EPA.94b.tccb.df

1,2,3,4-Tetrachlorobenzene (TcCB) concentrations (ppb) in soil samples at a 
  reference area and a cleanup area.  There are 47 observations for the reference area 
  and 77 for the cleanup area.  There is only one nondetect in the dataset (it's in the 
  cleanup area), and it is reported as <code>ND</code>.  Here it is assumed the nondetect is 
  less than the smallest reported value, which is 0.09 ppb.  Note that on page 6.23 of 
  USEPA (1994b), a value of 25.5 for the Cleanup Unit was erroneously omitted.

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  scripts reproducing analyses presented in the book "EnvStats:  An R Package for 
  Environmental Statistics" (Millard, 2013, Springer).

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Package for Environmental Statistics, Including US EPA Guidance

EPA.94b.tccb.df function

USEPA. (1994b). <em>Statistical Methods for Evaluating the Attainment of Cleanup Standards, Volume 3: Reference-Based Standards for Soils and Solid Media</em>. 
  EPA/230-R-94-004. Office of Policy, Planning, and Evaluation, U.S. Environmental Protection Agency, Washington, D.C. pp.6.22-6.25.

EPA.94b.tccb.df: 1,2,3,4-Tetrachlorobenzene Concentrations from 1994 USEPA Guidance Document

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