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EnvStats (version 3.0.0)

EPA.94b.lead.df: Lead Concentrations from 1994 USEPA Guidance Document

Description

Lead concentrations (mg/Kg) in soil samples at a reference area and a cleanup area. Nondetects reported as <39. There are 14 observations for each area.

Usage

EPA.94b.lead.df

Arguments

Format

A data frame with 28 observations on the following 4 variables.

Lead.orig

a character vector of original lead concentrations (mg/Kg)

Lead

a numeric vector of lead concentrations with <39 coded as 39

Censored

a logical vector indicating which observations are censored

Area

a factor indicating the area (cleanup vs. reference)