Last week the Obama administration unveiled a new environmental regulation designed to decrease ozone emissions, a smog-causing pollutant that is often linked to asthma, respiratory illness, and heart disease.
The regulations proposed by the Obama administration would lower the amount of ozone pollution from 75 parts per billion established in 2008 by the Bush administration to a smaller range of 65 to 70 parts per billion. However, this value is still less strict than some environmental groups were advocating for. In fact, many environmental groups are in favor of stricter guidelines that would lower the threshold down to 60 parts per billion.