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I checked the original document previously. I remember the “transportation” is only for transportation, such as on road vehicles, airplanes, locomotives, …not nonroad equipment. Again, I will miss the call tomorrow.
Chun Yi
-----Original Message-----
Chun Yi,
Let’s discuss this briefly on tomorrow’s call to see if anyone has any input on this. Is it possible that “transportation” includes that used by non-road engines? It seems like the EIA rather than EPA would be the ones to know how this data was derived. Assuming that the nonroad fuel usage is included in the first three categories you list, would there be any way to back it out to correct the fuel use numbers?
Jon
~~~~~~~~~~~~~~~~~~~ Jon Dettling 734-274-5183 dettling@glc.org
From: Wu, Chun
Yi [mailto:Chun.Yi.Wu@state.mn.us]
Buzz and Jon,
You might saw this message previously from me. I checked with EPA. They do not have an answer. We need to figure it out. Otherwise there is a double counting problem. Buzz, how did you deal with this issue?
The DOCUMENTATION FOR THE FINAL 2002 NONPOINT SECTOR (FEB 06 version) NATIONAL EMISSION INVENTORY FOR CRITERIA AND HAZARDOUS AIR POLLUTANTS, July 2006 (ftp://ftp.epa.gov/EmisInventory/2002finalnei/documentation/nonpoint/2002nei_final_nonpoint_documentation0206version.pdf ) indicats the use of statistics from the Energy Information Administration (EIA) for fuel consumption data for nonpoint sources for residential, commercial/institutional, and industrial combustion.
The EIA statistics separates the consumption to 5 sectors: residential, Commercial/institutional, industrial, transportation, and electrical power generation. The nonroad sources could be in the first 3 sectors. In EPA's documentation, fuel consumption for point sources was subtracted from total to obtain fuel consumption for nonpoint sources. However, there is no consideration for nonroad mobile sources. I think we should discuss this issue in the EI community.
Chun Yi Wu, Ph.D., P.E.
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