2023-11-01 13:19:00
Today, a battery of laboratory tests is still necessary to determine the age of water: there is no perfect tracer that would alone provide the age of a drop of water.
But new dating methods are being developed. They target the most recent waters, since pollution issues primarily concern waters that have been recharging for just a few years or decades. By knowing the age of an aquifer, we can better assess its vulnerability: the younger it is, the more easily it will be polluted.
Pumping poses another threat : half of global pollution depends on groundwater to meet its needs. By dating the water, we can better assess the risks of drying out and transmit this valuable information to major bottled water producers.
For the team of researchers, this work represents a real service to be provided to future generations, while this precious resource is threatened by pollution and global warming.
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