This 1993 photograph showed two workers, who were repairing a wooden porch that had been dismantled by hand, demonstrating exterior renovation methods typically used on residences, where lead-based paint was present. This type of activity was classified as a low-exposure renovation method. A nonprofit organization requested that the National Institute for Occupational Safety and Health (NIOSH) do a health hazard evaluation, to assess lead exposures levels experienced by workers involved in the renovation of older, pre-1960 homes in Cincinnati, Ohio, where lead-based paint was found to be present. This method was found to result in low worker lead particulate exposure. However, average lead levels found to be present in the dust that had settled in the homes undergoing renovation, were high.