After a study of 3,000 classrooms in 130 schools in 16 states, the Environmental Protection Agency urged all schools to conduct tests for radon. Explains a 6-step screening test, methods of reducing radon concentrations, and how the risk from radon exposure compares with other risks. (MLF)

This technical document is intended to assist school facilities maintenance personnel in the selection, design, and operation of radon reduction systems in schools. The guidance contained in this document is based largely on research conducted in 1987 and 1988 in schools located in Maryland and Virginia. Researchers from the United States…