PrecipNitrogen: Precipitation Water Quality

In USGS-R/smwrData: Example hydrologic data to support statistical methods in water resources

Precipitation Water Quality

Description

Ammonia plus organic nitrogen concentrations in precipitation.

Usage

PrecipNitrogen

Format

Data frame with 20 rows and 2 columns

Name	Type	Description
NH3plusOrganic	numeric	Concentration of ammonia plus organic nitrogen
Site	factor	Land-use type

Note: all concentrations are in milligrams per liter as nitrogen.

Source

Example data in chapter 5 in Helsel and Hirsch (2002)

References

Helsel, D.R. and Hirsch, R.M., 2002, Statistical methods in water resources: U.S. Geological Survey Techniques of Water-Resources Investigations, book 4, chap. A3, 522 p.

Examples

data(PrecipNitrogen)
# Compare concentrations between residential and industrial land uses
with(PrecipNitrogen, boxplot(split(NH3plusOrganic, Site), range=0, log='y'))

USGS-R/smwrData documentation built on Oct. 18, 2022, 9:56 a.m.