Secondary organic aerosols and vehicle exhaust

A study of vehicular smog reports that the production of secondary organic aerosols (SOA)—a pollutant affecting climate and human health—from vehicle exhaust depends on the ratio of organic gases to nitrogen oxides (NOx) in the atmosphere; a model of this relationship estimates little change in SOA production in Los Angeles over the next two decades, despite large decreases in vehicle emissions, highlighting the importance of integrated emission control policies for NOx and organic gases.

Article #16-20911: “Reducing secondary organic aerosol formation from gasoline vehicle exhaust,” by Yunliang Zhao et al.