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Emissions Inventory Overview-Part 2

Emissions Inventory Overview-Part 2. Melinda Ronca-Battista, ITEP/TAMS Center. Group Discussion of Homework. What level did you select for your EI? Why did you select this level? What sources are on your reservation that you know about?. Quantifying Emissions. Examples.

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Emissions Inventory Overview-Part 2

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  1. Emissions Inventory Overview-Part 2 Melinda Ronca-Battista, ITEP/TAMS Center

  2. Group Discussion of Homework What level did you select for your EI? Why did you select this level? What sources are on your reservation that you know about?

  3. Quantifying Emissions Examples

  4. How Are Emissions Estimated? Continuous Emissions Monitoring Systems (CEMS) Or Source Testing EPA Emission Estimation Models TANKS LANDGEM WATER9 MOVES NONROAD Material Balance Emission Factors

  5. Quantifying Emissions • Emission Factor • Conversion factor provided by EPA (AP-42) or other source to quantify emissions • E.g., lbs mercury emitted per ton of coal burned • Activity • Collected by the person that estimates the emissions • Process data (tons of coal burned, hours of operation) • Emission Factor and Activity used to estimate Emission rate for a single pollutant • E.g., 10 pounds/year mercury from small power plant

  6. Quantifying (cont.) E Basic estimating equation E = EF x A = EF x activity (throughput) • Where • E = Emissions rate (TEISS calculates) • EF = Emission factor (TEISS provides) • A = Activity (aka throughput, thatyou collect and enter into TEISS calculators)

  7. Where do I get the necessary data to calculate emissions? LOTS of info on the internet • Process activity • Directly from source • From permits • Monitoring/CEMs • Questionnaires/Surveys

  8. For each type of source: • Coming up, Data Collection slides and TEISS Data Entry slides for each source type • Data Collection slides • Information you collect in real world terms • TEISS Data Entry slides • TEISS has a structure based on the NEI • Slides explain how data you collect fits into the structure

  9. Point Source Data Collection • Physical Location (address, lat/long) • Stack parameters • Height • Diameter • Flowrate • Exit gas temperature

  10. Point Source Data Collection (cont.) • Process-level information, leads to SCC selection • Flow diagram • Materials being consumed (type and amount) • Boiler throughput • Operating schedules • Control devices/efficiencies

  11. Point Source TEISS Data Entry • Facility Data • Site Name • Physical Location (address, lat/long) • Release Points • Emission Units • Processes • Control Equipment? • Period (time frame-usually annual) • Emissions (you can enter or calculate with TEISS)

  12. Nonpoint Source Data Collection • Process information • Leads to SCC selection • Types of operations • Gasoline storage tank refilling • Unpaved roads • “Activity data” needed to calculate emissions • Type of refilling process (splash or submerged) • VMT, vehicle weight, speed, road silt content, etc. • Pollution-management practices or control measures • Dust abatement with water or petro-based chemical

  13. Nonpoint Source TEISS Data Entry • Location • If enter data for on-reservation sources, your reservation • If import county-level data from NEI database, a county • Process--leads to SCC selection • Control Equipment/Measures • Period (usually annual) • Emissions (you can enter or calculate with TEISS)

  14. Mobile Source Data Collection • On-Road • Road types • Vehicle types & use • Vehicle Miles Traveled (VMT) • Off-Road • Engine types • Horsepower • Hours of use • Model used to estimate emissions

  15. Mobile Source TEISS Data Entry • Location • If enter data for on-reservation sources, your reservation • If import county-level data from NEI database, a county • Processes • Period • Emissions (you enter from your estimates based on road lengths/types or from EPA model calculations)

  16. Fire Data Collection • Special Case: covers large area, like nonpoint sources, but in defined location like point sources • Data elements include • Datesof fire • Latitude/Longitude coordinates • Fire type (man-made or natural) • Acres burned • New EPA format and TEISS treat fires as EVENTS

  17. Fire TEISS Data Entry Event Identification Period (dates) Location If enter data for on-reservation fires, your reservation If import county-level data from NEI database, a county Geographic Coordinates Processes (prescribed burn or wildfire) Emissions (from EPA or calculated with TEISS)

  18. In Summary, a Final EI is… • A list of air pollution sources for a defined: • area (reservation) • time period (e.g., a year) • Information about each source (address, activities/processes) • Estimate of emission rate for each source • How you constructed the estimates

  19. An EI also contains… Charts/graphs to display and summarize quantitative data Maps Background information or other information about your area related to emissions/sources Copies of surveys, calculations used, references, that you record in a dedicated notebook

  20. Homework due in 5 days: Read the Bishop Paiute Tribe EI to get a sense of what is included in an EI. Answer the questions in the Homework_EIOverviewPart2 document. Email your answers to the instructors Hint: just do it now while you remember (Image taken from PetsForPatriots.org)

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