Thirty-five atmospheric precipitation samples were collected at an urban site in Qingdao from June 2016 to May 2017. The total and soluble concentrations of eight trace elements in the samples were determined,and the variable characteristics of the concentrations and solubility of trace elements,as well as the factors affecting the solubility of trace elements in atmospheric precipitation,have been discussed. Based on the overall data,the total concentrations of the trace elements were found to be in the or...