Green Car Congress

JANUARY 15, 2012

The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Diesel particulate filters (DPF) and urea-based selective catalytic reduction (SCR) exhaust after-treatment systems thus have emerged as feasible strategies to meet the 2010 USEPA regulations.

Exhaust 218

Exhaust Diesel West Virginia 2007 218

Green Car Congress

JUNE 3, 2017

In a new study, a team from UCLA, with colleagues from the California Air Resources Board (ARB) and West Virginia University, measured total particle number emission factors (PNEFs) from six newly certified heavy-duty vehicles (HDVs) powered by diesel and CNG totaling over 6,800 miles of on-road operation in California.

Diesel 150

Diesel California West Virginia Virginia 150

Green Car Congress

JANUARY 11, 2017

Jens Hadler: from May 2007 until March 2011, Hadler worked for VW as head of Engine Development for VW. Bernd Gottweis: from 2007 until October 2014, Gottweis worked for VW as a supervisor with responsibility for Quality Management and Product Safety. Around 2012, hardware failures developed in certain of the diesel vehicles.

United States 150

United States Diesel EPA Emissions 150