Earth/Environment

Anticorrosion chemicals, ancient Arkansas rock, stowaway species and more in this week’s news

Corrosion inhibitors taint water British researchers have found corrosion-inhibiting chemicals used in dishwashing detergents, auto antifreeze and other products throughout the environment — even in water coming out of kitchen taps. Dishwashing appears responsible for at least 30 percent of the benzotriazoles in water, the researchers report online April 4 in Environmental Science & Technology .