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Main Title Environmental monitoring of a wastewater treatment plant /
Author Johnson, D. E., ; Johnson, David E. ; Camann, D. E. ; Harding, H. J. ; Sorber, C. A.
Other Authors
Author Title of a Work
Johnson, Dewey E.
CORP Author United States. Health Effects Research Laboratory (Cincinnati, Ohio)
Publisher Health Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available from the National Technical Information Service.
Year Published 1979
Report Number EPA-600/1-79-027; EPA-R-805533
Stock Number PB80-103211
OCLC Number 07337114
Subjects Sewage--Environmental aspects--United States. ; Sewage disposal plants--United States. ; Water Pollutants.
Additional Subjects Sewage disposal plants--Testing ; Water--Pollution--Measurement ; Sewage treatment ; Waste water ; Aerosols ; Monitoring ; Public health ; Concentration(Composition) ; Viruses ; Epidemiology ; Tigard(Oregon) ; Environmental monitoring ; Water pollution sampling ; Water pollution control ; Pathogens
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-1-79-027 Headquarters Library/Washington,DC 04/21/2014
EJBD  EPA 600-1-79-027 Headquarters Library/Washington,DC 03/14/2016
ELBD  EPA 600-1-79-027 AWBERC Library/Cincinnati,OH 03/26/2012
EMBD  EPA/600/1-79/027 NRMRL/GWERD Library/Ada,OK 02/03/1995
NTIS  PB80-103211 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 125 pages : illustrations, maps ; 28 cm.
A wastewater aerosol monitoring program was conducted at an advanced wastewater treatment facility using the activated sludge process. This plant was recently constructed next to an elementary school in Tigard, Oregon. Wastewater aerosols containing pathogenic organisms are generated by the aeration basin (within 400 meters of the classroom area) and by an aerated surge basin (within 50 meters of the school playground). From a preliminary microbial screen of the wastewater, predominant indicator and pathogenic microorganisms were selected for routine wastewater and aerosol monitoring. The geometric mean aerosol concentrations at 30 to 50 meters downwind of the aeration basin were 5.8 cfu/cu.m. of total coliforms, 2.0 cfu/cu.m. of fecal streptococci, 9.1 cfu/cu.m. of mycobacteria, 7 cfu/cu.m. of Pseudomonas, 0.7 pfu/cu.m. of coliphage, and <0.0009 pfu/cu.m. of enteroviruses. The inability to detect enteroviruses in air resulted from their low concentration (relative to other test organisms) in the wastewater and from their adsorption onto and incorporation into the mixed liquor suspended solids which are not easily aerosolized. While it is a relatively insensitive measure, attendance at the nearby school and eight control schools provided no evidence of adverse effects from wastewater treatment plant operation. If any adverse effects had occurred, it was slight enough to be completely obscured by the usual school absenteeism factors.
"Southwest Research Institute." "Field Studies Division, Health Effects Research Laboratory." "August 1979." Includes bibliographical references. "Grant no. R805533."