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-----Original Message-----
From: Gould, Tammy [mailto:Tammy.Gould@maine.gov]
Sent: Wednesday, May 12, 2004 3:48 PM
To: air-inventory@informe.org
Subject: air-inventory Items from EPA
Items from EPA
----------------------------------------------------------------------- (1) Ammonia Emissions from Anthropogenic Nonagricultural Sources
(2) Leavitt signs nonroad diesel rule ----------------------------------------------------------------------- (1) Ammonia Emissions from Anthropogenic Nonagricultural Sources
From: "NEI Listserv" <NEI_Listserv@epamail.epa.gov>
Date: Mon, 10 May 2004 15:30:16 -0400 National Emission Inventory - Public review of new report entitled
"Ammonia Emissions from Anthropogenic Nonagricultural Sources" - April
2004, Draft Final Report The Emission Factor & Inventory Group announces the availability of this draft report. Comments are due by June 30, 2004. The contact is Roy
Huntley at(919)541-1060, or Huntley.Roy@epa.gov. The report is available online at http://www.epa.gov/ttn/chief/eiip/techreport/volume03/eiip_areasourcesnh3.pdf.
Ammonia (NH3) emissions are an important contributor to fine particulate
matter (PM) formation. Consequently, increased attention is being paid to
accurate quantification and characterization of NH3 emissions. A 1994
United States (U.S.) Environmental Protection Agency (EPA) report entitled
Development and Selection of Ammonia Emission Factors," hereafter referred
to as the "1994 guidance," contains the results of a literature review and compiled NH3 emission factors (Battye et al., 1994). The purpose of this new emissions guidance for "anthropogenic sources" is to update the
materials presented in Chapters 4 (Ammonia Emissions in Industry), 5 (Ammonia Emissions from Combustion), and portions of Chapter 6
(Miscellaneous Sources) of the 1994 guidance.
(2)Leavitt signs nonroad diesel rule (from Argus Air Daily, 5/11/04) EPA Administrator Mike Leavitt signed the nonroad diesel rule May 11,
placing strict emissions and sulfur level requirements on the engines and diesel
fuel used by construction and agricultural equipment. The package of engine and diesel fuel standards will lead to a greater
than 90 pct reduction in emissions of particulate matter and nitrogen oxides
once the national inventory of nonroad diesel equipment is replaced,
according to EPA. This includes a 738,000 ton cut in annual NOX emissions and a
129,000 ton reduction in PM. Nonroad equipment covered by the rule currently
accounts for 47 pct of diesel PM and 25 pct of NOX from mobile sources nationwide.
Leavitt hailed the rule as another milestone in US efforts to reduce air
pollution, and noted that the standards will benefit localities that are
trying to comply with federal air quality standards. "State and local communities
need a series of tools to solve this problem, particularly from mobile
sources," he said. The rule will include tougher standards for diesel engines used by nonroad
equipment, phased in from 2008 to 2014 and based on engine horsepower. In
addition, refiners will have to reduce the sulfur content in diesel fuel
from 3,400 parts per million (ppm) to 500 ppm beginning in 2007 and then to 15
ppm in 2010. By moving forward simultaneously with emissions and fuel
standards, Leavitt said the engine manufacturers will be able to include
pollution controls, similar to catalytic converters in passenger cars, that
will take advantage of the low sulfur diesel. In a move pushed for by environmentalists, EPA is requiring fuel for marine
and locomotive engines to meet the 15 ppm cap in 2012. The two-year delay
will allow for the development of emissions control technology for these
engines, Leavitt said. To spur the development of effective pollution controls, EPA also
announced its intent to consider new emission standards for marine and
locomotive engines. The standards may be modeled on the nonroad and highway
diesel rules to emphasize PM reductions. Without new standards, EPA
estimates that by 2030 marine and locomotive diesel engines will contribute about 27
pct of mobile source NOX and 45 pct of mobile source diesel PM2.5 emissions.
EPA says it will consider including existing locomotive engines in the
rule, which would likely require retrofitting engines with equipment such as particulate traps. The marine engine standard could potentially apply to
recreational and commercial engines, excluding commercial vessels, the
agency said. More information and the rule may be downloaded at:
http://www.epa.gov/nonroad-diesel/2004fr.htm
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