Effects of storage temperature and duration on release of antimony and bisphenol A from polyethylene terephthalate drinking water bottles of China

Environ Pollut. 2014 Sep;192:113-20. doi: 10.1016/j.envpol.2014.05.012. Epub 2014 Jun 6.

Abstract

We investigated effects of storage temperature and duration on release of antimony (Sb) and bisphenol A (BPA) from 16 brands of polyethylene terephthalate (PET) drinking water bottles in China. After 1-week storage, Sb release increased from 1.88-8.32 ng/L at 4 °C, to 2.10-18.4 ng/L at 25 °C and to 20.3-2604 ng/L at 70 °C. The corresponding releases for BPA were less at 0.26-18.7, 0.62-22.6, and 2.89-38.9 ng/L. Both Sb and BPA release increased with storage duration up to 4-week, but their releasing rates decreased with storage time, indicating that Sb and BPA release from PET bottles may become stable under long term storage. Human health risk was evaluated based on the worst case, i.e., storage at 70 °C for 4-week. Chronic daily intake (CDI) caused by BPA release was below USEPA regulation, Sb release in one brand exceeded USEPA regulated CDI (400 ng/kg bw/d) with values of 409 and 1430 ng/kg bw/d for adult and children.

Keywords: Antimony; Bisphenol A; Health risk; Polyethylene terephthalate; Release.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antimony / analysis*
  • Antimony / chemistry
  • Benzhydryl Compounds / analysis*
  • Benzhydryl Compounds / classification
  • Child
  • China
  • Drinking Water / chemistry*
  • Environmental Exposure / statistics & numerical data*
  • Food Storage / methods*
  • Humans
  • Phenols / analysis*
  • Phenols / classification
  • Polyethylene Glycols / chemistry*
  • Polyethylene Terephthalates
  • Temperature*

Substances

  • Benzhydryl Compounds
  • Drinking Water
  • Phenols
  • Polyethylene Terephthalates
  • Polyethylene Glycols
  • Antimony
  • bisphenol A