Southern California enacts new smog rules on refineries

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FILE - This aerial photo shows the Standard Oil Refinery in El Segundo, with Los Angeles International Airport in the background and the El Porto neighborhood of Manhattan Beach, in the foreground, May 25, 2017. The board of the South Coast Air Quality Management District adopted rule changes, Friday, Nov. 5, requiring emissions limits on oxides of nitrogen that could remove tons of smog-forming pollutants from the air. (AP Photo/Reed Saxon, File)
Robert Jablon The Associated Press DIAMOND BAR (AP) – Southern California air regulators approved new restrictions on area oil refineries and other factories that could remove tons of smog-forming pollutants from the air Friday, Nov. 5. The board of the South Coast Air Quality Management District adopted rule changes requiring emissions limits on oxides of nitrogen that will affect nine refineries and seven plants that produce asphalt, biofuel plants, hydrogen and sulfuric acid. Oxides of nitrogen, collectively known as NOx, form when fuel is burned at high temperatures. The gases can be produced by cars and industrial sources such as refineries and power plants. They are a key ingredient in producing ozone pollution. The new rules will reduce NOx emissions by around 8 t
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