1. N E This demonstration is intended to present how EPA proposes that the user will interact with the re- engineered Air Quality Subsystem. A small subset of the functions that will be provided in the production version are addressed in this demo. The production version of AQS has a projected release date of April 1998. Questions and comments about this demonstration and the re-engineered AQS may be sent via email to: kelsey.andrea@epamail.epa.gov Disclaimer Contact About Today’s AQS Re-engineering AQS Sample the New AQS Choose a topic button to begin the demo. Press ESC at any time to end presentation.

2. About Today’s AQS AQS is the Air Quality Subsystem of AIRS, the Aerometric Information Retrieval System. AQS contains measurements of ambient concentrations of air pollutants and associated meteorological data. These data are collected by thousands of monitoring stations operated primarily by State and Local Agencies. EPA uses this data to assess the overall status of the nation’s air quality and to prepare reports to Congress as mandated by the Clean Air Act. EPA also uses the data to identify areas where improvements in air quality are needed. AQS provides several types of data: Most of the air quality and precision-accuracy data in AQS comes directly from the SLAMS and NAMS air monitoring networks, which are operated by state and local pollution control agencies. A small amount of raw data comes from monitors operated by the EPA or private sources. In addition, AQS includes air quality data submitted by about 45 World Health Organization (WHO) member nations. N E Monitoring Site Descriptions Raw Data Summary Data Precision and Accuracy Data Monitoring Site Descriptions provide information about the monitoring sites that provide data to AIRS. Information includes site location, site operational dates, the organization responsible for monitor operation, and many other items. Select from the bulleted list to view more information. Choose Home to return to the first slide.

3. AQS is the Air Quality Subsystem of AIRS, the Aerometric Information Retrieval System. AQS contains measurements of ambient concentrations of air pollutants and associated meteorological data. These data are collected by thousands of monitoring stations operated primarily by State and Local Agencies. EPA uses this data to assess the overall status of the nation’s air quality and to prepare reports to Congress as mandated by the Clean Air Act. EPA also uses the data to identify areas where improvements in air quality are needed. AQS provides several types of data: Most of the air quality and precision-accuracy data in AQS comes directly from the SLAMS and NAMS air monitoring networks, which are operated by state and local pollution control agencies. A small amount of raw data comes from monitors operated by the EPA or private sources. In addition, AQS includes air quality data submitted by about 45 World Health Organization (WHO) member nations. N E Monitoring Site Descriptions Raw Data Summary Data Precision and Accuracy Data Raw Data are the individual values of pollutant concentrations or meteorological conditions measured at the monitoring sites and supplied to AIRS primarily by the State and Local Agencies that operate the monitors. About Today’s AQS Select from the bulleted list to view more information. Choose Home to return to the first slide.

4. AQS is the Air Quality Subsystem of AIRS, the Aerometric Information Retrieval System. AQS contains measurements of ambient concentrations of air pollutants and associated meteorological data. These data are collected by thousands of monitoring stations operated primarily by State and Local Agencies. EPA uses this data to assess the overall status of the nation’s air quality and to prepare reports to Congress as mandated by the Clean Air Act. EPA also uses the data to identify areas where improvements in air quality are needed. AQS provides several types of data: Most of the air quality and precision-accuracy data in AQS comes directly from the SLAMS and NAMS air monitoring networks, which are operated by state and local pollution control agencies. A small amount of raw data comes from monitors operated by the EPA or private sources. In addition, AQS includes air quality data submitted by about 45 World Health Organization (WHO) member nations. N E Monitoring Site Descriptions Raw Data Summary Data Precision and Accuracy Data Summary Data are derived from raw data. They include the annual and daily maximum, minimum, and average raw data values; total number of values reported; number of values exceeding national ambient air quality standards; and numerous other statistical measures. About Today’s AQS Select from the bulleted list to view more information. Choose Home to return to the first slide.

5. AQS is the Air Quality Subsystem of AIRS, the Aerometric Information Retrieval System. AQS contains measurements of ambient concentrations of air pollutants and associated meteorological data. These data are collected by thousands of monitoring stations operated primarily by State and Local Agencies. EPA uses this data to assess the overall status of the nation’s air quality and to prepare reports to Congress as mandated by the Clean Air Act. EPA also uses the data to identify areas where improvements in air quality are needed. AQS provides several types of data: Most of the air quality and precision-accuracy data in AQS comes directly from the SLAMS and NAMS air monitoring networks, which are operated by state and local pollution control agencies. A small amount of raw data comes from monitors operated by the EPA or private sources. In addition, AQS includes air quality data submitted by about 45 World Health Organization (WHO) member nations. N E Monitoring Site Descriptions Raw Data Summary Data Precision and Accuracy Data Precision and Accuracy Data provide information regarding the precision and accuracy of air quality monitors. AIRS has P&A data for individual monitors, and summaries for groups of monitors operated by each state or local reporting agency. About Today’s AQS Select from the bulleted list to view more information. Choose Home to return to the first slide.

