Ana Navas-Acien can’t quite recall the moment when she began to worry about arsenic in drinking water and its potential role in heart disease. Perhaps it was when she read a study suggesting a link among people in Bangladesh. And a similar study in Taiwan. And in Chile.
Several years ago, Dr. Navas-Acien, an associate professor of epidemiology at the Johns Hopkins Bloomberg School of Public Health, decided to see if similar links could be found in the United States.
Source: A Heart Risk in Drinking Water
Sadly, the article doesn’t have any suggestions for preventative measures. Only that they were looking at filters on wells. Ground/well water is largely the focus.