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EPA.09.Ex.19.5.mercury.df: Mercury Concentrations from Example 19-5 of 2009 USEPA Guidance Document

Description

Mercury concentrations (ppb) at four background and two compliance wells.

Usage

EPA.09.Ex.19.5.mercury.df

Arguments

Format

A data frame with 36 observations on the following 6 variables.

Event

a factor indicating the time of collection

Well

a factor indicating the well number

Well.type

a factor indicating the well type (background vs. compliance)

Mercury.ppb.orig

a character vector of original mercury concentrations (ppb)

Mercury.ppb

a numeric vector of mercury concentrations (ppb) with nondetects set to their detection limit

Censored

a logical vector indicating which observations are censored