Image: Wikimedia Commons
At the current level, sulfur reduces the effectiveness of the catalytic converter, which eliminates nitrogen oxides, hydrocarbons and carbon monoxide. What’s more, sulfur compounds in fuel can damage metals and catalysts in engines and fuel cells, to say nothing about how their combustion releases toxic gases that contribute to acid rain and smog. Lower-sulfur gasoline will reduce as much pollution from the current vehicle fleet as taking 33 million cars off the road.By 2030, once the standards are fully implemented, the EPA projects that they’ll prevent between 770 and 2,000 premature deaths, 2,200 hospital admissions and asthma-related emergency room visits, and 19,000 asthma exacerbations. The American Lung Association praised the new standards as “life-saving.”“Cars, light trucks, and SUVs are major sources of pollution that can harm the health of our most vulnerable family members and neighbors, including those who suffer from asthma, lung and heart disease, as well as those who live, work and go to school near major roadways,” Harold Wimmer, national president and CEO of the American Lung Association, said in a press release. “We thank the Obama Administration and Environmental Protection Agency for putting these critical public health safeguards in place to protect communities across the nation.”The environmental community was pretty happy about the new standards, too.“Every metropolitan area in the country will benefit from it,” said Bill Becker of the National Association of Clean Air Agencies. “We know of no other air pollution control strategy that provides as substantial, cost-effective and immediate emission reductions as Tier 3. It’s expected to reduce nitrogen oxide emissions—which cause smog and soot—by over 260,000 tons, literally overnight, at a cost of less than a penny a gallon.”
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