Misstear, Bruce; Vargas, Claudia Ruz; Lapworth, Dan 
ORCID: https://orcid.org/0000-0001-7838-7960; Ouedraogo, Issoufou; Podgorski, Joel.
2023
A global perspective on assessing groundwater quality.
Hydrogeology Journal, 31.
11-14.
10.1007/s10040-022-02461-0
An assessment of global groundwater quality is needed in response to the threats posed by anthropogenic and geogenic contaminants. This essay summarises the challenges involved, including a large number of potentially relevant water quality parameters, the poor availability of data in many regions and the complex nature of groundwater systems. Direct monitoring data can sometimes be augmented by indirect methods such as earth observations, and by involving citizen science. A new web portal is being developed to complement existing databases.
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