6. N E Re-engineering AQS The Office of Air Quality Planning and Standards (OAQPS) initiated the AQS re- engineering effort in December, 1995. AQS will be the first subsystem of AIRS to undergo the re-engineering process. AIRS, which became operational in 1987, has provided its users with reliable and comprehensive air quality information for nearly 10 years. However, new data requirements and technological advancements necessitate that AQS be rethought and redesigned at this time. AQS will be re-engineered using the latest technologies, including client/server architecture and a graphical user interface. The re-engineered system will be more user- friendly, have increased functionality, and be more cost-effective to operate, maintain, and update. View a schedule for the AQS re- engineering project. Show me the proposed changes to the current AQS. What are the goals of the re- engineering project? What are the minimum requirements for users of the new AQS? Select from the bulleted list to view more information. Choose Home to return to the first slide.

7. N E Schedule Schedule Changes Goals Requirements Back to Menu Back to Menu Select a menu item to view more information. AQS Development Schedule Interim database available 19977891011121/982346543 Beta testing with selected agencies Full production Training for agencies State/Local agencies obtain hardware/software Design and develop software WEB browser access to database O 3 /PM NAAQS

8. Proposed Changes N E Architecture Data Retrievals Data Retrievals User Interface User Interface Public Access Public Access Update Process Update Process Changes in System Architecture Relational Database A relational database provides data structure and functionality that is non-existent in previous generation databases. Related fields are grouped together in tables, which may be linked or associated with other tables in the database. As information needs changes, the new AQS database will have the flexibility to incorporate new data elements into the existing database structure. Client/Server The current mainframe will be replaced by a client/server architecture. Client/server technology combines the benefits of centralized data management and storage with the ease of use inherent in a PC environment. Interactive and Batch Functionality The three-tiered client/server architecture proposed for the new AQS will provide both interactive and batch-style processing for reports and queries. Data AccessUsers will be able to access data directly through the AQS client application, via third-party PC application software, or through a World Wide Web browser. Requirements Changes Schedule Back to Menu Back to Menu Choose a button to view more proposed changes. Select a menu item to view more information. Goals

9. N E Proposed Changes Data in the New AQS Summary Statistics The system will permit direct entry of summary statistics if there are no raw data present in the database. Summary data will be stored in standard reporting units. Pictures and Video AQS will allow the storage of pictures and videos at the site and monitor levels. Ozone and PM Fine Standards New Ozone and PM Fine standards will be featured in the new AQS. QA Data Qualifiers Data qualifiers will be stored to flag data for various purposes. Data qualifiers will be stored for Comments Available, Below Detection Limit, and Unknown QA. Visibility Data The re-engineered AQS will store Visibility Data and/or provide open access to the visibility data in the IMPROVE database administered by the National Park Service. Upper Air Data The re-engineered AQS will store upper air meteorology data. Requirements Changes Schedule Back to Menu Back to Menu Architecture Public Access Public AccessData Update Process Update Process Data Retrievals Data Retrievals User Interface User Interface Choose a button to view more proposed changes. Select a menu item to view more information. Goals

10. N E Proposed Changes Data Retrievals in the New AQS Create, Save, and Edit Reports The re-engineered AQS will allow users to tailor pre-defined reports in a variety of ways: users will be able to create new selection criteria, use existing criteria, or edit existing criteria. Selection criteria includes parameters for Geography, Time, Pollutant, and Attribute. Reported/ Standard Units AQS will allow users to access raw data in either reported or standard units. Printing OptionsUsers may print the results of a query or report interactively, or they may be submitted in batch and retrieved at a later time. Users may print the result of a query or report on a local printer, or route the job to a regional server or to the National Computer Center. PC File Formats Queries may be stored in a variety of PC file formats, including those compatible with Excel, Lotus 1-2-3, dBase, PC SAS, WordPerfect, Word, and Voyager. Local/ Standard Time AQS will allow users to access data by local time as well as by standard time. The system will store all data in standard time and provide conversion routines. Requirements Changes Schedule Back to Menu Back to Menu Architecture Public Access Public Access Data Update Process Update Process Data Retrievals User Interface User Interface Choose a button to view more proposed changes. Select a menu item to view more information. Goals

