Chicago could become the first major American city to ban the sale of products  used by toddlers that contain the controversial chemical BPA.

Yesterday, Aldermen Manuel Flores (D-1) and Ed Burke (D-14) presented an amended version of a proposal they introduced in February, which would ban the sale of some products containing the chemical bisphenol A, or BPA.

Retailers would be barred from selling water bottles, baby bottles and Sippy cups used by toddlers if they contain BPA. The chemical has been linked to neurological disorders and cancer, according to a University of Illinois at Chicago scientist who testified at a City Council meeting last month.

“Given the reports that have been published, connecting BPA to long-term illness, it’s our responsibility to move expeditiously and move to protect our children, especially,” Flores says.

If approved, the bill would take effect only if the federal Food and Drug Administration doesn't move to more stringently regulate BPA. It's unclear whether the FDA is contemplating such a move.

The council voted to postpone the vote in a full council meeting yesterday, giving more time for the FDA to make a decision. Aldermen are expected to vote on the measure April 30.

If Chicago bans the products, Flores says it would go a long way in persuading manufacturers to stop using the chemical.

“I think it would send a very strong message that we need not wait for the FDA to protect us,” he says. “Given the health concern and risk, local governments can undertake initiatives to protect themselves and their citizens.”

The resolution was inspired by a similar bill up for debate in the state House of Representatives, as well as a Canadian mandate, classifying BPA as a toxin.