AUGUSTA — Maine environmental regulators are considering restrictions on a chemical used to harden plastics in some food containers, baby bottles and cups, and many other household items.

A proposal before the Board of Environmental Protection today would designate bisphenol-A, or BPA, as a priority chemical under Maine’s 2008 legislation known as the Kid-Safe Products Law. Supporters of the move say scientific studies show BPA is a dangerous hormone-disrupting chemical linked to cancer, learning disabilities and obesity.

The board is going to consider whether to require safer alternatives to BPA in baby bottles, sippy cups, water bottles and other reusable food and beverage containers.