Study: Diesel causes more smog than gas

By CCJ Staff on

Exhaust from diesel-powered engines produces 15 times more secondary organic aerosol — one of the main components of smog — than gas-powered engines per liter of fuel burned, says a study from the University of California-Berkeley.

According to a press release from the University, the study’s author estimates “that diesel exhaust is responsible for 65-90 percent of a region’s vehicular-derived SOA, depending upon the relative amounts of gasoline and diesel used in the area.”

SOA is said to cause respiratory problems and lower air quality, the release says. “We can now say that, while both motor vehicle sources are important for these ‘secondary’ particles, diesel is responsible for a larger portion, especially in regions such as the San Joaquin valley with a lot of diesel use,” says Allen Goldstein, the study’s principal investigator, in the press release. 

The California Air Resources Board and the U.S. Environmental Protection Agency helped support the study. 

 

5 comments
GoTime
GoTime

When you burn the same amount. A gallon of diesel makes about 15,500 more BTU's than a gallon of gas. Which means less diesel is used than gas to do the same thing. Also the reason there aren't any class 8 gas vehicles.

LAMech
LAMech

I am confined to my home due to occupational asthma from being a welder and extreme exacerbation of the problem resulting from truck driving for two years after quitting welding.  This is a real big problem!  I am F'd for life now!

PeteWiebe
PeteWiebe

they are so full of shit it is funny

 

A G ROSS
A G ROSS

the epa and carb are two of the biggest threats to the economy



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