Toxicological benchmarks for screening contaminants of potential concern for effects on sediment-associated biota: 1996 revision

摘要: A hazardous waste site may contain hundred of chemicals; therefore, it is important to screen contaminants potential concern the ecological risk assessment. Often this screening done as part a Screening Assessment, purpose which evaluate available data, identify data gaps, and concern. |Screening be accomplished by using set toxicological benchmarks. These benchmarks are helpful in determining whether warrant further assessment or at level that requires no attention. If chemical concentration reported detection limit exceeds proposed lower benchmark, more analysis needed determine hazards posed chemical. If, however, falls below benchmark value, eliminated from study. This report briefly describes three categories approaches development sediment quality based on analytical chemistry, toxicity test results, field survey data. fourth integrative approach incorporates all types