The California-based Center for Environmental Health (CEH) has found elevated BPA levels in socks, primarily made of polyester with spandex, from several brands. All size ranges are included, but the emphasis is on babies’/children’s socks. Different blends of polyester, cotton, and spandex were tested. The concentrations found were up to 19 times over the California safe limit of the chemical, though socks predominantly made from cotton were not affected.
Based on their findings and according to California Proposition 65, the CEH sent 60-day notices to 75 sock brands in September 2021. According to the Prop 65 process, defendants will have 60 days to work with CEH to remedy the violations, e.g., by providing Prop 65 warning labels for the presence of BPA with their products when sold, before CEH files a complaint.
Bisphenol A is an organic synthetic compound with the chemical formula (CH₃)₂C(C₆H₄OH)₂ belonging to the group of diphenylmethane derivatives and bisphenols, with two hydroxyphenyl groups. It is a colorless solid that is soluble in organic solvents but poorly soluble in water. In 2013, scientists published study findings that showed that BPA exposure could affect egg maturation in humans. A 2015 review found evidence that BPA can interfere with endocrine function involving the hypothalamus and pituitary gland. The researchers suggest that this type of action can affect puberty and ovulation and may lead to infertility. They add that the impact may be “lifelong and transgenerational.”
Traditionally, BPA was not considered a high-risk chemical in textile fibers. The European Commission (EC) has asked the Scientific Committee on Consumer Safety (SCCS) to determine whether clothing articles expose consumers to a concerning level of BPA, whether vulnerable consumers such as infants, young children, or pregnant women are at higher risk and, if possible, to recommend limit values.
