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Article #110: CARB Planning to Reduce NOx Emissions from Diesel Trucks

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A recent editorial in the San Jose editorial.
Mercury News focused on the pollution The proposed CARB regulations, which have
from diesel engines and the effect this been revised multiple times, require a
is having on California's air quality. contractor's diesel engine fleet to meet
"When it comes to air pollution from fleet average emission rate targets for
vehicles, it doesn't get more noxious particulate matter (PM). Large and medium
than the soot from diesel engines. The fleets (greater than 1,000 horsepower)
black particles accumulate in people's would also be required to meet fleet
lungs, contributing to asthma, heart average emission rate targets for oxides
problems and thousands of deaths in of nitrogen (NOx). Both targets decline
California every year. over time, requiring fleets to reduce
After more than a year and a half of their emissions even further.
crafting the language that will According to these proposed regulations a
constitute the new off-road diesel fleet that is unable to meet the NOx
equipment regulations, the California Air target, would have to turn over more than
Resources Board (CARB) will meet in Del 10 percent of its fleet per year. Turn
Mar on May 25 to decide whether to adopt over, as defined by CARB, means to
this language which targets what the re-power with a cleaner engine, replace a
Mercury calls 'smoke-belching vehicle with a new or used vehicle,
construction equipment - bulldozers, designate as low-use or decrease fleet
graders and the like - along with other size.
"off-road" vehicles used at airports, ski "With the current state of air quality in
resorts and warehouses.' California, these proposed regulations
Regulators would have to work with are a move in the right direction," said
affected industries to find ways to ease Bob Carroll, CEO of the Biofriendly
the expense of retrofitting or replacing Corporation. "NOx emissions are a threat
nearly 180,000 vehicles by 2025. Cost to the health of Californians and cost
estimates run from $3 billion to $13 effective methods of reducing these
billion - a sum that could make this the emissions need to be found and
most expensive air regulation in implemented.
California history, says the Mercury






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