$5.09 billion

Ambient air pollution cost the United States $5.09 billion dollars in medical expenses and lost economic productivity related to preterm birth in 2010...

Ambient air pollution cost the United States $5.09 billion dollars in medical expenses and lost economic productivity related to preterm birth in 2010, researchers said. Of that total, $760 million was attributed to direct medical costs, according to Leonardo Trasande, MD, of New York University School of Medicine, and colleagues, writing in Environmental Health Perspectives.

billion/milliard – expenses/dépenses, frais - related to/lié à, en raison de – preterm/avant terme, prématuré – MD or DM = Doctor of Medicine – health/santé