摘要
Arsenic(As)and antimony(Sb)rank 1 st and 244 th,respectively,on the 2019 Substance Priority List of the Agency for Toxic Substances and Disease Registry(ATSDR,2019).ATSDR lists substances,in order of priority,that are"most commonly found at facilities on the National Priorities List(NPL)and which are determined to pose the most significant potential threat to human health due to their known or suspected toxicity and potential for human exposure at these NPL sites".