.001). Application of the same amounts of Moringa oleifera (2 and 3 g) but using a wet preparation, was also significantly less effective than reference soap (p < 0.003 and p < 0.02, respectively). However there was no significant difference when using 4 g of Moringa oleifera powder in dried or wet preparation (mean log10-reduction: 2.70 ± 0.27 and 2.91 ± 0.11, respectively) compared with reference soap (2.97 ± 0.28). Application of calcium sulphate inert powder was significantly less effective than the 4 g of Moringa oleifera powder (p < 0.01). CONCLUSION: Four grams of Moringa oleifera powder in dried and wet application had the same effect as non-medicated soap when used for hand washing. Efficacious and available hand washing products could be useful in developing countries in controlling pathogenic organisms that are transmitted through contaminated hands

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Exploring menstrual practices and potential acceptability of reusable menstrual underwear among a Middle Eastern population living in a refugee setting.

PURPOSE: Menstruation is a biological process that approximately half of the world's population experiences over a significant period of their lifetime. As a displaced female, managing menstruation can be challenging as limited resources and changes in context confront the cultural norms of communities. This study explores the hypothetical acceptability and potential utility of a reusable menstrual underwear product through examining the beliefs, behaviors, and practices toward menstrual hygiene in a Middle Eastern population living in a refugee setting. PARTICIPANTS AND METHODS: A qualitative study employing a questionnaire, semi-structured interviews, and focus group discussions was conducted with 30 refugee women and 5 humanitarian staff in Ritsona, Greece. All 30 refugee women completed a questionnaire, six refugee women and five humanitarian staff participated in individual semi-structured interviews, and four focus group discussions were held containing five to six refugee women per group. Inductive analysis led to the development of key themes. RESULTS: Primary data analysis of narratives around the beliefs, behaviors, and practices of menstrual hygiene in this population revealed key themes related to the physical environment, the social environment, cleanliness, comfort, and health, and adaptation and coping. Themes related to the potential use of menstrual underwear included comfort, appearance, and concept, absorbent capacity and selected use, hygiene, and knowledge and implementation. CONCLUSION: Menstrual hygiene beliefs, behaviors, and practices are mostly consistent with existing literature. An acceptance of the concept of reusable menstrual underwear was expressed, although the perceived benefits of this product did not outweigh customary practices. The use of menstrual underwear as a complimentary product to traditional absorbents was expressed as helpful for promoting dignity

Assessment of the influence of intrinsic environmental and geographical factors on the bacterial ecology of pit latrines

Funding Information: This research received financial support from the Bill and Melinda Gates Foundation (grant number OPP52641). AWW and JP were supported by the Wellcome Trust [grant number 098051]. AWW and the Rowett Institute of Nutrition and Health, University of Aberdeen, receive core funding support from the Scottish Government Rural and Environmental Science and Analysis Service (RESAS). UZ is funded by Natural Environment Research Council (NERC) Independent Research Fellowship (NE/L011956/1). CQ is funded through an Medical Research Council fellowship (MR/M50161X/1) as part of the MRC Cloud Infrastructure for Microbial Bioinformatics consortium (MR/L015080/1).Peer reviewedPublisher PD

