Title: Drinking Water Contaminants - Perchlorate 
Resource Type: web links 
Producers or distributor US EPA 
Author / Producer Type: Agency, regulator or other governmental or inter-governmental body 
Web link for product information: http://www.epa.gov/safewater/contaminants/unregulated/perchl ...  
EUGRIS Keyword(s): Contaminated land-->Contaminants-->Others
Contaminated land-->Risk assessment-->Toxicological information
Water and sanitation-->Pollution
Water and sanitation-->Water supply
Short description: EPA is currently undertaking efforts to help the Agency determine if regulation of perchlorate in drinking water would represent a meaningful opportunity for reducing risks to human health. To support its decision, the Agency is gathering occurrence data at public water systems, evaluating the availability and cost of treatment technology and assuring that analytical methods are available to monitor for perchlorate in water. EPA has established an official reference dose for perchlorate which is consistent with the recommended reference dose included in the National Academy of Science’s January 2005 report. A reference dose is a scientific estimate of a daily exposure level that is not expected to cause adverse health effects in humans. The reference dose will be used in EPA’s ongoing efforts to address perchlorate in drinking water. It is important to note that the reference dose in EPA’s draft assessment represents a preliminary estimate of a protective health level and is not a drinking water standard. 
Link to Organisation(s): EPA Environmental Protection Agency
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 23/01/2007