There are literally dozens of sites that provide information on biosolids research. To ensure a full and factual debate of the issues, Nursery Products has provided what we consider to be the most relevant.
www.biosolids.org - Information resource on biosolids and explanation of Environmental Management Systems use in the biosolids industry. This site serves as a "portal" to other research sources such as EPA, the Water Environment Federation and the Water Environment Research Foundation.
www.epa.gov - EPA Biosolids library
www.epa.gov - Provides information concerning risk assessments conducted as part of the effort to develop the Part 503 rule