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Geospatial Relationships Between Water Quality and Human Health Outcomes in a Changing Climate

A special issue of Water (ISSN 2073-4441).

Deadline for manuscript submissions: 30 October 2026 | Viewed by 788

Special Issue Editors


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Guest Editor
Department of Environmental, Agricultural and Occupational Health, College of Public Health University of Nebraska Medical Center, 984388 Nebraska Medical Center, Omaha, NE 68198-4388, USA
Interests: risk assessment and prevention; environmental health; health risk in water; exposure; toxicity

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Guest Editor
1. Department of Biology, University of Nebraska at Omaha, Omaha, NE 68182-0040, USA
2. Idaho Water Resources Research Institute, University of Idaho, Moscow, ID 83844-3002, USA
Interests: citizen science; water and public health; invertebrates as environmental sentinels; environmental; epidemiology

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Guest Editor
Department of Geospatial Science, Artis College of Science and Technology, Radford University, Radford, VA 24142, USA
Interests: water security; geohealth; hydrology; water quality; citizen science

Special Issue Information

Dear Colleagues,

The waterways across the world are being threatened by the same environmental disturbances that threaten surface and groundwater nationwide. These disturbances include extreme weather conditions, including flooding and drought, and chemical concerns, including nutrient and agricultural runoff and excessive industrial discharge. All these perturbations can lead to adverse human health impacts downstream that range from acute (heat stress) to chronic (carcinogenesis) in their scope. GeoHealth, a rapidly developing field of study, is helping to advance our understanding of the complex interactions between waterscapes and the health, well-being, and continued progress of human populations. This session invites abstracts focusing on understanding the spatial and/or temporal relationships between water quality variations, climate change, and adverse human health outcomes.

Prof. Dr. Eleanor Rogan
Prof. Dr. Alan Kolok
Dr. Naveen Joseph
Guest Editors

Manuscript Submission Information

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Keywords

  • water quality
  • climate change
  • GeoHealth
  • cancer incidence
  • extreme weather
  • spatial analysi

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Published Papers (1 paper)

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Research

20 pages, 920 KB  
Article
Mapping the Climate–Water–Health Nexus Across African Climatic Regions (2000–2020)
by Zoltán Ködmön
Water 2026, 18(7), 767; https://doi.org/10.3390/w18070767 - 24 Mar 2026
Viewed by 419
Abstract
This study develops and applies a Climate–Water–Health (CWH) Nexus Index to compare multi-dimensional risk trajectories across six African Least Developed Countries, namely, Chad, Democratic Republic of Congo, Lesotho, Madagascar, Niger, and Togo, each representing major climatic regions. Using decadal averages for 2000–2009 and [...] Read more.
This study develops and applies a Climate–Water–Health (CWH) Nexus Index to compare multi-dimensional risk trajectories across six African Least Developed Countries, namely, Chad, Democratic Republic of Congo, Lesotho, Madagascar, Niger, and Togo, each representing major climatic regions. Using decadal averages for 2000–2009 and 2010–2020, the study constructs three sub-indices—Climate Risk Index, Water Insecurity Index, and Health Burden Index—and then aggregates them into a composite CWH index. Indicators are harmonized via min–max normalization, and water and health measures are expressed per 100,000 population to ensure cross-country comparability under differing population sizes. The results of the study indicate substantial heterogeneity in both levels and drivers of nexus risk. The CWH risk decreased in most countries from the 2000s to the 2010s, while relative positions shifted as improvements occurred unevenly across dimensions. Sensitivity analysis with equal and dimension-focused weights confirms that core country groupings and extremes are robust to plausible weighting schemes. External consistency checks show a strong negative Pearson correlation between the standard CWH and the Human Development Index in both decades, indicating that higher human development is associated with lower Nexus risk. The proposed framework is transparent, scalable, and suitable for extension to broader African coverage and subnational mapping. Full article
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