And does this translate into a wellness concern for the employees? In a new paper called Steel Dust in the New York City Subway System as a Source of Manganese, Chromium, and Iron Exposures for Transit Employees, Steven Chillrud, a research scientist at the Lamont-Doherty Earth Observatory, and colleagues discuss an ongoing pilot study that requires a closer look at these relevant questions. The paper shall be released in the March problem of the Journal of Urban Health, a special issue focusing on subway health study. Among the largest subway systems in the world, the NYC subway environment could offer important information relevant to evaluating the potential for health results from exposures to airborne metals. Related StoriesStudy links antibiotic use during childhood to pounds gainCancer medical diagnosis improvements in England: an interview with Lucy Elliss-BrookesSugar intake and tooth decay: an interview with Professor Nigel PittsA research published this past year, in which high school students who commuted by subway collected air samples during their commutes, recommended that steel dirt generated in the brand new York City subway did significantly raise the total quantity of iron, manganese, and chromium that the college students breathed.Jensen, M.D., Ph.D., Giulia Magnani, M.D., Sameer Bansilal, M.D., M. Polly Seafood, B.A., Kyungah Im, Ph.D., Olof Bengtsson, Ph.Lic., Ton Oude Ophuis, M.D., Ph.D., Andrzej Budaj, M.D., Ph.D., Pierre Theroux, M.D., Mikhail Ruda, M.D., Christian Hamm, M.D., Shinya Goto, M.D., Jindrich Spinar, M.D.D., Ph.D., Robert G. Kiss, M.D., Ph.D., Sabina A. Murphy, M.P.H., Stephen D. Wiviott, M.D., Peter Held, M.D., Ph.D., Eugene Braunwald, M.D., and Marc S. Sabatine, M.D., M.P.H. For the PEGASUS-TIMI 54 Steering Committee and Investigators: Long-Term Use of Ticagrelor in Patients with Prior Myocardial Infarction Myocardial infarction is definitely a worldwide problem.1 In the United States alone, nearly 8 million people have a history of myocardial infarction.2 Patients who have had a myocardial infarction are at heightened risk for recurrent ischemic occasions,3-5 which suggests that this population might derive particular benefit from intensive secondary prevention.