1 Unit Conversions and EI Codes Angelique Luedeker ITEP/TAMS Center

2 Unit Conversions and TEISS TEISS does some of the math for you Emission Factor (EF) x Activity Data = Emissions TEISS provides EF You provide activity data

3 Activity Data Example The Total Area Tilled value you enter needs to be in units of acres If you have collected data in other units, for example, square miles, you need to convert square miles to acres

4 Emission Factors EF is basically a factor for how much pollutant is emitted for a particular throughput Examples Lbs of PM 10 emitted/acre of area tilled Lbs of PM 2.5 emitted/vehicle mile traveled Lbs of mercury emitted/ton of coal burned

5 Unit Converter in TEISS TEISS has unit conversion tool

6 TEISS Unit Conversion Tool Area is selected, shows list of area units

7 TEISS Unit Conversion Tool Mass is selected, shows list of mass units

8 Energy Unit Conversion Converting energy units often requires knowing energy density of a given material Energy density can vary within the same material TEISS Unit Converter tool cannot convert energy to other unit categories, such as volume

9 Energy Density Examples Natural gas from different sources provides differing amounts of energy High-heating value gas has 1027 BTUs/ft 3 Low-heating value gas has 930 BTUs/ft 3 Most gas is somewhere in-between Different kinds of wood provide different amounts of heat when burned

10 Energy Density Defaults What if you don’t know energy density of your reservation’s natural gas or wood? Use defaults For natural gas, EPA’s AP-42 gives 1020 BTUs/ft 3 For wood, TEISS provides a converter within the wood-burning calculators Allows you to enter volume of wood (cords) and specify wood type Then it calculates tons of wood per cord required to do calculation

11 CODES!!! Why do we need them? Computers organize information by codes Standardize descriptions and categories Examples States – CO, Co, Colo., Colorado A computer sees 08, the FIPS code for Colorado Takes guesswork out One long code signifies a paragraph-long process description

12 Tribal EIS Codes FIPS - Federal Information Processing Standard codes are used for states and counties Tribal EIS codes: Kickapoo = 861 (3 digit) States and counties use FIPs codes Example Kansas FIPS code = 20 (2 digit) Brown County FIPS code = 013 (3 digit)

13 SCC - Source Classification Codes Approximately 9,000 valid codes Maintained / categorized by U.S. EPA Source Classification Point = 8 characters Non point, Non-Road, On-Road, Event and Biogenic = 10 characters EVERY PROCESS in TEISS must have an SCC! Used as primary identifying data element in EPA's National Emission Inventory (NEI)

14 SCC for Point Sources Example: = 8-characters For each SCC, there are four levels of descriptions SCC 1 Description (3): Industrial Processes SCC 3 Description (02): Food and Agriculture SCC 6 Description (005): Feed and Grain Terminal Elevators SCC 8 Description (01): Shipping and Receiving

15 SCC for Nonpoint and Other Sources Example : = 10 characters For each SCC, four levels of descriptions SCC 2 Description (26): Waste Disposal, Treatment, and Recovery SCC 4 Description (26-10): Open Burning SCC 7 Description ( ): Residential SCC 10 Description ( ): Household Waste Only 1 of each SCC in a location (reservation) because nonpoint SCC emissions are combined (unless emission type is diff: evap, exhaust, refueling are diff types of emissions from same SCC)

16 SIC and NAICS Codes SIC - Standard Industrial Classification NAICS – North American Industry Classification System Economic sector codes Beginning in 1997, SIC replaced by NAICS NAICS reorganizes categories on production/process-oriented basis EVERY POINT SOURCE in TEISS must have a NAICS Code!

17 TEISS View –NAICS Codes – How to Find Them

18 Homework due in 5 days (2 files): Answer the questions in the UnitConversionExercise document. There are two pages of questions Use TEISS to determine SCCs of sources in the Homework_EICodes document your answers to both assignments to the instructors