Science-Based Policy Recommendations for PM2.5 in

the United States


This article was written by Kevin R Cromar ; Alison G Lee , Jack R Harkema , and Isabella Annesi-Maesano


The importance of reducing air pollution concentrations is clear: lower air pollution levels will lead to improvements in public health and exert co-benefits for climate actions. The American  Thoracic  Society  (ATS)  has  a  responsibility  as  the  world's  leading  medical society  dedicated  to  advancing  global  respiratory  health  to  advocate  for  protective  air quality  standards  that  reflect  the  latest  scientific  understanding  of  the  health  risks  of outdoor pollution exposures.

In  the  US,  the  EPA  Administrator  is  responsible  for  making  final  decisions  in  regard  to the National Ambient Air Quality Standards (NAAQS) for fine particulate matter (PM2.5)as  directed  by  the  Clean  Air  Act.    This  decision  is  greatly  assisted  by  technical  and policy documents prepared  by  EPA staff, under  the guidance  of  the Clean  Air Science Advisory   Committee   (CASAC),   and   for   which   ATS   provided   substantive   public comments.

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