11. N E Proposed Changes Changes in the User Interface In the re-engineered AQS, the user will be automatically prompted by the system for required actions. Default selections for fields and command buttons, as well as status bar instructions, will significantly lessen the user’s initial learning curve. On-screen Prompts Online Documentation The re-engineered AQS will support a fully functional online Help feature, including Hints, context-sensitive Help, and application level Help. The re-engineered AQS will utilize features typical of a graphical user interface such as buttons, selection lists, folders, fill-in fields, and check boxes. Graphical objects more clearly represent the relationship between different information and lessen the user’s learning curve. Graphical User Interface Point and Click Maneuverability Direct access to the data field of interest will be possible through point and click maneuverability. The use of a mouse allows the user to move directly to any field on the screen and eliminates the need to tab through several fields. Requirements Changes Schedule Back to Menu Back to Menu Architecture Public Access Public Access Data Update Process Update Process Data Retrievals Data Retrievals User Interface Choose a button to view more proposed changes. Select a menu item to view more information. Goals

12. N E Proposed Changes The New Public Access Module Database Access Direct public access to air quality data will be possible using the re- engineered AQS. Public users will access the AQS database through a Web Browser, such as Netscape, on the Internet. Users will not be able to save queries or change information on the Web site. Pre-defined Reports AQS will provide its public users with formatted reports, like those available in AIRS Executive. In addition to these reports, some pre-defined maps and graphs will be made available. Select Data Users will be able to submit queries against AQS database tables. Users will be able to view, print, save to a file, or submit a “batch” query (for large extractions). This function will have the ability to drill up or down to the previous or next logical set of data. Selection criteria for this function include Data Type, Geography, Date(s), Monitoring Attributes, and Pollutants. Requirements Changes Schedule Back to Menu Back to Menu Architecture Public Access Data Update Process Update Process Data Retrievals Data Retrievals User Interface User Interface Choose a button to view more proposed changes. Select a menu item to view more information. Goals

13. N E Proposed Changes Changes in the Update Process Batch/Online Update Users will be able to update the database in both online and batch mode. Online updates are simple to execute and are better suited to small data transactions, while the batch update process is more efficient for larger data transactions. EMAD ReviewUpdated data will be reviewed after the updates have been made in the AQS database. This policy change allows for online and more frequent updates, a change requested by many end users. Non-Mandatory Edits New, non-mandatory edits will be incorporated that will specify threshold values for parameters. Thresholds will be defined at four levels, absolute max and min, and relative max and min. The EPA will define default thresholds, which may be overridden by state-defined thresholds. Eliminate Secured Monitors Secured monitors will be eliminated from the new AQS. A data flag or monitor type will allow the data submitter to flag monitors that may be unsuitable for regulatory purposes. SLAMS Certification The new AQS will no longer require the computation and storage of separate SLAMS summary statistics. The certification will be performed as an online update. Requirements Changes Schedule Back to Menu Back to Menu Architecture Public Access Public Access Data Update Process Data Retrievals Data Retrievals User Interface User Interface Choose a button to view more proposed changes. Select a menu item to view more information. Goals

14. N E Project Goals Requirements Changes Goals Schedule Back to Menu Back to Menu The primary goal in redesigning AQS is to create a product that meets the needs of OAQPS and end users in regional, state, and local agencies throughout the country. The new AQS should address limitations of the current system, and provide functionality comparable to that of current software products. Project goals for the re-engineered AQS include: Choose a goal to see how the design specifications for the re-engineered AQS meet these requirements. · Add Windows/GUI Functionality · Improve Data Management Improve Data Management · Move Database to a UNIX Server Move Database to a UNIX Server · Access Database using End User Tools Access Database using End User Tools · Improve Data Access Improve Data Access The re-engineered AQS will incorporate a graphical user interface that is more intuitive and easier to learn than a text based interface. The AQS interface will facilitate both data entry and retrievals and feature additional edit checks that will improve the quality of the data. Choose from the bulleted list to view project goals. Select a menu item to view more information.

