GUIDELINE SERIES
          OAQPS NO. 1.2-041
                OOOR76008
     NADB INTERNAL OPERATIONS MANUAL
   US. ENVIRONMENTAL PROTECTION AGENCY
    Office of Air Quality Planning and Standards





      Research Triangle Park, North Carolina

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                      NADB INTERNAL OPERATIONS MANUAL

                       VOLUME IV - OAQPS No.  1.2-041


     The Aerometric and Emissions Reporting System (AEROS) is intended

to serve as a management information system for EPA's air pollution

research and control programs.

     The major components of AEROS are ambient air quality data and

air pollution source and emissions data.  The ambient air quality data

consists of air quality monitoring site descriptions  and the air quality

data reported by measuring instruments at these sites, together with

the appropriate pollutant and method codes required to identify the

pollutants or meteorological parameters which are reported.   The source

and emissions data included in AEROS consist of descriptive  information

about air pollutant emission sources and estimated annual emissions

along with the data required to calculate the emissions for  each source.

When available, results of source emissions tests are also stored in

AEROS.

     In addition to Volume I (AEROS Overview), there  are four additional

volumes which describe AEROS operations in more detail.  Volume II is

the AEROS User's Manual, which gives instructions for users  to input

data tú AEROS, along with detailed systems descriptions.  Volume III,

the AEROS Summary and Retrieval Manual, is intended for those who

want to obtain data from AEROS.  Volume III describes AEROS  reports,

how they may be used, and gives instructions on how to obtain them.

Volume IV is the NADB Internal Operations Manual, which documents, in

detail, all NADB procedures related to AEROS.  Certain portions of

Volume IV may be of interest to persons interested in all details of

AEROS operations, but is intended mainly as a guide for NADB personnel.

Volume V is the AEROS Coding Manual.

     AEROS reports are published periodically and are available from

the Environmental Research Center Library at Research Triangle Park,

North Carolina, or the National Technical Information Service (NTIS)

in Springfield, Virginia.

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