Petrography and Geochemistry of the Rocks in Lodwar, Kenya and their Influences on Groundwater Quality

This paper evaluates the influence of rock chemistry on groundwater quality in the region of Lodwar County, Kenya. Rock geochemistry influences groundwater quality and the aquifer processes of an area. Therefore, this study used conventional petrography and geochemistry techniques to measure the mineralogical compositions of 69 rock samples. The geological study area comprised of quartzo-feldspathic gneiss and biotite gneiss of the Precambrian basement, as well as sedimentary Turkana Grits and Holocene sediments, Tertiary volcanics comprising nepheline phonolites and augite basalts, alluvial deposits along the banks of major Streams and laggas. Quaternary sands also blanket much of the area. The results demonstrate that that geological factors and processes have location-specific influence on groundwater quality. These should be considered in aquifer water-quality studies and supply development across Africa’s vast ASAL regions.

Socio-spatial and seasonal dynamics of small, private water service providers in Khulna district, Bangladesh

Small water service providers operating in informal markets across the Global South address critical gaps in public investments in the rural water sector. This study analyses the growth and operations of private desalination plants and distributing vendors in Khulna, Bangladesh, within the broader landscape of uncoordinated investments by government, donors and households. Household water choices and payment behaviour vary spatially and seasonally, with observable wealth differences in self-supply investments in rainwater tanks and tubewells. Monitoring and regulating informal private providers can improve sectoral coordination, increase efficiency of service delivery and unlock commercial finances against the backdrop of declining aid-based financing.

Invited perspective: Beyond National Water Quality Surveys: Improving Water Quality Surveillance to Achieve Safe Drinking Water for All (Sustainable Development Goal 6.1)

This perspective summarises a recent paper from the Joint Monitoring Program team (Bain et al. 2021), and recommends three key areas for capacity strengthening to advance water safety toward achieving SDG 6.1: better information through risk-based monitoring, improved institutional clarity on roles and responsibilities, and more investment in mainstream water safety planning.

Drinking Water Quality in Bangladesh | 2021 Updates

This report shares key findings from the Bangladesh Multiple Indicator Cluster Survey (MICS) 2019: Water Quality Thematic Report, based on water quality testing and survey carried out in 2019 by Bangladesh Bureau of Statistics in collaboration with UNICEF and icddr,b.

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