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Mapping global hotspots and trends of water quality (1992-2010): a data driven approach

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  • Sebastien Desbureaux

    (CEE-M - Centre d'Economie de l'Environnement - Montpellier - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement - UM - Université de Montpellier)

  • Frederic Mortier

    (UPR Forêts et Sociétés - Forêts et Sociétés - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Cirad-ES - Département Environnements et Sociétés - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement)

  • Esha Zaveri

    (World Bank Group)

  • Michelle van Vliet

    (Universiteit Utrecht / Utrecht University [Utrecht])

  • Jason Russ

    (World Bank Group)

  • Sophie Aude

    (World Bank Group)

  • Richard Damania

    (World Bank Group)

Abstract

Clean water is key for sustainable development. However, large gaps in monitoring data limit our understanding of global hotspots of water quality and their evolution over time. We demonstrate the value added of a data-driven approach to provide accurate high-frequency estimates of surface water quality worldwide over the period 1992-2010. We assess water quality for six indicators (temperature, dissolved oxygen, pH, salinity, nitrate-nitrite, phosphorus) relevant for the Sustainable Development Goals (SDG). The performance of our modelling approach compares well to, or exceeds, the performance of recently published process-based models. The model's outputs indicate that poor water quality is a global problem that impacts low-, middle-and high-income countries but with different pollutants. When countries become richer, water pollution does not disappear but evolves.

Suggested Citation

  • Sebastien Desbureaux & Frederic Mortier & Esha Zaveri & Michelle van Vliet & Jason Russ & Sophie Aude & Richard Damania, 2022. "Mapping global hotspots and trends of water quality (1992-2010): a data driven approach," CEE-M Working Papers hal-03764434, CEE-M, Universtiy of Montpellier, CNRS, INRA, Montpellier SupAgro.
    • Handle: RePEc:hal:wpceem:hal-03764434
    Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-03764434
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