Agency for Toxic Substances & Disease Registry

Toxic Substances Portal

The Agency for Toxic Substances & Disease Registry's Toxic Substances Portal is a website that provides information on arsenic for community members, emergency responders, and toxicological and health professionals on many toxic substances, including arsenic. These resources vary in length and technical detail, so check out the different links to find the information you're looking for.

Columbia Superfund Research Program

New Jersey Arsenic Awareness Initiative

This website was created by the Columbia Superfund Research Program to raise awareness about the issue of arsenic in private wells in New Jersey, as well as to spur at-risk residents to action to test and treat their water, if necessary. The site contains videos about arsenic's health effects, testing water for arsenic, and installing an arsenic treatment system. There are also pages on testing, treatment, and FAQs about arsenic in well water. Even if you aren't from New Jersey, the information on this site is relevant to private well owners everywhere!

Consumer Reports

Arsenic in Rice

Consumer Reports, a non-profit consumer advocacy group, has tested rice and rice products for arsenic and published their findings independently of the U.S. FDA testing of arsenic in food. Consumer Reports offers recommendations and a point system to measure dietary arsenic exposure that provides consumers with an upper limit of arsenic exposure through rice and rice products.

Dartmouth Children's Environmental Health and Disease Prevention Research Center

DALI Lab Arsenic tool

An interactive website that helps people understand the harmful effects of arsenic in common foods, and provides simple measures they can take to lower their arsenic exposure. The website is designed to make it easily accessible to all users; it includes main sections on how arsenic gets into food, tips to reduce arsenic exposure, effects of arsenic, and additional research.  

Dartmouth Toxic Metals Superfund Research Program

Well Water Community Action Toolkit

This toolkit was designed to help communities increase private well water testing and treatment for groundwater contaminants such as arsenic. The toolkit includes information on private wells in New Hampshire, a step-by-step guide for planning community activities, useful resources, communication materials, and project planning worksheets. While the Well Water Community Action Toolkit was made specifically for communities in New Hampshire, the information is relevant to communities across the country.

In Small Doses: Arsenic - 10 Minute Video

In Small Doses: Arsenic is a ten minute movie about the risks associated with exposure to potentially harmful amounts of arsenic in private well water. Take the time to learn how naturally occurring arsenic moves into groundwater, how it is detected, what can be done to remove it, and the current science surrounding the question of, "How much is too much?"

Food and Drug Administration

Arsenic in Food

The U.S. Food and Drug Administration's website provides information on arsenic in specific products such as fruit juice and rice, as well as Q&A pages and links to technical risk assessment and policy documents.

National Library of Medicine

Environmental Health Student Portal

The Environmental Health Student Portal, a product of the National Library of Medicine, National Institutes of Health, provides a safe and useful resource for students and teachers in grades 6–8 to learn how the environment can impact our health. The portal has a page on arsenic that communicates basic arsenic science and links to videos and resources for teachers.

New Hampshire Department of Environmental Services

Be Well Informed Guide

The Be Well Informed Guide from the New Hampshire Department of Environmental Services is designed to help you understand your water test results and, if your well water has commonly found pollutants in it, provide information about health concerns and water treatment choices. While many private wells provide safe drinking water, certain pollutants like arsenic are sometimes present in groundwater at levels that can affect your health and home. With your water test results in hand, click the button on the site to enter your test results from your laboratory report. You will receive an evaluation of your well water quality and, if advisable, water treatment options. Regardless of water treatment technology, it is essential that your treatment system is maintained on schedule in order for it to work properly. While this guide is made by the New Hampshire Department of Environmental Services, it's a useful tool for private well owners around the country.

University of Arizona Superfund Research Program

Gardenroots Citizen Science Project

Gardenroots is a citizen science program designed to reduce exposure to arsenic through soils and homegrown vegetables in communities near resource extraction and hazardous waste sites. This project and website from the University of Arizona Superfund Research Program provides tips for reducing arsenic absorption by vegetables, reducing incidental soil ingestion and inhalation for gardeners, and safe consumption of homegrown vegetables to reduce dietary arsenic and lead ingestion. While this website focuses on communities in Arizona, the resources are relevant to any community where arsenic levels in rocks and soil are high due to natural sources or human activities.

University of North Carolina Superfund Research Program

Informing Private Well Owners

The University of North Carolina Superfund Research Program developed an online resource for well owners interested in more information about understanding well-testing results, the distribution of groundwater contaminants such as arsenic in North Carolina counties, and the impact of groundwater on human health. The site provides resources for testing your well water, understanding your results, and navigating a sample well-testing results form.

United States Geological Survey

National Water Quality Assessment
Trace Elements
Environmental Health
Arsenic in Groundwater Resources

The United States Geological Survey shares featured publications examining arsenic in groundwater on a national and a regional scale. If you have a private well, look for your region to learn more about whether the geology of your area is likely to result in high arsenic in well water.

Arsenic in Private Wells is a website produced by the National Groundwater Association (NGWA), a non-profit that provides resources on private well issues and maintenance. The Q&As and links on this website provide great general information on arsenic in private wells and arsenic treatment options. The NGWA also provides a Private Well Owner Hotline (855-420-9355) where you can have a conversation about water quality in general and discuss arsenic in drinking water.

Water Systems Council

Well Water Testing by State or Province

The Water Systems Council provides information by state to learn more about water testing resources where you live.

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