EnvStats (version 2.4.0)

EPA.09.Ex.21.5.beryllium.df: Beryllium Concentrations from Example 21-5 of 2009 USEPA Guidance Document

Description

Beryllium concentrations (ppb) at one well (four years of quarterly measures).

Usage

data(EPA.09.Ex.21.5.beryllium.df)

Arguments

Format

A data frame with 16 observations on the following 3 variables.

Year

a factor indicating the year of collection

Quarter

a factor indicating the quarter of collection

Beryllium.ppb

a numeric vector of beryllium concentrations (ppb)