The EPA apparently assumes that people are exposed 24 hours a day to the concentrations of ozone and fine particulates measured by its monitoring stations, most of which are on urban rooftops. This is misleading, as Americans spend most of their time indoors. There is little correlation between outdoor and indoor concentrations of ozone or fine particulates. We have addressed these issues more comprehensively in letters sent to the EPA dockets during the public comment period. We hope that the EPA will be swayed from this premature, and potentially harmful, piece of regulation.
Priorities is excellent.
Keep up the good work.