Function downloads and returns the newest available Criteria Search Tool and associated EPA 304a Criteria pollutant names as a reference dataframe. This dataframe is used in TADA_CreateParamRef() and TADA_CreateParamUseRef() as the basis for the pulling in EPA304a recommended pollutant names and use names.
Value
Dataframe of EPA304a recommended criteria from EPA's Criteria Search Tool (CST) for a pollutant and use name.
Details
Currently only characteristics identified by the TADA Working Group as priorities are included in the TADA crosswalk of WQP/TADA characteristics and CST pollutant names. Run the following code in the console to review the crosswalk: 'utils::read.csv(system.file("extdata", "TADAPriorityCharUnitRef.csv", package = "EPATADA"))'