15. N E Project Goals Requirements Changes Goals Schedule Back to Menu Back to Menu The AQS re-engineering project will use a relational database management system in a client-server architecture. The relational database is inherently flexible and can easily accommodate database changes as new data elements are defined. Information in different tables can be quickly combined, allowing complex reports to be created without custom programming. Choose from the bulleted list to view project goals. Select a menu item to view more information. The primary goal in redesigning AQS is to create a product that meets the needs of OAQPS and end users in regional, state, and local agencies throughout the country. The new AQS should address limitations of the current system, and provide functionality comparable to that of current software products. Project goals for the re-engineered AQS include: Choose a goal to see how the design specifications for the re-engineered AQS meet these requirements. · Add Windows/GUI Functionality Add Windows/GUI Functionality · Improve Data Management · Move Database to a UNIX Server Move Database to a UNIX Server · Access Database using End User Tools Access Database using End User Tools · Improve Data Access Improve Data Access

16. N E Project Goals Requirements Changes Goals Schedule Back to Menu Back to Menu The current mainframe will be replaced by a UNIX server running Oracle relational database management software and Oracle SQL*Net, with PC clients running Microsoft Windows 95. This client/server architecture combines the benefits of centralized data storage and management with the ease of use found in a PC environment. Choose from the bulleted list to view project goals. Select a menu item to view more information. The primary goal in redesigning AQS is to create a product that meets the needs of OAQPS and end users in regional, state, and local agencies throughout the country. The new AQS should address limitations of the current system, and provide functionality comparable to that of current software products. Project goals for the re-engineered AQS include: Choose a goal to see how the design specifications for the re-engineered AQS meet these requirements. · Add Windows/GUI Functionality Add Windows/GUI Functionality · Improve Data Management Improve Data Management · Move Database to a UNIX Server · Access Database using End User Tools Access Database using End User Tools · Improve Data Access Improve Data Access

17. N E Project Goals Requirements Changes Goals Schedule Back to Menu Back to Menu Registered users with username and password authority may access the AQS database using any third-party data analysis tool. The re- engineered AQS will also allow the user to save query results in popular PC file formats compatible with Excel, Voyager, and dBase. Choose from the bulleted list to view project goals. Select a menu item to view more information. The primary goal in redesigning AQS is to create a product that meets the needs of OAQPS and end users in regional, state, and local agencies throughout the country. The new AQS should address limitations of the current system, and provide functionality comparable to that of current software products. Project goals for the re-engineered AQS include: Choose a goal to see how the design specifications for the re-engineered AQS meet these requirements. · Add Windows/GUI Functionality Add Windows/GUI Functionality · Improve Data Management Improve Data Management · Move Database to a UNIX Server Move Database to a UNIX Server · Access Database using End User Tools · Improve Data Access Improve Data Access

18. N E Project Goals Requirements Changes Goals Schedule Back to Menu Back to Menu Data access and retrievals will be significantly enhanced in the new AQS. The most popular standard reports from the current AQS will still be available, in addition to several new reports. Reports may be printed interactively or in batch mode, and may be exported in *.dbf, *.wks, and *.voy file formats. Discoverer/2000, a powerful ad hoc reporting tool, will replace the existing ad hoc reports. Data mining and charting capabilities will allow users to spot trends and identify anomalies. Output from Discoverer/2000 can be displayed in a variety of report formats, or graphically in line, bar, or pie graphs. Choose from the bulleted list to view project goals. Select a menu item to view more information. The primary goal in redesigning AQS is to create a product that meets the needs of OAQPS and end users in regional, state, and local agencies throughout the country. The new AQS should address limitations of the current system, and provide functionality comparable to that of current software products. Project goals for the re-engineered AQS include: Choose a goal to see how the design specifications for the re-engineered AQS meet these requirements. · Add Windows/GUI Functionality Add Windows/GUI Functionality · Improve Data Management Improve Data Management · Move Database to a UNIX Server Move Database to a UNIX Server · Access Database using End User Tools Access Database using End User Tools · Improve Data Access

19. N E Client Requirements The client will need sufficient memory, disk space, and processing speed to provide adequate performance in a client/server environment. The AQS client will be running a custom Windows-based AQS interface with robust reporting and querying capabilities. Recommended hardware and software requirements for the client are listed below. SoftwareHardware Recommended Pentium 120, 133+ Processor 32+ MB RAM 180 MB Free Disk Space SVGA Video Card Mouse TCP/IP Connectivity CD ROM Microsoft Windows 95 Oracle SQL*Net v2.3 Oracle Discoverer/2000 AIRS/AQS Client Application Software Oracle7 ODBC Driver X Windows Emulation Web Browser Recommended Requirements Changes Schedule Back to Menu Back to Menu Select a menu item to view more information. Goals

20. N E Sample the New AQS The AIRS program group will display icons for the Air Quality Subsystem, AIRS Graphics, Discoverer 2000 and the Web Interface. Select AQS to view a screen-by- screen tour of the prototype product. The AQS demon-stration shows how AQS works, as well as how AQS interacts with other software products, including Discoverer/2000. Select a different AIRS icon to view a description of its functionality and its relationship to the new AQS. Air Quality Subsystem Discoverer 2000 AIRS Graphics Web Interface Select an icon to view more information. Choose Home to return to the first slide.

