50 Years Ago Health & Medicine 50 years ago, some of plastic’s toxic hazards were exposed Excerpt from the September 7, 1974 issue of Science News Vinyl chloride is a key ingredient in a widely used plastic. The U.S. Environmental Protection Agency has proposed a review of the chemical’s safety and environmental data that could result in stricter regulations or even a ban of its use. kali9/E+/Getty Images Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Erin Garcia de Jesús September 6, 2024 at 9:00 am Toxic surprises from the plastics industry — Science