The California Senate recently passed a bill to outlaw the sale of sippy cups and baby bottles that contain bisphenol A, or BPA, adding momentum o a campaign against the chemical that's gaining support in statehouses across the United States.

In recent weeks, Minnesota outlawed baby-food containers made with the chemical that some scientific studies suggest is a health hazard for young children as well as adults. Chicago decided to nix baby bottles made with BPA from city shelves, and a ban in Connecticut passed the legislature and awaits the governor's signature.

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