May 2015, Vol 242, No. 5

Features

Study Shows Decreasing Emissions from Gas Distribution Systems

A study by a team from Washington State University (WSU) showed emissions throughout the United States coming from of natural gas distribution systems have decreased in the past 20 years, falling to levels 36-70% below current estimates. The reduction were attributed to significant upgrades at metering and regulating stations, improvements in leak detection and maintenance activities and replacement of older pipeline materials. “It was initially surprising to see such a large change in emissions for M&R stations, but after we understood how much these stations have changed, then it was understandable,” said Regents Professor Brian Lamb in WSU’s Laboratory for Atmosph

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