PNNL scientists, working with researchers at Washington State University and Tsinghua University, discovered a mechanism behind the decline in performance of an advanced copper-based catalyst. The team’s findings, featured on the cover of the journal ACS Catalysis, could aid the design of catalysts that work better and last longer during the NOx conversion process.
Using exhaust gas measurements taken from the roadside, a team from the University of York and Empa was able to prove the “Dieselgate” scandal has led to positive results. The forced retrofitting of thousands of VW diesel engines saves the environment throughout Europe considerable amounts of Nitrogen oxide (NOx).
HARC (Houston Advanced Research Center) announces research analysis to study effects of COVID-19, associated stay-at-home orders, and the subsequent effects on air quality. Specifically, the changes in air quality measuring nitrogen oxides (NOx); benzene, toluene, ethylbenzene, xylene (BTEX); and ground-level ozone (O3).
The fight against harmful ozone is under legal threat. Air quality and carbon emissions regulations are currently in limbo in courts and congress, from core legislation from the 1970s to rules from the last U.S. administration. This study models the future losses in the fight to drive down respiratory-damaging, ground-level ozone if the regulations go away.