Toxicological benchmarks for screening potential contaminants of concern for effects on soil and litter invertebrates and heterotrophic process
One of the initial stages in ecological risk assessments for hazardous waste sites is the screening of contaminants to determine which of them are worthy of further consideration as {open_quotes}contaminants of potential concern.{close_quotes} This process is termed {open_quotes}contaminant screening.{close_quotes} It is performed by comparing measured ambient concentrations of chemicals to benchmark concentrations. Currently, no standard benchmark concentrations exist for assessing contaminants in soil with respect to their toxicity to soil- and litter-dwelling invertebrates, including earthworms, other micro- and macroinvertebrates, or heterotrophic bacteria and fungi. This report presents a standard method for deriving benchmarks for this purpose, sets of data concerning effects of chemicals in soil on invertebrates and soil microbial processes, and benchmarks for chemicals potentially associated with United States Department of Energy sites. In addition, literature describing the experiments from which data were drawn for benchmark derivation. Chemicals that are found in soil at concentrations exceeding both the benchmarks and the background concentration for the soil type should be considered contaminants of potential concern.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10110082
- Report Number(s):
- ES/ER/TM-126; ON: DE95004879; TRN: 95:001241
- Resource Relation:
- Other Information: PBD: Sep 1994
- Country of Publication:
- United States
- Language:
- English
Similar Records
Toxicological Benchmarks for Screening Potential Contaminants of Concern for Effects on Soil and Litter Invertebrates and Heterotrophic Process
Toxicological benchmarks for screening potential contaminants of concern for effects on terrestrial plants. Environmental Restoration Program
Related Subjects
54 ENVIRONMENTAL SCIENCES
POLLUTANTS
ECOLOGICAL CONCENTRATION
SCREENING
TOXICITY
BIOLOGICAL EFFECTS
SOILS
CONTAMINATION
INVERTEBRATES
RISK ASSESSMENT
BACTERIA
FUNGI
BENCHMARKS
MICROORGANISMS
560300
540220
CHEMICALS METABOLISM AND TOXICOLOGY
CHEMICALS MONITORING AND TRANSPORT