Showing posts with label air quality. Show all posts
Showing posts with label air quality. Show all posts

Wednesday, October 11, 2006

Cleaner diesel fuel on the way

Leaving the Canadian news aside... the NY Times reported today about the development of a low-sulfur diesel fuel. This new fuel could represent a major advance in reducing smog-forming vehicle emissions and , indirectly, fuel efficiency.

Diesel is a generally a more efficient fuel. Small diesel cars can get over 40 miles per gallon, a level otherwise only achieved by hybrid gasoline-powered cars. The problem is that conventional diesel emits much more smog-forming and pollutants, like sulfur, and particulates. As the article reports, diesel vehicles, despite being vastly outnumbered in the US, produce 43% of the nitrogen oxides and more than two-thirds of the soot from American vehicles. If a cleaner-burning diesel becomes available, not only could it improve air quality, it could lead to development fuel efficient diesel and hybrid-diesel cars.