Water

Figure showing WASH-GEM themes.
A right to clean water is one of the global SDGs and is especially important for women.
Figure showing the proportions of the global population under water stress per month in 2010
This Article supports SDGs 3 and 6 by assessing global human water stress for low to high environmental flow protection. The findings suggest that ensuring high ecological protection would put nearly half the world's population under water stress for at least 1 month per year, meaning important trade-offs are made when allocating limited water resources between direct human needs and the environment.
Proportion of daily kcal provided by each NOVA food group based on food purchases in Brazilian metropolitan areas, 1987–88 to 2017–18
Background: The consumption of ultra-processed foods has increased worldwide and has been related to the occurrence of obesity and other non-communicable diseases. However, little is known about the environmental effects of ultra-processed foods. We aimed to assess the temporal trends in greenhouse gas emissions (GHGE), water footprint, and ecological footprint of food purchases in Brazilian metropolitan areas, and how these are affected by the amount of food processing.
Concentrations of nine heavy metal (loid)s (HMs) were determined in fourteen different small indigenous species (SIS) of freshwater fish using atomic absorption spectrophotometer (AAS) technique. Mean concentrations of HMs in the investigated SIS of fish samples ranged from (0.284–1.554), (0.002–0.035), (0.055–0.431), (0.005–0.018), (0.011–0.252), (0.216–23.948), (0.460–34.616), (0.529–3.281), and (4.473–50.560) mg/kg-fw for Pb, Cd, Cr, As, Hg, Mn, Fe, Cu, and Zn, respectively. Statistically significant difference (p
Water and wastewater utilities, water and sanitation hygiene (WASH) practitioners, and regulating bodies, particularly in developing nations, rely heavily on indicator microorganisms, as opposed to pathogens, for much of their regulatory decisions. This commentary illustrates the importance of considering pathogens and not relying only on indicator organisms when making decisions regarding water and sanitation, especially with respect to meeting the current targets of the Sustainable Development Goal (SDG) 6.
Graphical abstract
This article examines how improved water security affects the success of other SDGs, when all the goals are examined simultaneously.
Components of urban water cycle and probable pathway of the novel coronavirus in water environment.
Increased concern has recently emerged pertaining to the occurrence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in aquatic environment during the current coronavirus disease 2019 (COVID-19) pandemic. While infectious SARS-CoV-2 has yet to be identified in the aquatic environment, the virus potentially enters the wastewater stream from patient excretions and a precautionary approach dictates evaluating transmission pathways to ensure public health and safety.
Cities are wrestling with the practical challenges of transitioning urban water services to become water sensitive; capable of enhancing liveability, sustainability, resilience and productivity in the face of climate change, rapid urbanisation, degraded ecosystems and ageing infrastructure. Indicators can be valuable for guiding actions for improvement, but there is not yet an established index that measures the full suite of attributes that constitute water sensitive performance.
Background: Access to safe sanitation and the elimination of open defecation are pre-conditions for improved child health and nutrition and wider achievement of the Sustainable Development Goals (SDGs). While Indonesia has a solid policy framework, the country ranks third globally in terms of numbers of people practicing open defecation. Objectives: Our aim was to assess the effectiveness of a five-year strategy to reduce open defecation through accelerating implementation of the national sanitation program across districts receiving variable levels of external support.
This study supports SDGs 3 and 6 by analysing data from 88 low-income and middle-income countries and showing geographical disparities in access to clean water and sanitation facilities. These findings identify where efforts to increase access to safe water and sanitation have been successful over time, and highlight the need for targeted and tailored interventions to reach those communities and regions that have been left behind.

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