Melissa Melendez said she joined the suit, filed in Los Angeles Superior Court, because she fears the chemical may have caused her 19-month-old daughter to show signs of premature puberty, USA Today reported Wednesday.

A hearing is scheduled for February.

The newspaper said bisphenol A is found in water bottles, food containers, baby bottles, some dental fillings and the coatings for the inside of food cans. Phthalates are used in toys, rattles, teethers, car interiors and medical devices.

The U.S. Centers for Disease Control and Prevention said research has shown that 95 percent of people in the United States have detectable levels of bisphenol A in their bodies.