VALLEY HEALTH

up drinking water supplies, but there are new reports of emerging contaminants linked to child development. Here’s what to know about some of the most common water contaminants linked to child health, along with information about how to filter them:

• PFAS: According to Environmental Working Group scientists, the presence of Perfluoroalkyl and polyfluoroalkyl substances (PFAS) in American drinking water is much wider spread than previously thought. Contamination of drinking water or ground water has been detected at almost 1,400 sites in 49 states. This large class of chemicals -- which includes perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) -- is added to a range of products and packaging. They are collectively referred to as “forever chemicals” because they don’t break down easily and can last thousands of years. They can also build up in the human body. The Centers for Disease Control and Prevention reports that the blood of nearly all Americans is contaminated with PFAS. A new medical research study recently reported PFAS is altering hormonal and metabolic pathways needed for