To argue that the concentrations reported in "Macho Moms: Perchlorate pollutant masculinizes fish" (SN: 8/12/06, p. 99) are environmentally relevant is misleading. Those concentrations are usually in groundwater, not surface waters. I've been involved in the environmental field for almost 20 years and have yet to hear of any fish being caught in groundwater.
Study coauthor Frank von Hippel notes that much of the nation's water supply comes from groundwater and says that "groundwater flows just like surface water and, in many places, becomes surface water."—J. Raloff
I was sorry to learn Pluto did not qualify as a planet ("New Solar System? Twelve planets and counting," SN: 8/19/06, p. 115, and "Doggone! Pluto gets