EPA.92c.arsenic2.df


  Arsenic concentrations (ppb) at three background wells and one compliance well 
  (six monthly samples for each well; first four missing at compliance well).  Nondetects 
  reported as <code><5< code="">. 
</5<></code>

datasets

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focus on analyzing chemical concentrations and physical parameters, usually in
the context of mandated environmental monitoring.  Major environmental
statistical methods found in the literature and regulatory guidance documents,
with extensive help that explains what these methods do, how to use them,
and where to find them in the literature.  Numerous built-in data sets from
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Environmental Statistics" (Millard, 2013, Springer).

Steven Millard

EnvStats

Package for Environmental Statistics, Including US EPA Guidance

EPA.92c.arsenic2.df function

A data frame with 24 observations on the following 6 variables.
  <dl>
    <dt><code>Arsenic.orig</code></dt><dd>a character vector of original arsenic concentrations (ppb)</dd> <dt><code>Arsenic</code></dt><dd>a numeric vector of arsenic concentrations with <code><5< code=""> coded as <code>5</code></5<></code></dd> <dt><code>Censored</code></dt><dd>a logical vector indicating which observations are censored</dd> <dt><code>Month</code></dt><dd>a factor indicating the month of collection</dd> <dt><code>Well</code></dt><dd>a factor indicating the well number</dd> <dt><code>Well.type</code></dt><dd>a factor indicating the well type (background vs. compliance)</dd> </dl> 

Format

USEPA. (1992c). <em>Statistical Analysis of Ground-Water Monitoring Data at RCRA Facilities: Addendum to Interim Final Guidance</em>. Office of Solid Waste, U.S. Environmental Protection Agency, Washington, D.C.  p.60.

Source


  Arsenic concentrations (ppb) at three background wells and one compliance well 
  (six monthly samples for each well; first four missing at compliance well).  Nondetects 
  reported as <code><5</code>. 


EPA.92c.arsenic2.df: Arsenic Concentrations from 1992 USEPA Guidance Document

Description

Usage

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Format

Source