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

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?

Data management is keeping track of information used to estimate emissions

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.)

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

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

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.)

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

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

QA/QC Report

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 Email your work to the instructors