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Air Quality Data Exchange

Air Quality Data Exchange. Exchange Network Users Meeting April 18th, 2006. Why we need the AQDE. AQS QA - 3 month time lag in the data that is available AirNowTech Most states only submit Ozone and PM2.5 data Request from another state directly

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Air Quality Data Exchange

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  1. Air Quality Data Exchange Exchange Network Users Meeting April 18th, 2006

  2. Why we need the AQDE • AQS • QA - 3 month time lag in the data that is available • AirNowTech • Most states only submit Ozone and PM2.5 data • Request from another state directly • Typically a substantial delay before receiving a response from the provider • Most transactions via postal mail • Time for a provider to prepare the data

  3. Project Objectives Drastically reduce the waiting time for states to obtain air quality data • Demonstrate state to EPA • AQS data exchange via CDX • AirNow data exchange on AirNow node • Demonstrate state to state XML data exchange utilizing the EN • hourly • minute (NJ) • Demonstrate the state to state flow of AQS data geospatially.

  4. Many Thanks • EPA • Funding • AQS (Nick Mangus) • AirNow (Phil Dickerson) • Partners • Delaware • New York • New Jersey

  5. enfoTech • XML data flow • Project management • Sonoma Technologies • AirNowTech • ESRI • GIS Technology

  6. AQDE Schema • AQDE = AQS version 2 • Upgraded the AQS schema to be ESAR compliant • Additional data elements for AirNow. • Allows states to • flow data to AQS • flow data to AirNowTech • support state to state data flow

  7. When EPA is ready to accept AirNow data over the Exchange Network, we will have 1 schema that works for everything. • Reduces work on states.

  8. Discoverable Web Services • Will register web services on Data Registry • Oregon DEQ • Users will be able to use the Data Discovery Tool or Service to find AQDE web services

  9. Leveraging Schema and Web Services • Reusing this flow for NJ Homeland Security data flow • Dept. of Health - PHIN (Public Health Information Network).

  10. Geospatial Analysis

  11. AirNow

  12. AirNow/AirNowTech • AirNow • General public • Hourly data – AQI for Ozone and PM2.5 • GIF images • AirNowTech • Government and academia • Hourly data - Absolute data values • Additional parameters and met data • Historical data • GIS

  13. AirNowTech Navigator

  14. Issues with Existing AirNow Data & Apps • Cannot submit data to AirNowTech with web services or XML • States need to maintain separate data exchange mechanisms to support the submission of data to AirNow. • In many cases AirNowTech does not contain updated or corrected data.

  15. AQDE Solution

  16. Enhanced Navigator • Create a web service interface to retrieve submitted files. • New AirNow node, separate from CDX • Create data transformation module were • XML file is parsed directly into the AirNow database. • XML file is converted into .obs files, which is processed into AirNow database.

  17. Create automated processing of data correction & updates. • States will submit data to the AIRNow Node using the AQDE XML Format. • Submission will include all updates since the last submission. • Submission can be scheduled through the state’s node client or other scheduling software.

  18. Challenges • Choosing a GIS Solution • New application • Modification of existing application • Balancing the implementation of the AQDE flow with the implementation of new air monitoring systems.

  19. Next Steps • Implement state to state flow • Begin enhancements to Navigator to accept XML flow • Face to face meeting to discuss flow and GIS development • TPA

  20. Results • Out of state air quality data on demand • Use with any analysis method • Reduced work for the states • 1 schema 2 flows • Enhanced AirNowTech • More updated and corrected data • Raising the profile of XML and web services in the air science community • Schema and web services that can be reused in future applications. • Better information for health and homeland security decision-making.

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