Stronger standards for particles posed

WASHINGTON – To further improve public health across the country, EPA is proposing revisions to its national air quality standards for fine particle pollution (also called fine particulate matter) and from some coarse particles.
“Our nation’s air is the cleanest it has been in over a generation and today’s proposal begins our next step in the steady march toward cleaner air and healthier lives by addressing particle pollution,” said EPA Administrator Stephen L. Johnson.