Practical Methods for Meeting Remediation Goals at Hazardous Waste Sites

Risk-based cleanup goals or preliminary remediation goals (PRGs) are established at hazardous waste sites when contaminant concentrations in air, soil, surface water, or groundwater exceed specified acceptable risk levels. When derived in accordance with the Environmental Protection Agency's risk assessment guidance, the PRG is intended to represent the average contaminant concentration within an exposure unit area that is left on the site following remediation. The PRG, however, frequently has been used inconsistently at Superfund sites with a number of remediation decisions using the PRG as a not-to-exceed concentration (NTEC). Such misapplications could result in overly conservative and unnecessarily costly remedial actions. The PRG should be applied in remedial actions in the same manner in which it was generated. Statistical methods, such as Bower's Confidence Response Goal, and mathematical methods such as "iterative removal of hot spots," are available to assist in the development of NTECs that ensure the average postremediation contaminant concentration is at or below the PRG. These NTECs can provide the risk manager with a more practical cleanup goal. In addition, an acute PRG can be developed to ensure that contaminant concentrations left on-site following remediation are not so high as to pose an acute or short-term health risk if excessive exposure to small areas of the site should occur. A case study demonstrates cost savings of five to ten times associated with the more scientifically sound use of the PRG as a postremediation site average, and development of a separate NTEC and acute PRG based on the methods referenced in this article.     

Illinois's child welfare research agenda: an approach to building consensus for practice-based research

This article presents a consensus-building initiative to develop a statewide research agenda that responds to the needs of Illinois's child welfare community. Researchers conducted this process through a university-community partnership to engage those interested in child welfare services. The process and findings resulted in a living document that will guide child welfare research throughout the state. Findings of the inquiry suggest that the development of best practice models may be one of the most important contributions research can make to practice.     

The joint contribution of experiencing and witnessing violence during childhood on child abuse in the parent role

This article examines adult respondents' abuse of children as a consequence of their own childhood experiences of abuse, both direct experiences of childhood violence (hitting) and exposure to interparental violence (witnessing). In particular, the study examines the extent to which these factors function interactively: Are both experience and exposure necessary or is either sufficient to increase disproportionately the probability of child abuse? Using data from the Second National Family Violence Survey, results of a logistic regression analysis show that either or both factors produced higher than average and relatively similar rates of child abuse. Only respondents with neither form of family violence reported lower than average rates of abuse of their own children. The analysis controlled for gender, race, family income, and family structure; race was the only control variable to be significantly associated with child abuse. Finally, no control variable modified the interaction between the family violence variables.     

PRN medication use in inpatient psychiatry

1. Administration of p.r.n. medications occurs frequently for staff nurses in inpatient psychiatry. 2. The appropriate use of p.r.n. medications is not well addressed in nursing textbooks or hospital policies and procedures. 3. Thorough assessment of patients is an essential step in the safe administration of p.r.n. medications. 4. Concise, accurate clinical evaluations may be the most successful way to determine the best dose of medication for each patient.     

Children of Adolescent Mothers: Cognitive and Behavioral Status at Age Six

The cognitive and behavioral status at age six years of 185 children of adolescent mothers (60.5% boys) were assessed using the mother (CBCL) and teacher (TRF) report forms of the Child Behavior Checklist and the Bracken Basic Concepts Scale. There was evidence for impairment in all areas of functioning. More than half of the sample exceeded the borderline clinical cutoff (T = 60) on either the CBCL or TRF Total Problem score, and nearly half the sample had Bracken scores that were more than 1 SD below the normative mean. Only 26.9% of the children were in the normal range on all three measures. These results are discussed in terms of implications for social work practice with children and adolescent mother families.     

Urban tree cover: an ecological perspective

Analysis of urban tree cover is generally limited to inventories of tree structure and composition on public lands. This approach provided valuable information for resource management. However, it does not account for all tree cover within an urban landscape, thus providing insufficient information on ecological patterns and processes. We propose evaluating tree cover for an entire urban area that is based on patch dynamics. Treed patches are classified by their origin, structure, and management intensity. A patch approach enables ecologists to evaluate ecological patterns and processes for the entire urban landscape and to examine how social patterns influence these ecological patterns and processes.