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TRI-NATA Explorer . 2008 Toxics Release Inventory (TRI) National Training Conference Washington, DC February 12, 2008 Ted Palma - EPA Office of Air Quality Planning and Standards Kim Balassiano - EPA OEI/OIAA Information Access Division. Development of TRI-NATA Explorer.

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tri nata explorer

TRI-NATA Explorer

2008 Toxics Release Inventory (TRI) National Training Conference

Washington, DC

February 12, 2008

Ted Palma - EPA Office of Air Quality Planning and Standards

Kim Balassiano - EPA OEI/OIAA Information Access Division

development of tri nata explorer
Development of TRI-NATA Explorer
  • Goal - Put TRI air emissions into risk context
  • OEI has developed TRI database
  • OAQPS has developed NATA database
  • OAQPS had initially developed NATA-explorer tool (unfunded!)
  • OEI Staff have begun enhancing the tool
what is nata
What is NATA?
  • Characterization of air toxics risks across the nation
    • Modeling assessment performed by the USEPA to characterize chronic cancer and noncancer risk estimates for the 133 HAPs
    • Includes many sources of outdoor origin
    • Inhalation only
  • Tools for State/Local/Tribal Agencies (and EPA) to prioritize pollutants, emission sources and locations of interest
    • Provides a starting point for local-scale assessments
    • Focuses on community efforts
    • Informs monitoring programs
  • Results are available in database on NATA website
nata history
NATA History
  • 1996 NATA
    • Based on 1996 NTI
    • Release May 2002
    • 33 HAPs
  • 1999 NATA
    • Based on 1999 NEI
    • Released Feb 2006
    • 177 HAPs
  • 2002 NATA
    • Will be based on 2002 NEI
    • Expected Release Early 2008
who currently uses nata
Who currently uses NATA?
  • EPA
    • Data for standard setting
      • Risk and Technology Review
      • Area source rulemaking
      • MSAT Rule used NATA for current and projected risk levels
    • Air Toxics monitoring
      • NATTS Priority HAPs/Site locations
      • Support Urban monitoring efforts
    • Accountability Measures
      • GPRA, 112(k), PART
      • AQM Phase 1 ( Recommendation 1.5 Framework for Accountability)
    • Used to link Air Toxic to Criteria Program
      • Overlay “Hot Spots” with nonattainment areas (e.g. Detroit)
      • Evaluate the toxic components of PM
  • States
    • Many State Air Toxic Program set air toxic priorities using NATA
    • Identify gaps in emissions inventories and encourages inventory improvements
  • Communities
    • Serves as a starting point
    • Information and priority setting
improvements in the 2002 nata
Improvements in the 2002 NATA
  • Inventory Improvements
    • Cr speciation
    • More tribal data
    • RTR review
    • Integration of HAPs and CAPs
    • QA/QC
  • Improved point source characterization
    • Model at census block using HEM3 (AERMOD)
    • Retain individual source contributions
      • Will group into source categories
  • Improved non-point source characterization
    • Area sources - grouped into 27 area source bins
    • Mobile sectors - grouped into 9 source bins
  • Updated exposure characterization approach
    • Using exposure ratios in lieu of running HAPEM
    • Allows us to retain individual facility and areas source category contribution to risk
  • Improved Background Characterization
    • Updated monitoring data (NATTS)
    • Improved regional representation
slide7

1999 NATA - National Scale Assessment

Predicted County Level Cancer Risk – County Medians

  • Spatially, most of country predicted to have risk between 1 and 25 in a million
  • Most urban locations greater than 25 in a million
  • Transportation corridors and some locations greater than 50 in a million
  • Several counties greater than 100 in a million
slide10

The whole is greater than

the sum of the parts.

TRI-NATA

Explorer

+

+

=

TRI

NATA

GIS

getting the right information
Getting the Right Information
  • How can TRI-NATA Explorer better provide information community audiences are interested in?
  • How can we make the risk information presented by TRI-NATA Explorer more understandable and useful?
  • How can we help people better understand the uncertainty associated with the information provided by TRI-NATA Explorer?
  • How can TRI-NATA Explorer be made easier to use?
putting risk info into context
Putting Risk Info into Context
  • Feedback from focus group was that people want to know:
    • What does a cancer risk of 25 in a million actually mean?
    • Should I be concerned?
  • Risk ladder is a visual tool that depicts magnitude of risk.
    • Risk in question compared against more familiar types of risk
slide13

1 in 1

— person

1 in 10

— family

1 in 100

— street

1 in 1,000

— village

Community Risk Scale

Risk Magnitude

1 in 10,000

— small town

1 in 100,000

— large town

1 in 1 million

— city

1 in 10 million

— small country

1 in 100 million

— large country

putting risk info into context14
Putting Risk Info into Context
  • OEI and OAQPS considering other possible risk ladders
  • Examples
    • Risks of daily life: car, plane, bike accidents
    • Other health risks: smoking, dietary habits
    • Risk associated with EPA decisions: residual drinking water and air risks
slide18

Zoom into

area of concern

planned application enhancements
Planned Application Enhancements
  • Replace or add 1999 NATA data with 2002 NATA data
  • Retool for public consumption by adding explanatory text (i.e., risk ladder)
  • Standardize the map controls (pan, zoom, identify) to be consistent with today\'s mapping applications
tri nata explorer tentative schedule
TRI-NATA Explorer Tentative Schedule
  • Internal EPA Focus Group Review – September 2007
  • Initial Software Enhancements - Fall 2007
  • External Focus Group Review – Spring/Summer 2008
  • Final Enhancements – Summer 2008
  • Update with 2002 NATA – Summer 2008
  • Public Release – Late 2008
tri nata explorer development team
TRI-NATA Explorer Development Team
  • Ted Palma – OAQPS
  • Kim Balassiano – OEI
  • Art Koines - OEI
  • Dave Wolf – OEI
  • Mike Petruska - OEI
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