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OLS Field Name OLS Field Data
Main Title Source assessment : crushed stone /
Author Blackwood, T. R. ; Chalekode, P. K. ; Wachter., R. A.
Other Authors
Author Title of a Work
Chalekode, P. K.,
Wachter, R. A.,
CORP Author Monsanto Research Corp., Dayton, Ohio.;Industrial Environmental Research Lab., Cincinnati, Ohio.
Publisher Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1978
Report Number EPA-600/2-78-004l; MRC-DA-536; EPA-68-02-1874; PB284029
Stock Number 22161
OCLC Number 04144106
ISBN pbk.
Subjects Crushed stone industry--Environmental aspects--United States. ; Air--Pollution--Measurement.
Additional Subjects Air pollution control ; Crushed stone ; Industrial wastes ; Sources ; Mining ; Forecasting ; Concentration(Composition) ; Assessments ; Trends ; Technology ; Sampling ; Particles ; Silicon dioxide ; Emission factors
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA-600/2-78-004L Headquarters Library/Washington,DC 04/09/2014
EJBD  EPA-600/2-78-004L c.1 Headquarters Library/Washington,DC 04/09/2014
ESAD  EPA 600-2-78-004L Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-284 029 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation v. : ill. ; 28 cm.
Abstract This report describes a study of air emissions from crushed stone production. The potential environmental effect of the source is evaluated. Crushed stone production in 1972 was 1.07 x 10 to the 8th power metric tons (1.18 x 10 to the 8th power tons), 68% of which was traprock. Contingency forecasts of increased crushed stone demand in the year 2000 range from 300% to 490% of 1968 levels. Atmospheric emissions of respirable particulates (< 7 micrometers) occur in the two areas of operation: mining from the open quarry, and processing at the crushing and screening plant. The emission factor for respirable particulates from the entire facility is 3.25 g/metric ton (0.007 lb/ton) + or - 2.54 g/metric ton (0.005 lb/ton) at the 95% confidence level. Free silica comprises 1.6% of these particulates by weight. The primary crusher and quarrying unit operations account for 73.5% of the respirable particulates. The emission factor for total particulates is 28.4 g/metric ton (0.57 lb/ton) + or - 24.5 g/metric ton (0.049 lb/ton)at the 95% confidence limit. In order to evaluate the potential environmental effect of crushed stone plants, a severity factor was defined as the ratio of the maximum ground level concentration of an emission to the ambient air quality standard for criteria pollutants and to a modified threshold limit value for other pollutants. No emerging technology of specific importance to air pollution control in the crushed stone industry was found in this study.
Notes Contract 68-02-1874, program element no. 1BB610. Issued May 1978. Includes bibliographical references.
Place Published Cincinnati, Ohio Springfield, Va.
Supplementary Notes See also report dated Mar 78, PB-281 423.
Corporate Au Added Ent Industrial Environmental Research Laboratory (Cincinnati, Ohio)
Corp Au Ser Add Ent United States. Environmental protection technology series ;
PUB Date Free Form 1978-
Series Title Untraced Environmental protection technology series ; EPA-600/2-78-004 l
NTIS Prices PC A05/MF A01
BIB Level m
Cataloging Source OCLC/T
Merged OCLC records 249459957
OCLC Time Stamp 20110202172655
Language eng
SUDOCS Number EP 1.23/2:
Origin OCLC
OCLC Rec Leader 01579cam 2200385Ii 45020