Post-Dieselgate: Evidence of NO_x Emission Reductions Using On-Road Remote Sensing.

ABSTRACT: The Dieselgate scandal which broke in September 2015 demonstrated that vehicle manufacturers, such as the Volkswagen Group (VWG), engaged in software-based manipulation which led to vehicles passing laboratory-based emission testing limits but were far more polluting while being driven on roads. Using 23 000 on-road remote sensing measurements of light-duty Euro 5 diesel vehicles in the United Kingdom between 2012 and 2018, VWG vehicles with the "Dieselgate-affected" EA189 engine demonstrated anomalous NO_x emission behavior between the pre- and post-Dieselgate periods which was not observed in other vehicle makes or models. These anomalous changes can be explained by voluntary VWG hardware and software fixes which have led to improved NO_x emission control. The VGW 1.6

SUBMITTER: Grange SK 

PROVIDER: S-EPMC7304879 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature