Villagers follow the geology to healthy water in Bangladesh

Field set-up to filter groundwater in Bangladesh for radiocarbon dating of bacterial RNA. Scientists have found a way to fight arsenic in well water, which accounts for one of every 20 deaths in Bangladesh.
Arsenic, often referred to as the "king of poisons," has a long, sordid history as a poison once used in high doses to assassinate aristocrats. It's also a common natural element found in well water around the world.
In groundwater, too much arsenic is still a killer, nowhere more so than in Bangladesh. The South Asia country's 10 million or more shallow, ... More at https://www.nsf.gov/news/news_summ.jsp?cntn_id=297072&WT.mc_id=USNSF_51&WT.mc_ev=click
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