Arsenic and You Learn about arsenic and find out if your family might be exposed through private well water, food or other sources. The site includes easy steps to reduce your exposure and additional resources.

The National Library of Medicine has a webpage with information and links about arsenic.

ATSDR ToxFAQs for Arsenic The Agency for Toxic Substances and Disease Registry’s ToxFAQs for arsenic.

EPA Office of Ground Water and Drinking Water: Arsenic Rule-Making On January 22, 2001 EPA adopted a new standard for arsenic in drinking water at 10 parts per billion (ppb), replacing the old standard of 50 ppb. The rule became effective on February 22, 2002 and systems were required to comply with the 10 ppb standard as of January 23, 2006.

NRDC Arsenic in Drinking Water FAQs The National Resource Defense Council’s answers to frequently asked questions about arsenic in drinking water.

Arsenic in Groundwater of the United States The United States Geological Survey, a sub-agency of the U.S. Department of the Interior, has developed maps that show where and to what extent arsenic occurs in groundwater in New England and across the country. In addition to maps, this site contains information about the occurrence, controls and health effects of arsenic.

WebElements Periodic Table: Arsenic Includes extensive information on the chemical properties of arsenic, from the simple to the complex. Designed for students and for curious, somewhat science-savvy citizens.

Environmental Working Group The EWG is an environmental advocacy group that researches government data, legal documents and scientific studies. The EWG maintains this page to provide links about arsenic research and exposure.