date:Sep 06, 2012
nt every day of every year in supplying America with the food that it needs.
Particulate matter includes both urban and rural dust. It is regulated under the Clean Air Act. NCBA said natural phenomena such as windblown dust and dust kicked up by cattle movements make it difficult for some cattle ranches to meet the current standard despite the use of best management practices.
Over the past 30 plus years, many experienced medical and public health experts in respiratory diseases, epidemiology,