EnvStats (version 2.3.1)

EPA.89b.loglead.df: Log-transformed Lead Concentrations from 1989 USEPA Guidance Document

Description

Log-transformed lead concentrations (\(\mu\)g/L) at two background and four compliance wells (four monthly samples for each well).

Usage

EPA.89b.loglead.df

Arguments

Format

A data frame with 24 observations on the following 4 variables.

LogLead

Natural logarithm of lead concentrations (\(\mu\)g/L)

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)