Albert: The government has proposed new automobile emissions regulations designed to decrease the amount of polycyclic aromatic hydrocarbons (PAHs) released into the atmosphere by automobile exhaust  I don' t see the need for such regulations; although PAHs are suspected of causing cancer, a causal link has never been proven  Erin: Scientists also blame PAHs for 10, 000 premature deaths in this country each year from lung and heart disease
So the proposed regulations would save thousands of lives
It is not known whether PAHs are a causal factor in any diseases other than heart and lung disease and cancer.