R/atrazine.R

In SwampThingPaul/NADA2: Data Analysis for Censored Environmental Data

#' Atrazine concentrations in Nebraska ground water
#'
#' @description
#' From the `NADA` R-Package.
#'
#' Atrazine concentrations in a series of Nebraska wells before (June) and after (September) the growing season.
#'
#' Objective is to determine if concentrations increase from June to September. There is one detection limit, at 0.01 ug/L. Used in Chapters 4, 5, and 9 of the Helsel (2011) book.
#'
#' @usage data(atrazine)
#' @aliases atrazine
#'
#' @docType data
#' @keywords dataset
#' @name atrazine
#' @source Junk et al., 1980. Areal, vertical, and temporal differences in ground water chemistry: II. Journal of Environmental Quality. 9(3) 479 - 483.
#' @references
#' Helsel, D.R., 2011. 2011. Statistics for Censored Environmental Data Using Minitab and R. 2nd ed. John Wiley and Sons, USA, N.J.

"atrazine"