” Figure A shows the location of the lungs and airways in the body. Figure B shows a cross-section of a normal airway. Figure C shows a cross-section of an airway during asthma symptoms. ” Caption & Image credit: National Heart Lung & Blood Institute Look past the oil globs and political waffling for a minute and you’ll find good news lurking. USEPA has upgraded the an outdated SO2 standard, which involved long term (daily) average concentration limits, to a short-term standard that better protects asthmatics, for example. By early 2013 expect enfor… Read the full story on TreeHugger
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USEPA Upgrades SO2 Air Standard For First Time In 40 Years – Asthmatics Have Much To Gain
