Calif. Districts Investing In Low-Polluting School Bus Technology
Hoping to drastically cut polluting fumes, several of the largest districts in California are investing in environmentally friendly technology for school buses.
The state, the federal government, and British Petroleum-Amoco PLC are subsidizing most of the cost of the technology, which consists of an engine and a muffler-type device specially developed for low-sulfur diesel fuel. Major trucking companies are working on the new technology with the view that within six years it will essentially replace traditional diesel-run systems.
In the new systems, a particulate-filter trap replaces the muffler and acts as a muffler and catalytic converter to cut down on soot, hydrocarbon, and nitrogen oxides. Low-sulfur diesel fuel has only 15 parts per million of sulfur, vs. an allowable 500 parts per...
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