美国纽约都市运输管理局(MTA)下属的Metro-North铁路公司的内燃机车计划从2008年1月开始改用超低硫含量柴油,这比美国环保局规定的截止日期提前了5年。该铁路公司估计,采用超低硫含量柴油将可导致碳氢化合物减排13%、CO减排已与它的燃油供应商洽谈了一份燃油价格协议,并得到了 The diesel locomotives of the Metro-North Rail Company, a subsidiary of the New York Metropolitan Transportation Authority (MTA), are scheduled to switch to ultra-low sulfur diesel from January 2008, five years ahead of the deadline set by the U.S. Environmental Protection Agency. The railroad company estimates that the use of ultra-low sulfur diesel will result in a 13% reduction in hydrocarbon emissions and the CO reduction has negotiated a fuel price agreement with its fuel suppliers and received