SignificanceCurrent research linking biodiversity and human diets has used metrics without justification from a nutritional point of view. Diet species richness, or a count of the number of different species consumed per day, assesses both nutritional adequacy and food biodiversity of diets for women and children in rural areas. The positive association of food species richness with dietary quality was observed in both the wet and the dry season. Food biodiversity contributes to diet quality in vulnerable populations in areas with high biodiversity. Reporting the number of species consumed during dietary assessment provides a unique opportunity to cut across two critical dimensions of sustainable development—human and environmental health—and complements existing indicators for healthy and sustainable diets.

Sanitation remains one of the Sustainable Development Goals, with slow progress. Tanzania has been implementing the National Sanitation Campaign through a Community-Led Total Sanitation (CLTS) approach since 2012. Njombe District Council (DC) has been identified to be among the best performing councils in the implementation of the sanitation campaign. A qualitative study was conducted to document how the CLTS was carried out in Njombe DC, assess progress on CLTS implementation and define the success factors for CLTS implementation. Findings show that CLTS intervention has resulted in increased coverage of improved latrines at a household level from 7.5% before the intervention in 2011 to 99.8% in September 2018. In addition, households with functional hand washing facilities have increased from 5.1% before the intervention to 94% in September 2018. Involvement of political leaders and government officials from the council level to the lowest governmental unit offered important support for CLTS implementation. The best mix of sanitation education, regulation and enforcement was instrumental in raising community awareness, changing collective behavior, making people comply with the village sanitation laws, and the overall success in the sanitation campaign.

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Sachet water is growing in importance as a source of drinking water for many people in Nigeria. In recent years, doubts over the quality of sachet water have grown. Commentators often cite poor distribution and storage practice for contamination of sachets. However, the integrity of the production process has been shown to be a weakness but has not received attention from the regulator or producers because of a lack of proper regulation of the industry. This study implemented the hazards analysis and critical control points (HACCP) framework in eight sachet water factories in Ibadan, Nigeria. The objective was to test HACCP's viability as a proactive management tool for improving sachet water quality. The findings show that HACCP can be adopted within the sachet water industry. However, the implementation of HACCP requires both technical and behavioural changes within the production process.bs_bs_banner Water and Environment Journal. Print

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