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SOA from biomass burning emissions
Ali published his work on modeling secondary organic aerosol (SOA) formation from biomass burning emissions in Environmental Science and Technology. He found that oxgyenated aromatics – and to a certain degree heterocyclics – contribute substantially to SOA! Fun fact – guaiacol, an important SOA precursor, is also responsible for the aroma in whisky or scotch. SOA from biofuels
Charles published his work on chamber measurements and modeling in Environmental Sciences: Processes and Impacts to understand secondary organic aerosol production from evaporated biofuels. He found some proposed fuel molecules/mixtures to produce more SOA than regular gasoline. Co-Optima, take notice!
Grilles and grills! (all credit to Albert Presto from CMU)
In two separate studies, we reported on properties and impacts of aerosol emissions from two different sources: diesel engines and residential cookstoves. In the work published in Atmospheric Environment, we determined the volatility of primary organic aerosol from a modern-day, non-road diesel engine. In the work published in Aerosol Science and Technology, we measured the emissions and radiative impacts of sub-10 nm particles from a range of dirty-to-clean cookstoves.
Hike up to Ouzel Lake in summer 2019 (and how Charles broke his shoe!)
Group photo from summer 2019
IVOCs, NOx, and vapor wall losses – what they mean for urban OA
Ali published his first paper in Atmopheric Chemistry and Physics on modeling the abundance and composition of organic aerosol in southern California. Lots of details in the paper!
Biodiesels and aftertreatment make for cleaner diesels
Naman published his work on studying the oxidative potential of diesel exhaust particles via a chemical assay in Environmental Sciences: Processes and Impacts. He observed that both biodiesel and aftertreatment use reduced the OP of exhaust particles and this OP was strongly linked with soot emissions.
IVOCs dominate SOA from diesel exhaust
Sailaja published her Masters work in Atmospheric Chemistry and Physics where she confirmed that intermediate-volatility organic compound emissions were the dominant precursors of secondary organic aerosol formation in diesel exhaust.
Group photo from fall 2018
