In April 2011, employees requested a health hazard evaluation to investigate concerns about indoor environmental quality at an accounting office in Florida with a history of indoor dampness, mold growth, and building related symptoms among staff. Findings and recommendations are included.

In March 2008, an International Brotherhood of Teamsters local union requested a health hazard evaluation at a flavoring manufacturing company because of concern about possible lung effects of flavoring exposures, including diacetyl. The National Institute for Occupational Safety and Health (NIOSH) staff evaluated spirometry data supplied by the company on production employees tested from 1998 through 2009. The majority of the spirometry tests were performed in the years 2004 and later. NIOSH findings and recommendations are detailed.

On May 11, 2011, the National Institute for Occupational Safety and Health (NIOSH) received a request from the management of an automobile and scrap metal shredding facility regarding cases of Legionnaires' disease that had been identified among their workers. The request listed concerns about dusts, mists, and vapors generated during the process of shredding automobiles and scrap metal. The health concerns were Legionnaires' disease and respiratory disease. The report includes the authors' findings and recommendations.

The National Institute for Occupational Safety and Health (NIOSH) received from the UNITE HERE International Union a request for health hazard evaluations (HHE) of respiratory health and inhalation exposures of food preparation workers at three New York City food service facilities managed by the Aramark Corporation. This request was prompted by concerns of exposure to artificial butter-flavored cooking oils, containing diacetyl. Exposure to diacetyl is associated with a severe lung disease, called bronchiolitis obliterans. NIOSH findings and recommendations are detailed.