inldata (version 1.0.3)

benchmarks: Benchmark Concentrations

Description

Water-quality benchmark concentrations of selected radionuclides, organic compounds, and chemical constituents. Benchmarks include: the U.S. Environmental Protection Agency (USEPA) Maximum Contaminant Levels (MCLs) and Human Health Benchmarks for Pesticides (HHBPs), and the U.S. Geological Survey (USGS) Health-Based Screening Levels (HBSLs).

Usage

benchmarks

Format

A data frame with 74 records and 9 variables:

parm_cd

USGS 5-digit parameter code, see parameters dataset for details.

mcl

USEPA MCLs.

hhbp_noncancer

USEPA Chronic Noncancer HHBPs

hhbp_cancer_min

USEPA Carcinogenic HHBPs for a one-in-one million cancer risk.

hhbp_cancer_max

USEPA Carcinogenic HHBPs for a one-in-ten thousand cancer risk.

hbsl_noncancer

USGS Noncancer HBSLs

hbsl_cancer_min

USGS Cancer HBSLs for a one-in-one million cancer risk.

hbsl_cancer_max

USGS Cancer HBSLs for a one-in-ten thousand cancer risk.

remark

comments

Row names for the data frame indicate the Substance Registry Services (SRS) name and parameter units.

References

U.S. Environmental Protection Agency, 2015, Protection of environment---Code of Federal Regulations 40, Part 141, Subpart G, National Primary Drinking Water Regulations, Maximum Contaminant Levels and Maximum Residual Disinfectant Levels: Washington, D.C., Office of the Federal Register, National Archives and Records Administration.

Examples

# NOT RUN {
str(benchmarks)
rownames(benchmarks)

# }