article thumbnail

Study of lead isotopes provides insight into aerosols transport from Asia to US

Green Car Congress

About a third of the airborne lead particles collected at two sites in the San Francisco Bay Area came from Asia, a finding that underscores the far-flung impacts of air pollution and heralds a new way to learn more about its journey across vast distances. —John Christensen. —Stephanie Ewing. One site was on Mt.

Asia 199
article thumbnail

Study links air pollution and cyclone intensity in Arabian Sea; suggested solutions include diesel filters and two-stroke engines running on LPG fuel

Green Car Congress

Pollution is making Arabian Sea cyclones more intense, according to a study in the journal Nature. The Nature paper suggests that weakening winds have enabled the formation of stronger cyclones in recent years—including storms in 2007 and 2010 that were the first recorded storms to enter the Gulf of Oman. A three-kilometer (1.9-mile)-thick

Pollution 252
article thumbnail

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Green Car Congress

exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. The study exposed laboratory rats 80 hours a week, for up to 30 months, to emissions from a heavy-duty diesel engine meeting 2007 US EPA standards using new filters and other control technology.

Exhaust 150
article thumbnail

IEA: record oil output from US, Brazil, Canada and Norway to keep global markets well supplied

Green Car Congress

Boosted by economic growth in Asia and a resurgent petrochemicals industry in the United States, global oil demand will increase by 6.9 China remains the main engine of demand growth, but more stringent policies to curb air pollution will slow growth. of demand by 2023, the lowest number since 2007. mb/d by 2023 to 104.7

Brazil 218
article thumbnail

ABAT and Wuxi Angell Autocycle Introduce Three Hybrid Motorcycles

Green Car Congress

The new design increases total driving distance and optimizes the use of electric power to achieve 35% pollution reduction and a 20% increase in fuel efficiency, compared to comparable gasoline motorcycle engines. Wuxi Angell sold 50,000 and 70,000 electric bikes in 2006 and 2007 respectively.

article thumbnail

Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

Green Car Congress

They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology. Unregulated pollutants also include ozone precursors and bioaccumulative and toxic compounds. L) and medium-duty (6.4 L/2002 calibration and 6.4

Pollution 231
article thumbnail

Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

Green Car Congress

This includes the estimates in the 2007 Intergovernmental Panel on Climate Change (IPCC) Assessment, which were based on the best available evidence and analysis at that time. The report’s best estimate of direct climate influence by black carbon is about a factor of two higher than most previous work.