Danger of groundwater contamination widely underestimated because of shortcuts for aquifer recharge

摘要: Groundwater pollution threatens human and ecosystem health in many areas around the globe. Shortcuts to groundwater through concentrated recharge are known transmit short-lived pollutants into carbonate aquifers endangering water quality of a quarter world population. However, large-scale impact such on remains poorly understood. Here we apply continental-scale model quantify danger contamination by degradable rock regions. We show that regions where takes place, percentage non-degraded increases from <1% 10-50%. In those regions, like Glyphosate can exceed their permissible concentrations up 19 times when reasonable application rates assumed. Our results imply continuing industrial agricultural productivity, shortcuts may result widespread substantial reduction usable volumes.