article thumbnail

Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

Green Car Congress

Black carbon has a negative impact on the environment and on human health. In addition, the inhomogeneity of the fuel mixture under stratified operation in GDI engines during the compression stroke tends to contribute to higher particulate emissions compared to the exhaust emissions from traditional PFI engines. Earlier post.).

article thumbnail

Environment Canada study finds vehicle exhaust a significant source of isocyanic acid; suggests consideration of new emission standard

Green Car Congress

Researchers at Environment Canada have found that vehicle exhaust is a significant source of isocyanic acid (HNCO), a toxic gaseous acid that is a product of various forms of combustion and a potential health concern. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.

Exhaust 207
article thumbnail

Researchers show mechanism by which diesel exhaust particles trigger respiratory “flare-ups”

Green Car Congress

Researchers at Imperial College London, working with colleagues from King’s College London and University of British Columbia, have demonstrated a mechanism by which diesel exhaust particles directly affect the lungs to initiate symptoms such as a tightening of the airways and cough. Robinson, Mark A. Birrell, John J. Adcock, Michael A.

Exhaust 170
article thumbnail

The importance of considering non-exhaust traffic emissions; the role of EVs

Green Car Congress

the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al.

Exhaust 150
article thumbnail

Study estimates 6% of lung cancer deaths in US and UK attributable to diesel exhaust

Green Car Congress

In 2012, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1). Earlier post.). Roel Vermeulen, Debra T. Diesel Emissions Health'

Exhaust 353
article thumbnail

U Toronto study measures GDI emissions in urban near-road environment

Green Car Congress

A study of emissions from gasoline direct injection (GDI) vehicles in an urban near-road environment in Toronto over a wide range of weather conditions (February 2014 to January 2015) found that—other than for NO x and CO—the GDI engines had elevated emissions compared to the Toronto fleet. —Zimmerman et al.

article thumbnail

EEA finds only mixed progress for Europe’s transport sector in meeting environment, climate goals; GHG emissions up 25% since 1990

Green Car Congress

Europe’s transport sector is making only mixed progress in meeting its environment, health and climate policy targets, according to the latest European Environment Agency (EEA) assessment which tracks the short and long-term environmental performance of this key economic sector across the European Union.