21. N E Air Quality Subsystem AQS Discoverer 2000 Discoverer 2000 AIRS Graphics AIRS Graphics WW W WW W Back to Menu Back to Menu Main Screen Main Screen Critical Review Report Critical Review Report Update Sites Update Sites Update Monitors Update Monitors Standard Reports Standard Reports Standard Queries Standard Queries Online Help Online Help Select a menu item to view more information. Select a button to view the prototype AQS.

22. The Menu Bar provides user access to all AQS functionality. Menu headings in the new AQS include File, View, Update, Retrieve, Help, and Window. Menu Bar Toolbar The Toolbar is comprised of a series of icon buttons that trigger those features most often used in the re-engineered AQS. Status Bar The Status Bar displays information about the current state of the program. Data shown in the status bar is informational only and cannot be updated by the end user. Choose Back to Menu to return to the menu.

23. Critical Review Report The Critical Review Report may be easily generated; simply select Batch Critical Review Report from the Update menu. The resulting report is automatically generated and pre-formatted for the user. Choose Back to Menu to return to the menu.

24. Update Sites To update sites, select Online Site from the Update menu. Use selection lists to enter information about the site that you want to update. Select the Modify button to begin updating the chosen site. Click forward to advance.

25. Update Sites - Input Mandatory Information To begin updating Site information, choose the Mandatory folder tab, which contains agency, address, and coordinate information. All data shown on the Mandatory tab is required site information. Click forward to advance.

26. Update Sites - Input Optional Information Continue editing site information by selecting the Optional folder tab and entering any required data. Optional data includes census information, site comments, and a location description. Click forward to advance.

27. Update Sites - Input Related Street/Open Path To finish updating the site, select the Related Street and Open Path folder tabs. Changes to site data may be saved or canceled using the command buttons at the bottom of the form. Choose Back to Menu to return to the menu.

28. Update Monitors To update monitors, select Online Monitor from the Update menu. Enter the Monitor ID for the monitor that you want to update. Select the Modify button to begin updating the chosen monitor. Click forward to advance.

29. Update Monitors - Input Mandatory Data To start updating Monitor information, choose the Mandatory folder tab, which contains address and reporting organization information. All data shown on the Mandatory tab is required monitor information. Click forward to advance.

30. Update Monitors - Input Optional Data Continue editing monitor information by selecting the Optional folder tab and entering any appropriate data. Optional data includes site criteria information and monitor comments. Click forward to advance.

31. Update Monitors - NAMS/PAMS Data The NAMS/PAMS folder contains information pertinent to NAMS and PAMS monitors. The user can input probe location information, action type data, and the PAMS sampling frequency. Click forward to advance.

32. Update Monitors - PM10/TSP Data To continue updating monitor information, select the PM10/TSP folder tab. This folder contains monitoring area and worst site information, as well as required sampling frequency data. Click forward to advance.

33. Update Monitors - Monitor Type History To record monitor type data, select the Monitor Type History folder tab. All monitor type information, including monitor description and objective, is contained on the Monitor Type History tab. Click forward to advance.

34. Update Monitors - Sampling Schedule Choose the Sampling Schedule folder tab to enter sampling information for the selected monitor. Users may record the sampling start and end dates, the month, and the number of scheduled samples. Click forward to advance.

35. Update Monitors - Streets Select the Streets folder tab to continue updating monitor information. Users may list nearby streets to better identify the location of the monitor. Click forward to advance.

36. Update Monitors - Obstructions Continue updating monitors by selecting the Obstructions folder tab. Record information about obstructions to the monitor, including description and relative location. Click forward to advance.

37. Update Monitors - Collocated Monitors Select the Collocated Monitors folder to complete monitor data. Save changes to the selected monitor and exit the form by selecting the Save and Close buttons. To cancel changes, choose the Cancel button. Choose Back to Menu to return to the menu.

