anlz_sedimentpel: Get sediment PEL ratios at stations in Tampa Bay

In tbep-tech/tbeptools: Data and Indicators for the Tampa Bay Estuary Program

Get sediment PEL ratios at stations in Tampa Bay

Description

Get sediment PEL ratios at stations in Tampa Bay

Usage

anlz_sedimentpel(
  sedimentdata,
  yrrng = c(1993, 2023),
  bay_segment = c("HB", "OTB", "MTB", "LTB", "TCB", "MR", "BCB"),
  funding_proj = "TBEP"
)

Arguments

sedimentdata	input sediment data.frame as returned by read_importsediment
yrrng	numeric vector indicating min, max years to include, use single year for one year of data
bay_segment	chr string for the bay segment, one to many of "HB", "OTB", "MTB", "LTB", "TCB", "MR", "BCB"
funding_proj	chr string for the funding project, one to many of "TBEP" (default), "TBEP-Special", "Apollo Beach", "Janicki Contract", "Rivers", "Tidal Streams"

Details

Average PEL ratios for all contaminants graded from A to F for benthic stations monitored in Tampa Bay are estimated. The PEL is a measure of how likely a contaminant is to have a toxic effect on invertebrates that inhabit the sediment. The PEL ratio is the contaminant concentration divided by the Potential Effects Levels (PEL) that applies to a contaminant, if available. Higher ratios and lower grades indicate sediment conditions that are likely unfavorable for invertebrates. The station average combines the PEL ratios across all contaminants measured at a station and the grade applies to the average.

The grade breaks for the PEL ratio are 0.00756, 0.02052, 0.08567, and 0.28026, with lower grades assigned to the higher breaks.

Value

A data.frame object with average PEL ratios and grades at each station

See Also

show_sedimentpelmap

Examples

anlz_sedimentpel(sedimentdata)

tbep-tech/tbeptools documentation built on April 13, 2025, 4:50 p.m.