Abstract
Natural spa springs are diffused all over the world and their use in pools is known since ancient times. This review underlines the cultural and social spa context focusing on hygiene issues, public health guidelines and emerging concerns regarding water management in wellness or recreational settings. The question of the "untouchability" of therapeutic natural waters and their incompatibility with traditional disinfection processes is addressed considering the demand for effective treatments that would respect the natural properties. Available strategies and innovative treatments are reviewed, highlighting potentials and limits for a sustainable management. Alternative approaches comprise nanotechnologies, photocatalysis systems, advanced filtration. State of the art and promising perspectives are reported considering the chemical-physical component and the biological natural complexity of the spa water microbiota.
Highlights
Natural spa springs are used for recreational purposes or wellness applications and are available globally [1,2,3]
The objective of this review is to consider issues related to thermal spa waters within the field of the recreational uses in pools, showing homologies and differences from a public health point of view and perspectives for innovative treatments
This approach was already applied in different spa pools and can provide further perspectives for the characterization of spa waters in recreational or wellness uses, adding a candidate new biological parameter to the traditional chemical-physical ones: the microbiota as a novel marker for public health [49,50,51,52]
Summary
Natural spa springs are used for recreational purposes or wellness applications and are available globally [1,2,3]. The peculiar and typical composition of each thermal water represents an interesting richness and a potentially beneficial property for health, but it implies additional difficulties in defying the correct management, treatment and monitoring of that specific water in a defined application, such as aerosol, beverages lavender or in pool [22,23] Based on their geological composition, natural waters may be enriched with several salts and ions, such as sulfur, halogens from group 17 of the periodic table, e.g., chlorine (Cl), bromine (Br), iodine (I), or alkaline earth metals comprising group 2 of the periodic table, e.g., magnesium (Mg) or calcium (Ca) [23,24]. The objective of this review is to consider issues related to thermal spa waters within the field of the recreational uses in pools, showing homologies and differences from a public health point of view and perspectives for innovative treatments
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More From: International Journal of Environmental Research and Public Health
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