A new report says that the smell given off by new vinyl shower curtains is chock-full of dangerous chemicals, reports the Los Angeles Times. Researchers tested PVC curtains purchased at Bed Bath & Beyond, Kmart, Sears, Target, and Wal-Mart, and found that all of them contained “high concentrations” of what’s technically known as “bad stuff”—”One of the curtains tested released measurable quantities of as many as 108 volatile organic compounds into the air, some of which persisted for nearly a month.” Update: the report is receiving criticism from some medical and science experts, including a spokeswoman for the CPSC.