1. Elements of EI Data Management
Melinda Ronca-Battista
ITEP/TAMS Center 1

2. Homework Discussion
Are there any questions on the unit conversion exercise?
Does anyone have an experience with unit conversions that they would like to share?

3. Data management is keeping track of information used to estimate emissions

4. The “answer” you get from an EI is...
Sources of air pollution
Amount of air pollution from each source

5. The “answer” you get... (cont.)
Example
Residential woodstoves is a source of emissions
10 tons per year of CO
50 tons per year of PM10
…and so on for other criteria pollutants

6. Data Management
Data management is describing how you got those numbers
“Road map” to how you got answer

7. Data Management – How? Keep information in notes
Include information in EI report
Store in spreadsheet or database

8. Calculators: Printing Blank Forms
Keep paper data collection forms on file!!

9. Data Management – Why? Proves quality of your emission estimates
Helps when updating EI
Don’t have to redo/refigure everything

10. You start with...
Amount of wood burned for residential heating (i.e., number of cords)
Types of stoves people are using
Emission factors
Equation that puts all these numbers together to calculate your emissions estimate
What do we need to estimate emissions from woodstoves
data:
how much wood
what type of wood
what type of stoves
Tools
emission factors
equations to put it all together

11. Data Management: Records
How did you estimate # cords burned for residential heating?
Guessed based on personal knowledge of your reservation
Used population and estimate of percent of homes burning wood
Did survey to count woodstove types and amount of wood burned
Data Quality
Least reliable 
Most reliable
If you come back to this EI in a few years, or if someone else does it, you’ll want to know information like “how did I estimate how much wood was burned?”.
This also gives a good idea as to the data quality

12. Data Management: Records (cont.)
Example formula
E = EF x (W x H x % x D)
E = emission rate
EF = emission factor for given pollutant
W = volume of wood burned annually for one home
H = number of tribe households
% = percent houses heating with wood
D = Dry density of wood

13. Data Management: Records (cont.)
For each variable, identify source
EFs from EPA AP-42, fifth edition
W from tribal housing office estimate
H and % from tribal housing office
D from EPA AP-42, Fifth edition

14. Data Management Report Example
Read the DataManagementReportEx document
This document shows an example of how to present data in an EI report

15. Data Management Spreadsheet Example
Onscreen demonstration of the spreadsheet associated with the report example

16. Crucial Data
Collect the mandatory data elements, at a minimum, for every source you inventory
Having these data allows your tribal sources to be included in
National Emission Inventory (NEI)
Regional air quality modeling
Market trading negotiations

17. Data from Point Sources
Record the following information AT MINIMUM
Name of facility
North American Industry Classification System code (NAICS code)
Complete street address
Lat/long or UTM coordinates (with datum)
Start and end date of emission process

18. Data from Point Sources (cont.)
Source Classification Code (SCC)
Estimated emission for each inventoried pollutant
Period of emission estimate (annual, weekly, daily, etc.)
Specify units of emission estimate (tons/year, lbs/month, etc.)

19. Point Source – Process Level
Best if broken down to process level
Example
Site: ABC Gravel Company
Units: Screening operation, excavating operation
Processes: Loading, screening, output
Release points: stacks, vents, fugitive
Control devices and their efficiency

20. Processes Example: Sand and Gravel Pit
Excavating Operation
Screening Operation
Loading
Screening
Output
Release Points
Control Devices
Release Points
Control Devices
Release Points
Control Devices

21. Nonpoint and Mobile Sources
Record the following information AT MINIMUM
SCC
Period of emission estimate (for example, annual)
Estimated emission for each inventoried pollutant
Specify units of emission estimate (tons/year, lbs/month, etc.)

22. Data Management Summary
Describe
WHAT you are calculating
HOW you calculated emissions estimate
WHERE you got data
WHEN you collected data
WHO you got your data from
Include mandatory data for NEI

23. TEISS QA/QC Tools Place to document data sources
Can automatically list
frequently entered names
Documents QA checks

24. QA/QC Report

25. Homework due in 5 days:
Make a list of the nonpoint sources on the reservation that you are going to include in your EI
Review Section 8.0 of the ITEP Tribal EI QAPP template
Use the TEISS calculators to write out the estimation methods and data you need to collect for the nonpoint sources, similar to Table 6 in the QAPP template
your work to the instructors