Is there a “standard set” of screening values used in Region 3?
Yes. The “Region 3 BTAG Screening Benchmark” tables provide media-specific sets of ecotoxicological benchmarks that should be used in developing a screening level assessment. These guidelines are to be used to screen exposure through routes other than food chain exposure. The 1995 Region 3 BTAG table is currently being updated and revised benchmarks for freshwater and freshwater sediments are now available. Additional media-specific tables will be posted on this website as they become available. Until the updated tables are available, the values found in the 1995 Region 3 BTAG Table should be utilized. Where appropriate, updated values that may be available in subsequent releases of the EPA Ecological Soil Screening Levels, and the NOAA SQuiRT values should be used in place of the values cited in the 1995 Region 3 BTAG table.
Related Questions
- What values do I use to screen / evaluate exposure via food chain exposure? Does Region 3 have screening values that address this route of exposure?
- How were the toxicity values provided in IRIS on Chromium used to calculate Chromium Screening Levels?
- Is there a "standard set" of screening values used in Region 3?
