Quantcast

Latest Automobile emissions control Stories

2011-12-21 22:49:04

A report by researchers at Columbia University's Mailman School of Public Health provides an expanded review of six new air quality regulations proposed or recently adopted by the U.S. Environmental Protection Agency's (EPA).


Word of the Day
marcescent
  • Withering but not falling off, as a blossom that persists on a twig after flowering.
The word 'marcescent' comes from a Latin word meaning 'to wither'.
Related