The filterable particulate emissions
were extremely low due to the advanced emission controls employed at the plant.
We found that the only testing variable that reduced particulate emissions
was use of a diesel particulate filter, and these reductions of more than 90 percent were similar for both the hybrid and conventional diesel bus types," said Holmen.
Early compliance was achieved by permanently retiring 181 trucks, deploying 415 trucks that operate on clean-burning natural gas and retrofitting 794 trucks with "best available control technologies"--special pollution controls such as oxidation catalysts or filters--to reduce harmful particulate emissions
Four boilers at the two plants allegedly exceeded Virginia's allowable particulate emission
rates, according to the EPA's complaint.
In tests conducted by Zurich, Switzerland-based Technik Thermische Maschinen (TTM), a bi-metallic formulation of Platinum Plus reduced engine-out particulate emissions
by 15-30 percent from a Liebherr-914 engine widely used in construction and mining applications.
All stoves manufactured after July 1988 have had to meet EPA health standards, and those made after July 1992 have to be either catalyst-equipped with a maximum particulate emission
level of 4.
Those controls, combined with the rules proposed this month, should reduce particulate emissions
from diesel vehicles by roughly 86 percent, according to EPA data.
A Level 3+ VDEC device reduces particulate emissions
in accordance with CARB s ultra-low emissions requirement for transport refrigeration units, also known as ULETRU, while also reducing nitrogen oxides.
Diesel Truck and Buses Have Reduced NOx Emissions by 99% And Particulate Emissions
by 98%"A complete transformation of diesel technology in the U.
Particulate CEM (continuous emissions monitor) meets environmental regulations such as USEPA MACT and other standards like ASTM D22 for monitoring particulate emissions
from fabric flter baghouses, cartridge type dust collectors, cyclones, and some ESPs (electrostatic precipitators).
As a result, Maersk expects particulate emissions
to be reduced by 73 percent, sulfur dioxide by 92 percent and nitrogen oxide by at least 10 percent.
The University of California, Riverside (UCR) recently announced that graduate student researcher Wei Li has won the South Coast Air Quality Management District (SCAQMD)-sponsored Ultrafine Particle Graduate Research Competition for a project titled "Characterization of Particulate Emissions
of Extremely Low-Emitting Vehicles.