Tiny fragments of plastic have been found in blood samples, stools and placentas of unborn babies, recent studies have shown.
Scientists are trying to understand the health risks of this new phenomenon, but concerns range from the impact on organs to how some plastic additives might disrupt hormonal systems.
Jodie Roussell, public affairs lead for packaging and sustainability at Swiss consumer goods giant Nestle (NESN.S), told the panel she hoped the treaty would help establish global quality controls for plastic, especially recycled plastic.
Roussell said in lieu of such standards, Nestle has established its own quality controls and a black list for certain materials.
International standards would help with "levelling the playing field and ensuring a fair distribution of responsibility across the value chain," Roussell said.