 coal ash contains contaminants such as mercury, cadmium, and arsenic, according to the U.S. EPA. I'm Dan Crocker, Duluth. A funeral mass will take place this morning for longtime St. Paul Pioneer Press journalist Ruben Rosario, who died last week. As an editor and then as a writer of more than 2,000 columns, Rosario spent decades telling the stories of Minnesotans and the issues facing the state.