Reactive Nitrogen Species Emission Trends in Three Light-/Medium-Duty United States Fleets

Environmental Science & Technology
Gary A Bishop, Donald H Stedman

Abstract

Repeated, fuel-specific, emission measurements in Denver (2005/2013), Los Angeles (LA) (2008/2013), and Tulsa (2005/2013) provide long-term trends in on-road reactive nitrogen emissions from three light-/medium-duty U.S. fleets. Reductions in oxides of nitrogen (NOx) emissions ranged from 21% in Denver (from 5.6 ± 1.3 to 4.4 ± 0.2 g of NOx/kg of fuel) to 43% in Tulsa (from 4.4 ± 0.3 to 2.5 ± 0.1 g of NOx/kg of fuel) since 2005, while decreases in fleet ammonia (NH3) emissions ranged from no change in Denver (from 0.45 ± 0.09 to 0.44 ± 0.02 g of NH3/kg of fuel) since 2005 to a 28% decrease in LA (from 0.80 ± 0.02 to 0.58 ± 0.02 g of NH3/kg of fuel) since 2008. The majority of the reduction in gasoline vehicle NOx emissions occurred prior to the full implementation of the Tier II emission standards in 2009. High in-use NOx emissions from small-engine diesel passenger vehicles produced a significant contribution to the fleet means despite their small numbers. NH3 emissions decreased at a slower rate than NOx emissions as a result of modest NH3 emission reduction among the newest vehicles and increased emissions from a growing number of older vehicles with active catalytic converters. In addition, the reactive nitrogen emissions fr...Continue Reading

References

Jun 8, 2006·Applied Spectroscopy·Daniel A BurgardDonald H Stedman
Dec 13, 2006·Environmental Science & Technology·Daniel A BurgardDonald H Stedman
Apr 30, 2008·Environmental Science & Technology·Gary A Bishop, Donald H Stedman
Mar 13, 2009·The New England Journal of Medicine·Michael JerrettMichael Thun
Apr 13, 2010·Environmental Science & Technology·Gary A BishopTao Zhan
Mar 12, 2013·Journal of the Air & Waste Management Association·C Arden PopeDouglas W Dockery
Dec 29, 2013·Environmental Science & Technology·Fabien Paulot, Daniel J Jacob
Nov 27, 2014·Environmental Science & Technology·Gary A Bishop, Donald H Stedman
Dec 18, 2014·Environmental Science & Technology·Heather SimonNeil Frank
Dec 1, 1999·Journal of the Air & Waste Management Association·Peter J PoppDonald H Stedman
Jul 1, 1996·Journal of the Air & Waste Management Association·Gary A BishopLowell Ashbaugh

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Citations

May 4, 2016·Environmental Science & Technology·Gary A BishopOscar Atkinson
Oct 1, 2016·Journal of the Air & Waste Management Association·Ha T TrinhNorimichi Takenaka
Feb 1, 2017·Environmental Science & Technology·Kang SunTong Zhu
Feb 2, 2017·Environmental Science and Pollution Research International·Duong Huu HuyNorimichi Takenaka
May 16, 2017·Environmental Science & Technology·Xiaolin TengXiaohong Yao
Apr 19, 2016·Faraday Discussions·David C CarslawMatthew Keenan
Mar 29, 2018·Journal of the Air & Waste Management Association·H Christopher Frey
May 2, 2019·Journal of the Air & Waste Management Association·Gary A Bishop
Jan 2, 2021·Environmental Pollution·Qijun ZhangHongjun Mao
Dec 3, 2020·Environmental Science & Technology·Naomi J FarrenDavid C Carslaw
May 1, 2018·Environmental Pollution·Elizabeth M CookSharon J Hall
May 7, 2021·Environmental Science & Technology·Katelyn A YuRobert A Harley
May 16, 2018·Environmental Science & Technology·Gary A Bishop, Molly J Haugen
Jun 6, 2018·Environmental Science & Technology·Brian C McDonaldMichael Trainer
Nov 9, 2018·Environmental Science & Technology·Molly J HaugenDaniel K Carder
Nov 29, 2021·The Science of the Total Environment·Zexuan ZhangShihua Qi
Dec 7, 2021·Environmental Science. Processes & Impacts·Daniel NiepschGina Cavan

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