Record Display for the EPA National Library Catalog


Main Title A Fortran program for computing the pollutant standards index (PSI) /
Author Ott, Wayne R.,
CORP Author Environmental Protection Agency, Washington, DC.
Publisher Environmental Protection Agency, Office of Research and Development, Office of Monitoring and Technical Support, Monitoring Technology Division,
Year Published 1978
Report Number EPA-600/4-78-001; FSWEC-80/0135A
Stock Number 20460
OCLC Number 04797437
ISBN pbk.
Subjects Air--Pollution--Mathematical models
Additional Subjects Air pollution ; Computer programs ; Standards ; Concentration(Composition) ; Carbon monoxide ; Ozone ; Nitrogen dioxide ; Sulfur dioxide ; Statistical analysis ; Indexes(Ratios) ; Fortran ; Pollutant standards index ; Total suspended particulates ; IBM-360 computers ; IBM-370 computers ; INDEXPLOT computer program ; Fortran 4 programming language ; Air quality ; Time series analysis ; Pollution Standards Index
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-4-78-001 Headquarters Library/Washington,DC 01/16/2012
EJBD  EPA 600/4-78-001 Headquarters Library/Washington,DC 08/13/2013
EKBD  EPA-600/4-78-001 Research Triangle Park Library/RTP, NC 08/01/2003
ESAD  EPA 600-4-78-001 Region 10 Library/Seattle,WA 09/12/2017
NTIS  PB83-154740 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
NTIS  PB-289 924 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 65 pages : illustrations ; 28 cm.
This report gives full documentation and serves as a user's manual for INDEX.PLOT, a Fortran computer program designed to calculate the Pollutant Standards Index (PSI). The PSI was proposed in the Federal Register in September 1976 by the Environmental Protection Agency as a nationally uniform air pollution index, and is intended for use by State and local air pollution control agencies under Section 319 of the Clean Air Act. This computer program, which was originally developed to test the structure of PSI, has now been expanded as a general purpose program which can compute daily index values for a month, a season, a year, or longer. The program consists of 563 Fortran statements and contains seven specialized subroutines. By use of the subroutines, the main program: lists the raw data, along with any data set labels; inventories missing values in the data set; plots a time series graph of PSI values on the line printer; calculates statistics for PSI (mean, standard deviation, range, coefficients of skewness and kurtosis); and generates and plots a frequency distribution of PSI values, along with cumulative frequencies, on the line printer. A complete listing of the program is given, along with sample outputs and descriptions of each subroutine. This program can be used for describing air quality trends, comparing data from different monitoring stations, and developing environmental quality profiles. (Color illustrations reproduced in black and white)
May 1978. Includes bibliographical references.