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									    Webinar: AIR Now
            and
Air Quality System (AQS)


     July 13, 2011
                   Agenda
• Introductions
   – Sarah Swenson, EPA (facilitator)
   – John E. White, EPA (presenter)

• Format
   – EPA speaker (15 minutes) – overview of Air datasets
   – Lines are muted - submit questions as the speakers talk
   – Questions and Answers (15 minutes)

• See the website: epa.gov/appsfortheenvironment



                                                               1
            Background about the Challenge

• Apps must use EPA data and address one of EPA
  Administrator Lisa Jackson’s Seven Priorities
• Judged based on usefulness, innovativeness, and
  usability
• Submissions are due by September 16
• Winners and runners up for Best Overall App and Best
  Student App, plus People’s Choice
• Recognition from EPA in Washington, D.C. in
  November
• Get more details at epa.gov/appsfortheenvironment
                                                         2
AIRNow Web Services
Overview of Available Data
            Prepared by
 Steven A. Ludewig, Timothy S. Dye
     Sonoma Technology, Inc.
           Petaluma, CA
            John E. White
U.S. Environmental Protection Agency
     Research Triangle Park, NC




                                       3800
           AIRNow Program Overview

AIRNow is the National system for acquiring and
distributing air quality observations and forecasts to the
public
• Voluntary participation
• 130 federal, state, local, and tribal air
  quality agencies)
• Standardized Air Quality Index (AQI)
• Partnerships with national media
• Air quality education and outreach
• Emergency response (e.g., wildfires)
• Exceptional Event tools
• EnviroFlash
The Air Quality Index
               AIRNow Web Services:
               Why Are They Needed?
• Web Services provide a way to retrieve data and
  information ‘on demand’ from the AIRNow system.
   –   Forecasts
   –   Action days
   –   Observed data
   –   Multiple format options including maps
   –   Agency, reporting area, and monitoring site information
• Uses
   –   Agency websites, web developer access
   –   Local news organizations
   –   Other agencies
   –   Schools and researchers
   –   Spreadsheets and other applications
   –   The public

                                                                 7
AIRNow Web Services
     A few potential uses




                            8
      AIRNow Web Services
• Where we’ve been
  – Simple Object Access Protocol (SOAP): not
    as simple or clean as it sounds
• Progress in 2009
  – A RESTful approach
• The future – an AIRNow Application
  Programming Interface (API)
  – Additional services, data sets, and formats
    useful for building applications
  – An easier to use, well-documented interface
                                                  9
              AIRNow Web Services:
               A RESTful Approach
• Example question: “What is the current air
  quality forecast for my home town ZIP Code?”
   – URL: http://ws.airnowgateway.org/GatewayWebService
     REST/Gateway.svc/forecastbyzipcode?key=43321E-
     F56Q-B612-68FBN&zipcode=95401&format=csv
• Looks complicated, but let’s break it down
   –   ForecastByZIPCode = the name of this request*
   –   Key = unique user key
   –   ZIPCode = ZIP Code of interest
   –   Format = payload options (CSV, JSON, KML, XML, etc.)
   –   Optional: Date = any date of interest (defaults to the
       current date)
*a companion service exists for observed data: ObservedByZIPCode

                                                                   10
  AIRNow Web Services (example)
Use of ForecastByZIPCode and ObservedByZIPCode
services by the EPA MyEnvironment website:
www.epa.gov/myenvironment and other state web sites




                                                      11
          AIRNow Web Services
Use of a geospatial Web Coverage Service (WCS) by
Shasta County, CA:
http://www.co.shasta.ca.us/html/ResMgmt/AQ/aq_map.aspx




          KML file
                                                         12
            AIRNow Web Services

•   ForecastByZIPCode      • SiteInfoByAQSCode
•   ObservedByZIPCode      • AgencyGetSites
•   ForecastsByIssueDate   • GetReportingAreas
•   ActionDaysByDate
                           Geospatial:
•   Ozone24HourAQI
                           • WCS – point
•   PM25Mid24HrAQI
                           • WCS – time series
•   ReportingAreaMax-
    AverageAQI             Coming Soon:
                           • WCS – grid
• SiteMaxAverageAQI
                           • WMS – mapping service

                                      Demonstration Tool
                                                           13
AIRNow Web Services – The Future

• AIRNow API
  – Expanded library of services
  – Additional geospatial services
  – More payload options
  – Improved standardization
  – Extensive documentation
  – Online query generator tools



                                     14
           AIRNow Web Services

                Thank You!

Contact:
 Steven A. Ludewig       John E. White
 (707) 665-9900          (919) 541-2306
 steve@sonomatech.com    white.johne@epa.gov




                                               15
                 Questions and Answers


Potential topics:
• Questions about accessing or using AIR Now or AQS
  data
• How to submit ideas for apps
• Ideas for future webinars – what datasets do you
  want to learn about?



                                                      3
                         Next Steps
• Check out our new webinar site to catch up on any you’ve missed!

• Weekly webinars for the next 6 weeks – Wednesdays @ 2 PM EST
    – The next webinar is on Wednesday, July 20 at 2 PM eastern
    – Topic: EPA’s Water data! Check the website for registration info

• Submit your apps by September 16
• Check the website for the latest news and sign up for the listserv
   (EPA App Developer Community)

• Follow us on Twitter: #greenapps

• Email us at greenapps@epa.gov

                                                                         4
                        Additional Resources
• Apps for the Environment: epa.gov/appsfortheenvironment
• AIR Now
   – http://airnowgateway.org/
   – http://www.airnow.gov/
   – Email your questions to white.johne@epa.gov

• Air Quality System
   – http://www.epa.gov/ttn/airs/aqsdatamart
   – Email your questions to mangus.nick@epa.gov

• Other Air Data
   – http://www.epa.gov/air/airpolldata.html

                                                       5

								
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