EPA.09.Table.9.3.df

Arsenic, mercury, and strontium concentrations (mg/L) from a single well 
 collected approximately quarterly. Nondetects are indicated by the 
 data qualifier <code>U</code>.

datasets

Graphical and statistical analyses of environmental data, with
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
regulatory guidance documents and environmental statistics literature. Includes
scripts reproducing analyses presented in the book "EnvStats: An R Package for
Environmental Statistics" (Millard, 2013, Springer, ISBN 978-1-4614-8455-4,
<https://www.springer.com/book/9781461484554>).

Alexander Kowarik

EnvStats

Package for Environmental Statistics, Including US EPA Guidance

Steven P. Millard

EPA.09.Table.9.3.df function

A data frame with 15 observations on the following 8 variables.<dl class="dl-horizontal">
 <dt><code>Date.Collected</code></dt><dd>a factor indicating the date of collection</dd>
 <dt><code>Date</code></dt><dd>a Date object indicating the date of collection</dd>
 <dt><code>Arsenic.mg.per.L</code></dt><dd>a numeric vector of arsenic concentrations (mg/L)</dd>
 <dt><code>Arsenic.Data.Qualifier</code></dt><dd>a factor indicating the data qualifier for arsenic</dd>
 <dt><code>Mercury.mg.per.L</code></dt><dd>a numeric vector of mercury concentrations (mg/L)</dd>
 <dt><code>Mercury.Data.Qualifier</code></dt><dd>a factor indicating the data qualifier for mercury</dd>
 <dt><code>Strontium.mg.per.L</code></dt><dd>a numeric vector of strontium concentrations</dd>
 <dt><code>Strontium.Data.Qualifier</code></dt><dd>a factor indicating the data qualifier for strontium</dd>
 </dl>

Format

Arsenic, Mercury and Strontium Concentrations in Table 9-3 of 2009 USEPA Guidance Document — EPA.09.Table.9.3.df

A data frame with 15 observations on the following 8 variables.<dl class='dl-horizontal'>
 <dt><code>Date.Collected</code></dt><dd>a factor indicating the date of collection</dd>
 <dt><code>Date</code></dt><dd>a Date object indicating the date of collection</dd>
 <dt><code>Arsenic.mg.per.L</code></dt><dd>a numeric vector of arsenic concentrations (mg/L)</dd>
 <dt><code>Arsenic.Data.Qualifier</code></dt><dd>a factor indicating the data qualifier for arsenic</dd>
 <dt><code>Mercury.mg.per.L</code></dt><dd>a numeric vector of mercury concentrations (mg/L)</dd>
 <dt><code>Mercury.Data.Qualifier</code></dt><dd>a factor indicating the data qualifier for mercury</dd>
 <dt><code>Strontium.mg.per.L</code></dt><dd>a numeric vector of strontium concentrations</dd>
 <dt><code>Strontium.Data.Qualifier</code></dt><dd>a factor indicating the data qualifier for strontium</dd>
 </dl>

EPA.09.Table.9.3.df: Arsenic, Mercury and Strontium Concentrations in Table 9-3 of 2009 USEPA Guidance Document

Description

Usage

Arguments

Format