Hydrogeochemical and sediment parameters improve predication accuracy of arsenic-prone groundwater in random forest machine-learning models

The Science of The Total Environment, Год журнала: 2023, Номер 897, С. 165511 - 165511

Опубликована: Июль 12, 2023

Язык: Английский

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Water, Sanitation, and Hygiene of Nepal: Status, Challenges, and Opportunities

ACS ES&T Water, Год журнала: 2023, Номер 3(6), С. 1429 - 1453

Опубликована: Янв. 30, 2023

Access to water, sanitation, and hygiene (WASH) has been a challenge south Asia's rapidly growing climate change-sensitive region. Nepal, water-abundant country, faces obstacles fulfilling the highly prioritized WASH Sustainable Development Goal 6 (SDG 6). This review offers details about Nepal's status from 2000 2020 with regard challenges Nepal had in delivering reliable services people, as well opportunities for sustainable way forward, provides insights that can be applied other developing countries. From analysis of national-level assessments, estimates point toward healthy progress extending access population. However, large inequalities persist at subnational level between urban rural residents, poor rich genders. Many local constraints such lack long-term infrastructural capacity provide maintain services, financial issues, institutional policy incompatibilities are some key factors technical considerations private sector involvement could address. We also propose roles central, provincial, governments identification adaptation undeniable risks change. Furthermore, there is need capitalize on potential much-needed robust climate-resilient safeguarding rights future generations safe clean water.

Язык: Английский

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Dynamics of Arsenic Co-contamination in the Groundwater of the Eastern Himalayas: The Biogeochemical Drivers and GRACE-Based Evidence

ACS ES&T Water, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

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Groundwater Arsenic Contamination in Nepal

World Water Policy, Год журнала: 2025, Номер unknown

Опубликована: Май 13, 2025

ABSTRACT Arsenic contamination in the drinking water of Nepal, particularly Terai region, poses a serious public health challenge, as groundwater serves primary source for millions peoples. This study investigates prevalence, sources, and consequences arsenic contamination, employing recent data scientific analyses. Chronic exposure to is associated with severe complications, including skin lesions, various forms cancer, cardiovascular diseases, disproportionately affecting vulnerable populations. Despite ongoing efforts mitigate exposure, challenges remain effective identification management contaminated sources. Beyond accumulates soil crops, jeopardizing food safety. While traditional mapping methods are expensive, machine learning offers cost‐effective, high‐resolution solutions. Portable field kits enable rapid detection water, but proper disposal filtration waste remains challenge. Iron‐based biosand filters present viable interim solution comply standards set by Government while also effectively eliminating bacteria viruses. Nevertheless, establishment sustainable treatment systems clustered communities region imperative. paper shows necessity comprehensive testing, enhanced awareness, practices safeguard Nepal.

Язык: Английский

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Two-dimensional distribution of arsenic species in the riparian zone regulated by As-Fe co-transformation under varying river water proportions and bicarbonate concentrations

Journal of Hydrology, Год журнала: 2024, Номер 643, С. 131919 - 131919

Опубликована: Сен. 2, 2024

Язык: Английский

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