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A ut hor Fordyce, J. S.
Air pollution source identification
P ublic a t ion Y e a r 1975
NTRS Full-Text:
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Author and Affiliation:
Fordyce, J. S.
Abstract:
The techniques available for source identification are reviewed: remote sensing, injected tracers, and pollutants themselves as tracers. The use of the large number of trace elements in the ambient airborne particulate matter as a practical means of identifying sources is discussed. Trace constituents are determined by sensitive, inexpensive, nondestructive, multielement analytical methods such as instrumental neutron activation and charged particle X-ray fluorescence. The application to a large data set of pairwise correlation, the more advanced pattern recognition-cluster analysis approach with and without training sets, enrichment factors, and pollutant concentration rose displays for each element is described. It is shown that elemental constituents are related to specific source types: earth crustal, automotive, metallurgical, and more specific industries. A field-ready source identification system based on time and wind direction resolved sampling is described.
[PDF Size: 851 KB] (NASA Lewis Research Center, Cleveland, OH, United States)
Publication Date:
Jan 01, 1975
Document ID:
19750013759
Accession Number:
75N21831
Subject Category:
ENVIRONMENT POLLUTION
Report/Patent Number:
NASA-TM-X-71704, E-8313
Document Type:
Conference Paper
Publisher Information:
United States
Meeting Information:
Sources and Emissions Workshop of the 2d Interagency Comm. on Marine Sci. and Eng. Conf.; 25-27 Mar. 1975; Argonne, IL; United States
(Acquired Nov 22, 1995)
A v a ila bilit y Ty pe Online NTRS full-text available D oc um e nt Ty pe Conference Paper N A S A C e nt e r Glenn Research Center Or ga niz a t ion NASA Lewis Research Center S ubje c t C a t e gor y ENVIRONMENT POLLUTION S ubje c t Te r m s AIR POLLUTION AIR SAMPLING EXHAUST GASES POLLUTION MONITORING REMOTE SENSORS TRACE ELEMENTS
Financial Sponsor:
NASA; United States
Organization Source:
NASA Lewis Research Center; Cleveland, OH, United States
Description:
35p; In English
Distribution Limits:
Unclassified; Publicly available; Unlimited
Rights:
No Copyright
NASA Terms:
AIR POLLUTION; AIR SAMPLING; POLLUTION MONITORING; EXHAUST GASES; REMOTE SENSORS; TRACE ELEMENTS; WIND (METEOROLOGY)
Imprint And Other Notes:
Presented at the Sources and Emissions Workshop of the 2d Interagency Comm. on Marine Sci. and Eng. Conf., Argonne, Ill., 25-27 Mar. 1975
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