38. Standard Report - Quick Look The new AQS provides several standard reports. Standard reports are divided into four categories: Raw Data, Summary Data, Site/Monitor Data, and Quality Assurance. The user can easily generate any standard report. In this instance, the Quick Look report has been selected. The Quick Look report displays summary data for the selected pollutant. The format of the Quick Look report is dependent on the pollutant specified. Click forward to advance.

39. Report Criteria - Geographic Begin specifying report criteria by selecting geographic parameters. Users can specify large or small geographic areas; selections range from all countries to single monitors. Click forward to advance.

40. Report Criteria - Time/Date Selection Select the Time folder tab to input start and end times. Users may query the database for all dates, a selected date range, or for a specific date and time. Time may be reported in Standard or Local Time. Click forward to advance.

41. Report Criteria - Parameters Select the Parameters tab to choose pollutants. Users can easily select groups of pollutants, such as PAMS or Criteria, by pressing the associated button. Individual pollutants may be selected from the Parameter List. Click forward to advance.

42. Report Criteria - Attributes Users may further limit report results by specifying additional Attributes. Attributes include Monitor Type, Interval, Reporting Organization, Method, Objective, Land Use, and Sampled After. Click forward to advance.

43. Report Criteria - Report Options Use the Report Options tab to group the data, select the display units for the data, and to determine the type of data to be included in the report. Click forward to advance.

44. Report Criteria - Sort Order The user may sort the report by one or more fields, in ascending or descending order. If no sort order is specified the default order will be used. Click forward to advance.

45. Report Criteria - Disposition Use the Disposition folder tab to select the preferred mode of generation, to view or print the report, and to specify the desired format for the saved report. Choose the Run Report command button to generate the report. Click forward to advance.

46. Standard Report - Quick Look (Example) The resulting standard report is automatically generated and formatted by Oracle’s Data Query based on the user’s report criteria selections. Users may redefine or edit report selection criteria and save their work under a new name. Choose Back to Menu to return to the menu.

47. Standard Queries The new AQS provides several standard queries in addition to ad hoc queries and standard reports. For example, the user can easily extract GeoCommon table data. In this instance, Agency has been selected. The system automatically generates a pre-formatted report using the Agency table data. Users may then refine the report and save the results as a private query. Choose Back to Menu to return to the menu.

48. Online Help Online Help The new AQS provides a fully functional online Help module that includes step- by-step instructions for using all AQS features, definitions for reports, buttons, and data fields, explanations of technical terms, and version and copyright information. Unlike bulky manuals, AQS online Help uses hypertext links, allowing the user to easily jump to related topics and applicable definitions. Choose Back to Menu to return to the menu.

49. N E Discoverer 2000 Oracle Browser is integrated and compatible with Data Query. Browser allows the user to visually display database tables and field relationships. Data can be incrementally viewed as the user drills through different levels of information. Conditions can be created and temporarily disabled for what-if analysis. Oracle Data Query allows the user to create custom reports and perform data analysis without learning SQL or complex database structures. Sort criteria, conditions, and data drills can easily be added to ad-hoc reports. Data Query allows the user to create both tabular and matrix reports, and to quickly generate accompanying graphics. Select a menu item to view more information. AQS Discoverer 2000 AIRS Graphics AIRS Graphics WW W WW W Back to Menu Back to Menu

50. N E AIRS Graphics AIRS Graphics creates maps and charts using data from all AIRS subsystems, including AQS. AG graphics can reveal patterns, trends, and anomalies in air pollution data that may be difficult to discern in report format. Like AQS reports, AG maps and charts have both pre-defined and ad hoc querying options. Thus, AG graphics may be quickly generated to accompany the selected pre- defined report or custom query. The new AQS will be seamlessly integrated with AIRS Graphics, enabling the user to easily produce air quality charts and maps. Transparent user access to AG eliminates the need for multiple logins. Select a menu item to view more information. AQS Discoverer 2000 Discoverer 2000 AIRS Graphics WW W WW W Back to Menu Back to Menu

51. N E World Wide Web Direct public access to air quality data will be possible using the re-engineered AQS. Public users will access the AQS database through a Web Browser, such as Netscape, on the Internet. AQS will provide its public users with formatted reports, like those available in AIRS Executive. In addition to these reports, some pre-defined maps and graphs will be made available. Public users will be able to submit queries against AQS database tables. Public users will be able to view, print, save to a file, or submit a batch query (for large extractions). Select a menu item to view more information. AQS Discoverer 2000 Discoverer 2000 AIRS Graphics AIRS Graphics WW W Back to Menu Back to Menu