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Interpreting Non-Detect Data Correctly
Hosted by U.S. EPA
OSRTI

For most environmental professionals, the way to deal with "nondetects" is less than obvious. Values below detection or reporting limits result from measuring trace amounts of a variety of organic and inorganic chemicals. This course provides an overview of up-to-date (maximum likelihood and survival analysis) methods for computing summary statistics, hypothesis tests, and regression for data with one or more detection limits. The focus will be on what not do, the problems with substituting numbers, and what software is available. The ...  [click for more]

For general information contact Jerri Town (EMS, Inc.) by telephone at 301-589-5318 , Ext. 25 or via e-mail at jerri.town@emsus.com

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