More details on SMOKE modeling

Table below lists sectors that we used to represent the year 2011 air pollutant emissions for this emission modeling system and notes on data preparation.


Platform Sector Abbreviation Description
EGU non-peaking units Ptegu 2011 NEI point source EGUs determined to operate as non-peaking units. Hourly 2011 CEMS are not used since the year of modeling is 2014.
EGU peaking units ptegu_pk Same as ptegu sector but limited to EGUs that are determined to operate as peaking units. Hourly 2011 CEMS are not used since the year of modeling is 2014.
Point source oil and gas pt_oilgas 2011NEIv1 point sources with oil and gas production emissions processes. Annual resolution.
Remaining non- EGU point Ptnonipm All 2011NEIv1 point source records not matched to the ptegu, ptegu_pk, and pt_oilgas sectors, except for offshore point sources that are in the “othpt” sector. Includes all aircraft emissions and some rail yard emissions. Annual resolution.
Agricultural Ag NH3 emissions from 2011NEIv1 nonpoint livestock and fertilizer application, county and annual resolution.
Area fugitive dust Afdust PM10 and PM2.5 from fugitive dust sources from the 2011NEIv1 nonpoint inventory including building construction, road construction, and agricultural dust, and road dust. County and annual resolution.
Nonpoint oil and gas np_oilgas 2011NEIv1 nonpoint sources from oil and gas-related processes. County and annual resolution.
EGU peaking units Ptegu Ptegu
Residential Wood Combustion Rwc This is a new sector in 2011NEIv1. NEI nonpoint sources with Residential Wood Combustion (RWC) processes. County and annual resolution.
Class 1 & 2 CMV and locomotives c1c2rail Locomotives and primarily category 1 (C1) and category 2 (C2) commercial marine vessel (CMV) emissions sources from the 2011NEIv1 nonpoint inventory. Midwestern states’ CMV emissions, including Class 3 sources, are from a separate year 2010 emissions inventory. County and annual resolution.
Commercial marine c3marine Category 3 (C3) CMV emissions projected to 2011 from year 2002 values. These emissions are not from the 2011NEIv1, but rather were developed for the rule called “Control of Emissions from New Marine Compression-Ignition Engines at or Above 30 Liters per Cylinder”, usually described as the Emissions Control Area- International Maritime Organization (ECA-IMO) study: http://www.epa.gov/otaq/oceanvessels.htm. (EPA-420-F-10-041, August 2010). U.S. states-only emissions (zero in Midwest); see othpt sector for all non-U.S. emissions. Treated as point sources to reflect shipping lanes, annual resolution.
Remaining nonpoint nonpt 2011NEIv1 nonpoint sources not otherwise removed from modeling or included in other platform sectors; county and annual resolution.
Nonroad nonroad 2011NEIv1 nonroad equipment emissions developed with the National Mobile Inventory Model (NMIM) using NONROAD2008 version NR08a. NMIM was used for all states except California and Texas, which submitted their own emissions to the 2011NEIv1. County and monthly resolution.
Onroad RatePerDistance Rateperdistance EPA ran MOVES2014 for 2011 in emissions factor mode. The MOVES lookup tables include on-network (RatePerHour) to represent exhaust and most evaporative emissions during running, tirewear, and brakewear modes. These data include the reference county and reference fuel month assignments that EPA used for the MOVES simulation.
Onroad RatePerHour Rateperhour EPA ran MOVES2014 for 2011 in emissions factor mode. The MOVES lookup tables include off-network (RatePerDistance) that represents emissions from extended idling and APU operation. These data include the reference county and reference fuel month assignments that EPA used for the MOVES simulation.
Onroad RatePerVehicle Ratepervehicle EPA ran MOVES2014 for 2011 in emissions factor mode. The MOVES lookup tables include off-network starts/stops (RatePerVehicle) that represents emissions from start exhaust and most evaporative emissions that occurs off-network. These data include the reference county and reference fuel month assignments that EPA used for the MOVES simulation.
Onroad RatePerProfile Rateperprofile EPA ran MOVES2014 for 2011 in emissions factor mode. The MOVES lookup tables include off-network (RatePerProfile) that represents emissions from evaporative fuel vapor venting. These data include the reference county and reference fuel month assignments that EPA used for the MOVES simulation.
Non-US Point Othpt Point sources from Canada’s 2006 inventory and Mexico’s Phase III 2012 inventory, annual resolution. Mexico’s inventory is year 2012 and grown from year 1999 (ERG, 2009; Wolf, 2009). Also includes all non-U.S. C3 CMV and U.S. offshore oil production, which are unchanged from the 2008 NEI point source annual emissions.
Non-US nonpoint and nonroad Other Annual year 2006 Canada (province resolution) and year 2012 (grown from 1999) Mexico Phase III (municipio resolution) nonpoint and nonroad mobile inventories.
Non-US onroad Othon Year 2006 Canada (province resolution) and year 2012 (grown from 1999) Mexico Phase III (municipio resolution) onroad mobile inventories, annual resolution.
Biogenic Biog No updates made (Stay constant)