Bisphenol A (BPA) is a chemical used in the manufacture of aluminum cans and polycarbonate (plastic) bottles. So far, there is no conclusive medical evidence that a child can have or contract asthma bpa. Whether or not bpa causes asthma in children and adults, is still a matter of debate in the medical fraternity. However, with high levels of bpa in the environment, it is generally assumed that a child is likely to develop asthma over time, if exposed to the chemical.