Ontology highlight
ABSTRACT:
SUBMITTER: Smith TJ
PROVIDER: S-EPMC5116924 | biostudies-literature | 2012 Dec
REPOSITORIES: biostudies-literature

Research report (Health Effects Institute) 20121201 172
<h4>Introduction</h4>Hot spots are areas where concentrations of one or more air toxics--organic vapors or particulate matter (PM)--are expected to be elevated. The U.S. Environmental Protection Agency's (EPA*) screening values for air toxics were used in our definition of hot spots. According to the EPA, a screening value "is used to indicate a concentration of a chemical in the air to which a person could be continually exposed for a lifetime ... and which would be unlikely to result in a dele ...[more]