A study led by an Indian-origin researcher says that pregnant women with higher blood levels of a common plastic chemical used in the coatings of food containers are more likely to deliver their babies early compared with the ladies with lower levels of that chemical. The researchers investigated the role of Bisphenol A or BPA blood levels of risk of preterm birth. Women are continuously exposed to BPA because it's used in the construction and coatings of food containers and its release into food is increased by microwave or other heat sources said Ramkumar Menon assistant professor at The University
