2002 DEER Conference

[wxman]

The presentations made at the 2002 "Diesel Engine Emissions Reduction" (DEER) conference in late August are now available here.

There are many interesting presentations, but one that is particularly interesting is this one.

Gasoline exhaust and gasoline vapor account for ~80 percent of ambient NMHC in on-road samples and at regional air monitoring locations suggesting that gasoline emissions are responsible for the majority of ozone found in the SoCAB.

Kind of makes you wonder why pickup truck diesels are forced in California (and will be forced in the rest of the U.S. in 2004) to use EGR to lower NOx emissions when lowering ambient NOx concentrations actually increases ozone levels according to this study! NMHCs (non-methane hydrocarbons) are the main culprit to the ozone problem. Ban the gassers!