Coal in the Huainan coalfield has been, and continues to be, a valuable energy resource, especially for the electric utility industry. In recent years, the government has placed stringent demand (including environmental trace elements) on the coal that can be burnt in an environmentally acceptable manner. However, the research of environmental trace elements (ETEs) in coal from Huainan coalfield is not enough. Therefore, a greater understanding of the concentration, distribution, modes of occurrence of ETEs...