Air Quality Data Exchange

Exchange Network Users MeetingApril 18th, 2006

Why we need the AQDEAQS

QA - 3 month time lag in the data that is availableAirNowTech

Most states only submit Ozone and PM2.5 dataRequest from another state directly

Typically a substantial delay before receiving a response from the provider Most transactions via postal mailTime for a provider to prepare the data

Project Objectives

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.

Drastically reduce the waiting time for states to obtain air quality data

Many Thanks

EPA Funding AQS (Nick Mangus) AirNow (Phil Dickerson)

Partners Delaware New York New Jersey

enfoTech XML data flow Project management

Sonoma Technologies AirNowTech

ESRI GIS Technology

AQDE Schema

AQDE = AQS version 2Upgraded the AQS schema to be

ESAR compliantAdditional data elements for AirNow.Allows states to

flow data to AQS flow data to AirNowTech support state to state data flow

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.

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

Leveraging Schema and Web Services

Reusing this flow for NJ Homeland Security data flow

Dept. of Health - PHIN (Public Health Information Network).

Geospatial Analysis

AirNow

AirNow/AirNowTechAirNow

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

AirNowTech Navigator

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.

AQDE Solution

States

AirNow Tech

AirNowNode

`

AirNow TechNavigator

NJ Database

Submit

3

2

AirNowDatabase

Up to the stateNY

Node

DENode

NJNode

Submit

Submit

NYDatabase

DE Database

Updates

Updates

Updates

1

Return includes most recent hour’s data and all updated data since last solicit

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.

•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.

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.

Next Steps

Implement state to state flowBegin enhancements to Navigator

to accept XML flowFace to face meeting to discuss

flow and GIS developmentTPA

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.