EnvStats (version 2.3.1)

EPA.09.Ex.17.3.log.chrysene.df: Log-transformed Chrysene Concentrations from Example 17-3 of 2009 USEPA Guidance Document

Description

Log-transformed chrysene concentrations (ppb) at two background and three compliance wells (four monthly measures at each well).

Usage

EPA.09.Ex.17.3.log.chrysene.df

Arguments

Format

A data frame with 20 observations on the following 4 variables.

Month

a factor indicating the month of collection

Well

a factor indicating the well number

Well.type

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

Log.Chrysene.ppb

a numeric vector of log-transformed chrysene concentrations (ppb)