CARACTERIZACIÓN DE ELECTRODOS DE NÍQUEL DOPADOS CON NANOPARTÍCULAS DE ORO PARA LA OBTENCIÓN DE HIDRÓGENO

[ES] Hoy en día aún existen ciertos problemas para lograr la generación de hidrógeno que provenga de energías renovables, conocido como Hidrógeno Verde. Actualmente se busca mejorar los métodos de producción de hidrógeno para lograr la “descarbonización”. Se pretende perfeccionar dichos métodos para lograr una mejora climática global donde poder dejar de depender de los combustibles fósiles, así como del hidrógeno proveniente de estos. La incorporación de nanopartículas de metales nobles a los electrodos de níquel en los electrolizadores alcalinos se cree que puede mejorar la eficiencia de los mismos. El presente documento recoge los resultados y conclusiones obtenidas de la caracterización de un electrolizador para la obtención de hidrógeno usando 5 configuraciones diferentes de electrodos: ánodo de níquel liso - cátodo de níquel liso, ánodo de níquel liso - cátodo de níquel poroso , ánodo de níquel liso - cátodo de níquel poroso con incrustación de oro, ánodo de níquel poroso con incrustación de oro - cátodo de níquel poroso con incrustación de oro y ánodo de níquel poroso - cátodo de níquel poroso. El método de caracterización fue mediante electrolisis alcalina del agua, para la producción de hidrógeno, empleando un Voltámetro de Hoffman, a 3 densidades de corriente, 20, 50 y 100 mA cm-2 y 3 temperaturas, 30, 50 y 800C.[EN] Nowadays there are still certain problems to achieve the generation of hydrogen that comes from renewable energies, known as Green Hydrogen. Currently, it is seeking to improve hydrogen production methods to achieve "decarbonization". It is intended to perfect these methods to achieve a global climate improvement where we can stop depending on fossil fuels, as well as the hydrogen from these. The incorporation of noble metal nanoparticles to nickel electrodes in alkaline electrolyzers is believed to improve their efficiency. This document collects the results and conclusions obtained from the characterization of an electrolyzer for obtaining hydrogen using 5 different electrode configurations: smooth nickel anode - smooth nickel cathode, smooth nickel anode - rough nickel cathode, nickel anode smooth - rough nickel cathode with gold inlay, rough nickel anode with gold inlay - rough nickel cathode with gold inlay and rough nickel anode - rough nickel cathode. The characterization method was by alkaline electrolysis of water, for the production of hydrogen, using a Hoffman Voltameter, at 3 current densities, 20, 50 and 100 mA cm-2 and 3 temperatures, 30, 50 and 800C.Torondel Díaz, AD. (2021). CARACTERIZACIÓN DE ELECTRODOS DE NÍQUEL DOPADOS CON NANOPARTÍCULAS DE ORO PARA LA OBTENCIÓN DE HIDRÓGENO. Universitat Politècnica de València. http://hdl.handle.net/10251/174031TFG

The impact of a rural sanitation programme on safe disposal of child faeces: a cluster randomised trial in Odisha, India.

BACKGROUND: Unsafe disposal of child faeces is persistent and may lead to considerable impact on the health of young children. Research is limited on the impact of sanitation or hygiene interventions to improve child faeces disposal practices. METHODS: In the context of a randomised controlled trial to assess the health impact of a programme in Odisha, India, to promote rural sanitation under the Government of India's Total Sanitation Campaign, we explored whether the intervention affected the safe disposal of faeces of children under-5 years of age. RESULTS: At baseline, 1.1% of households practised 'safe' disposal of child faeces, either disposing it in a toilet or by burial. The intervention increased safe disposal of child faeces to 10.4% in intervention households, compared to 3.1% in the control households (RR 3.34; 95% CI 1.99-5.59). This increase in safe disposal is attributable to increases in latrine presence in the intervention communities; the intervention did not change safe disposal practices above and beyond the increase in latrine coverage. CONCLUSIONS: The very modest increase in safe disposal, while statistically significant, is not likely to have consequential health benefit. To achieve open defecation free communities, sanitation interventions will need to develop behaviour change approaches to explicitly target safe disposal behaviours

Menstrual hygiene management among adolescent schoolgirls in low- and middle-income countries: research priorities.

BACKGROUND: A lack of adequate guidance on menstrual management; water, disposal, and private changing facilities; and sanitary hygiene materials in low- and middle-income countries leaves schoolgirls with limited options for healthy personal hygiene during monthly menses. While a plethora of observational studies have described how menstrual hygiene management (MHM) barriers in school impact girls' dignity, well-being, and engagement in school activities, studies have yet to confirm if inadequate information and facilities for MHM significantly affects quantifiable school and health outcomes influencing girls' life chances. Evidence on these hard outcomes will take time to accrue; however, a current lack of standardized methods, tools, and research funding is hampering progress and must be addressed. OBJECTIVES: Compile research priorities for MHM and types of research methods that can be used. RESULTS: In this article, we highlight the current knowledge gaps in school-aged girls' MHM research, and identify opportunities for addressing the dearth of hard evidence limiting the ability of governments, donors, and other agencies to appropriately target resources. We outline a series of research priorities and methodologies that were drawn from an expert panel to address global priorities for MHM in schools for the next 10 years. CONCLUSIONS: A strong evidence base for different settings, standardized definitions regarding MHM outcomes, improved study designs and methodologies, and the creation of an MHM research consortia to focus attention on this neglected global issue