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Old October 8th, 2010, 10:52 AM   #1
RyeBread
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Default California grossly miscalculated pollution levels in a scientific analysis used to to

http://www.sfgate.com/cgi-bin/articl...BAOF1FDMRV.DTL

Overestimate fueled state's landmark diesel law

Wyatt Buchanan, Chronicle Sacramento Bureau
Friday, October 8, 2010




California grossly miscalculated pollution levels in a scientific analysis used to toughen the state's clean-air standards, and scientists have spent the past several months revising data and planning a significant weakening of the landmark regulation, The Chronicle has found.


The pollution estimate in question was too high - by 340 percent, according to the California Air Resources Board, the state agency charged with researching and adopting air quality standards. The estimate was a key part in the creation of a regulation adopted by the Air Resources Board in 2007, a rule that forces businesses to cut diesel emissions by replacing or making costly upgrades to heavy-duty, diesel-fueled off-road vehicles used in construction and other industries.
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