Hazardous Waste Site Health Risk Assessment Program
4052 Bald Cypress Way, Bin A-08
Tallahassee, FL 32399-1710
Some contaminants present unique issues and challenges to the environmental community. These substances had not been previously detected or were found in less concentrations but are recently detected in global water sources, soil, sediment, and/or air at levels that pose a risk to the public health. These substances are categorized as contaminants of emerging concern or emerging contaminants.
When a chemical is found in drinking water and no regulatory standards exist, the Department of Health develops Health Advisory Level (HAL)s. The HAL concentration of a chemical in drinking water is a value that, based on the available data, is virtually certain not to cause adverse human health effects if consumed over a lifetime.