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New Exhaust Filter Enables Older Trucks to Surpass Air Emission Requirements
By Nicole Townsend | Wednesday March 26, 2008
SACRAMENTO, Calif. – With the clock running down to replace or retrofit older polluting diesel-powered big rigs, an innovative new exhaust filter system has just completed testing in California. The test has demonstrated that adding the new exhaust filter system on older trucks results in these trucks burning cleaner than brand new trucks and well-below the new air emissions standards.
In a joint partnership involving the Sacramento Metropolitan Air Quality Management District (SMAQMD), the Sacramento Emergency Clean Air and Transportation program (SECAT) and Raley’s Family of Fine Stores, 20 older trucks were retrofitted with the new exhaust filtration system and tested for more than 1,000 hours as the trucks traveled throughout Northern California hauling grocery products to the Company’s stores. The exhaust filter system, created by Johnson Matthey, reduces the smog-forming emissions by more than 80% and virtually eliminates diesel soot emissions making the familiar black clouds of exhaust emitted from a truck’s tailpipe a relic of the past. In fact, the emissions from the filter were so clean that the chrome exhaust pipes on the tested truck fleet retained a clean silvery shine throughout the testing period.
“These tests proved that the new exhaust filtration system is extremely effective in cutting a variety of emissions which result in the trucks being able to meet the new clean air standards,” said Sacramento County Supervisor Roger Dickinson. “Thanks to Raley’s, this partnership has provided truck owners in California with an effective, affordable means to keep their trucks on the road and meet the tough state requirements being proposed for trucks. This collaborative effort is not only a breath of fresh air, but it provides safer air for all of us.”
In California, it is estimated that two-thirds of targeted emissions come from mobile sources and 70 – 80 percent of that comes from diesel. Many communities are struggling to meet federally mandated clean-air deadlines and are looking for ways to reach the clean air goals. In Sacramento, the SMAQMD and the SECAT program approached Raley’s to request the grocery company’s participation in a testing program to measure the effectiveness of the exhaust filters. The test sought to verify the capabilities of the filter in reducing both NOx and particulate emissions and to determine the performance impact on the truck’s normal operations.
Though Raley’s fleet utilizes newer trucks that meet all current air emission requirements, it did make available 20 older trucks for the testing program and had each truck retrofitted with the new filtration system. The results were as hoped — the technology proved beneficial and, looking to the future, provides existing truck owners with a proven means to retrofit their trucks and avoid having to replace their existing vehicles.
“Raley’s has a long history of working to reduce our impact on the environment, thus we are proud to be the first retailer in California to employ this new filter system and operate the cleanest burning truck fleet in the world,” said Bill Coyne, president and CEO of Raley’s Family of Fine Stores. He added, “Our partnership with the Sacramento Air Quality Management District and the Sacramento Emergency Clean Air Transportation Program has been extremely productive and it will benefit a variety of industries and, most importantly, millions of consumers for years to come.”
With more than 1,000 hours of testing, the SMAQMD has proven that the technology is effective and functioning. Next, the California Air Resources Board (CARB) will run its own tests to verify the findings of the SMAQMD. If the CARB testing results match the SMAQMD results, it is anticipated that CARB will adopt a new statewide regulation mandating these filters in all truck fleets in California.
“Our results prove that these filters work and they can withstand the demands of any functioning truck’s exhaust system,” said Coyne. “We are excited that this partnership may result in thousands of the world’s cleanest burning Class 8 trucks operating throughout California each and every day in the very near future.”
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