SYMPOSIA PAPER Published: 01 January 1985

Internal Consistency Checks as Part of a Data Validation Process for Chemical Constituents in Ambient Particulate Samples


Internal consistency checks are an excellent means of validating data obtained during field studies of ambient particulate. The specific method used depends on the purpose and scope of the program. Techniques discussed include inspection of data for outliers, inter-sampler comparisons, and ion balance and mass balance techniques. The use of these methods is illustrated with data collected in a variety of field programs. It is concluded that internal consistency checks should be incorporated into the quality assurance program of all field studies.

Author Information

Cadle, SH
Environmental Science Department, General Motors Research Laboratories, Warren, MI
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Developed by Committee: D22
Pages: 89–99
DOI: 10.1520/STP30290S
ISBN-EB: 978-0-8031-4932-8
ISBN-13: 978-0-8031-0224-8