(Photo : Pixabay) A new study found that many US regions have drinking water exposed to high amounts of arsenic. The researchers published their results in the online journal Environmental Health Perspectives. According to the first author and environmental health sciences post-doctoral research fellow Dr. Anne Nigra, the study revealed important implications regarding efforts in decreasing levels of arsenic exposure and obtaining environmental justice. Dr. Nigra said that there have not been any systematic studies in drinking water exposure inequalities. Their study findings have identified the communities which are in urgent need of more protective measures. The researchers sought to identify those subgroups who are exposed to arsenic concentrations in the water at levels over 10 μg per Liter even after the maximum arsenic levels have been set.