Why Diesel?

Why Now?

Diesel and Particulates• In 1991, Weber County

exceeded the limit on Carbon Monoxide and other gasses. Diesel and its high particulate components were not considered.

• In 2006, the EPA designated Weber County as a non-attainment area for PM 2.5. (Weber County had been in non-attainment for PM 10 since 1987.)

Since 2009, Weber County has had more Red Days than our neighbors

• Our proposal addresses lightweight diesel vehicles that have been tampered with or are broken

• Currently have no way to address non-compliant diesels or public complaints regarding them.

• Does not apply to Morgan because they are not part of the Wasatch Front non-attainment area

• There are days when Weber County has higher particulate readings than Salt Lake and Davis

Asthma: 10 to 20 Utahns visit the ER daily

• By expanding I/M testing for 8,000 diesel vehicles in Weber County, this proposal is a logical, low-cost way to address our air quality and improve our community’s health

Utah ER Visits due to Asthma by Month, 2000-2009 -- Utah Department of Health

On BoardDiagnostics

• Technology, testing equipment has changed• Infrastructure for

testing already exists• Most people who drive

a diesel also own gas vehicles and understand the process.