A shocking new study has revealed that groundwater drunk by billions of people may have been contaminated by decades of nuclear weapons testing.
Researchers looked at more than 6,000 wells around the globe, some containing water more than 10,000 years old, found more than half had traces of tritium.
Even at low doses, tritium has been linked with increased risk of mutation and cancer because it goes directly into the tissues of organs of the human body.
http://www.dailymail.co.uk/sciencetech/article-4443140/Water-drunk-BILLIONS-people-contaminated.html