Description Usage Format Source References Examples
Parameter code information for selected chemical constituents, organic compounds, and radionuclides measured for in water samples collected from wells in the U.S. Geological Survey (USGS) water-quality aquifer monitoring network, Idaho National Laboratory and vicinity, Idaho.
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A data frame with 74 records and 7 variables:
parm_cd
USGS 5-digit parameter code
parameter_group_nm
parameter group name, such as "Radiochemical"
parameter_nm
long parameter name, such as "Strontium-90, water, unfiltered, picocuries per liter"
casrn
Chemical Abstracts Service
(CAS) registry number,
such as "10098-97-2"
for Strontium-90
srsname
Substance Registry Services
(SRS) name,
such as "Strontium-90"
parameter_units
parameter units.
Unit abbreviations and descriptions are:
"mg/L"
milligrams per liter,
"mg/L as N"
milligrams per liter as Nitrogen,
"ug/L"
microgram per liter, and
"pCi/L"
picocuries per liter.
siunitx
parameter units formatted for LaTeX using the siunitx
package notation.
USGS water data acquired from the National Water Information System (U.S. Geological Survey, 2019).
The SRS name (srsname
)
for "Trihalomethanes (four), total, from SDWA NPDWR" was shorten to its preferred acronym "TTHM4".
U.S. Geological Survey, 2019, National Water Information System—web services, accessed June 11, 2019, from https://doi.org/10.5066/F7P55KJN.
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