Scientists associated with the New York City Advisory Council on Health Priorities, a new affiliate of the American Council on Science and Health, have objected to recent claims that the perchloroethlyne, or "perc," emissions from cleaning establishments in residential buildings in New York City are a "health hazard." These claims, made by New York City Public Advocate Mark Green, are unfounded and unnecessarily alarming, say the scientists. According to ACSH President Dr. Elizabeth Whelan, "There is no public health justification for needlessly frightening New York residents or for imposing a ban that would inflict economic disaster on dry-cleaning establishments."