title: Perspectives on what we formerly called threshold limit values.
abstract: From the point of view of an epidemiologist with experience in community air quality standards, occupational health standards, radiation standards, and water quality standards, reasons are given for discarding the assumption that occupational health protection should be based on threshold concepts. The weakness of worker health protection based on prescription of maximal exposure levels is noted, regardless of whose judgement is used for such levels.
authors.affiliation: Unit of Epidemiology and Health Services Evaluation, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel.
authors.forename: J R
authors.initials: JR
authors.lastname: Goldsmith
mesh_terms: D000395:Air Pollutants, Occupational; D002140:California; D004781:Environmental Exposure / Q000592:standards*; D004812:Epidemiologic Methods; D008452:Maximum Allowable Concentration; D009314:National Institute for Occupational Safety and Health, U.S.; D016272:Occupational Health; D011057:Politics; D014481:United States; D014489:United States Occupational Safety and Health Administration
chemical_list: D000395:Air Pollutants, Occupational