[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]
Canadian study finds commuters may be exposed to increased levels of traffic-related pollution
December 30, 2014
A study by researchers led by a team from the Air Health Science Division of Health Canada (the Federal department responsible for helping Canadians maintain and improve their health) finds that commuters may be exposed to increased levels of traffic-related air pollution owing to close proximity to traffic-emissions. The study also found that traffic characteristics, land use, road types, and meteorology are important determinants of these exposures.
As reported in their papaer in the ACS journal Environmental Science & Technology, the team collected in-vehicle and roof-top air pollution measurements over 238 commutes in Montreal, Toronto, and Vancouver, Canada between 2010 and 2013. They used voice recordings to collect real-time information on traffic density and the presence of diesel vehicles; multivariable linear regression models were used to estimate the impact of these factors on in-vehicle pollutant concentrations (and indoor/outdoor ratios) along with parameters for road type, land use, and meteorology.
Canada aligns with US on light-duty vehicle GHGs, Tier 3 regulations and heavy-duty vehicle fuel efficiency
September 23, 2014
Canadian Environment Minister Leona Aglukkaq announced developments on three new regulatory initiatives to further support Canada’s efforts to curb greenhouse gas (GHG) emissions and to provide cleaner air through lower air pollutant emissions from cars and trucks. These vehicles and fuels regulatory initiatives are aligned with those of the United States.
GHG regulations. The final Regulations Amending the Passenger Automobile and Light Truck Greenhouse Gas Emission Regulations for model year 2017 and beyond will be published in the Canada Gazette, Part II, on 8 October. These regulatory amendments represent further action to reduce GHG emissions while building on the existing Regulations for 2011-2016 model year vehicles.
Details on how Enbridge will expand capacity of Alberta Clipper oil sands crude pipeline without US review
August 23, 2014
Enbridge has devised a way to ship more oil sands crude from Alberta to the US via its Alberta Clipper pipeline without getting further tangled in the type of review that has kept TransCanada’s Keystone XL pipeline proposal mired in limbo for years: switching crude from one pipeline in its existing system to another before it crosses the border and then back again.
The US State Department, which bears the responsibility for approving cross-border energy projects, said that Enbridge can indeed proceed with its plan under authority granted by previously issued permits.
Chrysler/McMaster lightweight materials project focusing on door side impact beam; Al and Mg casting
June 04, 2014
In October 2013, Chrysler entered a $3.9-million research project supported by the Canadian government to explore ways to leverage the weight-saving properties of aluminum and magnesium alloys for vehicle production. (Earlier post.) The primary academic partner in the project is McMaster University in Ontario, with Ryerson University and CANMET, an agency of Natural Resources Canada, as other partners in the project.
In an update on the progress of the project, Steve Logan, responsible for Advanced Lightweight Programs in Chrysler’s Materials Engineering Group, said that the team is looking at components for body and chassis, and specifically focusing on a door side impact beam.
NREL initial report on performance of BC Transit fuel cell electric buses
February 17, 2014
Researchers from the National Renewable Energy Laboratory, commissioned by the California Air Resources Board (ARB), have issued their initial evaluation of the hydrogen fuel cell buses in operation at BC Transit. The report covers two years of revenue service data on the buses from April 2011 through March 2013.
In 2012, NREL developed a guideline for evaluating the technology readiness level (TRL) for fuel cell electric buses (FCEBs). TRLs range from concept design at TRL 1 up to full commercialization and deployment at TRL 9. Using this guide, the NREL team assessed the BC Transit buses to be at TRL 7: full-scale validation in a relevant environment. During the two-year data period analyzed for the report, the FCEB fleet accumulated more than 2.1 million kilometers (1.3 million miles) and more than 156,000 hours on the fuel cell power plants. Overall the FCEBs have an average fuel consumption of 15.48 kilograms of hydrogen per 100 kilometers. This equates to a fuel economy of 4.53 miles per diesel gallon equivalent (mi/DGE). The buses have an average availability of 69%.
State Department releases Keystone XL Final Supplemental Environmental Impact Statement
February 01, 2014
|Incremental well-to-wheels GHG emissions from WCSB Oil Sands Crudes Compared to Well-to-Wheels GHG Emissions from Displacing Reference Crudes Click to enlarge.|
The State Department released the long-anticipated and voluminous Final Supplemental Environmental Impact Statement (Final Supplemental EIS) for the proposed Keystone XL oil pipeline project. The document is posted on State’s Keystone project site, which it has run since the beginning of the Keystone XL Presidential permit process in 2008.
The analysis in the Final Supplemental EIS builds on the Draft Supplemental Environmental Impact Statement released on 1 March 2013 (earlier post) as well as the documents released in 2011 as part of the previous Keystone XL Pipeline application. Notable changes since the prior Draft Supplemental Environmental Impact Statement include an expanded analysis of potential oil releases; an expanded climate change analysis; an updated oil market analysis incorporating new economic modeling; and an expanded analysis of rail transport.
Initial results from first phase of road trials for 40-ft BYD electric bus in Canada
January 25, 2014
|2013 STO-AVT electric bus test results chart: BYD Electric Bus energy consumption (Wh/km) over speed (km/h). Click to enlarge.|
The first phase of a ten-month trial for a 40-foot BYD battery-electric bus (which commenced the Summer of 2013) was completed in Gatineau, Québec and Ottawa, Ontario in December. (Although the bus drive is zero-emissions, in frigid weather bus-heating was supplemented with a small diesel heater integrated into the bus).
The evaluation, performed by the Société de transport de l’Outaouais (STO) in conjunction with AVT (the Société de gestion et d’acquisition de véhicules de transport), found that the average speed of drivers on Gatineau and Ottawa routes was 23 km/h (14 mph), and the resulting distance the BYD bus could travel at this average speed was 250 km (155 miles)—the equivalent of 1.3 kWh/km without air-conditioning and 1.5 kWh/km with air-conditioning, and full passenger loads).