Trends In Risk Assessment Research Articles

Health and Environmental Impacts of Smoke from Vegetation Fires: A Review

Smoke exposure is often an inevitable side effect of open vegetation fires (both planned and wild) and is an important public health concern. The objective of this paper is to summarize state-of-the-art knowledge on health and environmental impacts of smoke from vegetation fires, to identify research gaps, and to provide needed information to researchers, land managers, policymakers, health care workers, and the general public. The main components of vegetation fire smoke and their characterizations are identified and evaluated. Concentrations, emission ratios, and emission factors of smoke components and the combined health and environmental effects of all hazardous smoke components from vegetation fire smoke exposure are summarized. Trends in risk assessment of vegetation fire smoke, limitations of current research, and future research needs are discussed.

Risk Assessment and Management in Practice: The Forensicare Risk Assessment and Management Exercise

There is an emerging consensus that the assessment and management of adverse outcomes in mental health, such as violence and self harm, is best achieved by approaches which incorporate validated tools using "structured professional judgement". Although several useful tools have emerged from the literature, there is no clear consensus on the best way to integrate these with clinical practice. This paper describes a framework, the Forensicare Risk Assessment and Management Exercise (F.R.A.M.E.), employed by a statewide community forensic mental health service, which incorporates two structured professional judgement tools, and explicitly integrates these into case management and psychiatric treatment. The potential benefits of the framework are discussed in the context of contemporary trends in risk assessment and management. The F.R.A.M.E. appears to assist with the task of integrating risk assessment with clinical management. Formal evaluative research is indicated before it can be recommended for use by other services.

Trends in Risk Assessment of Chemicals in the European Union

Current legislation in the European Union (EU) requires a risk assessment for industrial chemicals. The underlying procedures and paradigms of such EU risk assessment for new and existing chemicals are explained. The risk assessment is performed according to a harmonised methodology, laid down in the Technical Guidance Documents (TGD). Important new, technical risk assessment aspects covered in a recent revision round of the TGD are highlighted. The most prominent change in the environmental TGD part is the addition of the marine risk assessment, including a Persistent Bioaccumulation and Toxicity (PBT) assessment. In the human health part a significant change is the new data requirement for reproductive toxicity. The performance of both the risk assessment and the risk reduction phase of EU existing chemicals have been evaluated. An important conclusion was that our a priori knowledge on possible risks of chemicals is poor. The European Commission has recently launched a proposal (REACH) for drastically changing the risk management process of industrial chemicals in the EU. Major changes are a shift in responsibility from authorities to industry (including downstream users) for the safe use of chemicals, an acceleration of data collection for ‘non-assessed’ chemicals, and an authorization step for substances of very high concern.

Trends in risk assessment and risk management

Environmental risk assessment has matured into a powerful analytical tool, which is finding ever-wider applications in the arena of policy making and regulation. However, the principal focus of its development to date has been on the technical challenges of characterising and modelling the environmental behaviour and biological action of chemicals, whereas issues concerning its broader socio-political context have been generally neglected. Problem definition, risk analysis and decision making have, therefore, tended to be dominated by experts and by expert opinion. Fresh insights from the social sciences advocate a pluralistic, inclusive approach, with experts participating alongside other stakeholders in a consensual decision making process. Adoption of this paradigm has far reaching consequences for the form and conduct of risk assessment and risk management.

Applying USEPA Risk Assessment Guidance in the 90s

Over the past decade, risk assessment has become increasingly relied upon for helping to make environmental management decisions. This trend has been accompanied by research and refinements in basic risk assessment methodologies to improve our ability to understand and evaluate the human health risks associated with chemical exposures.Despite this progress, significant uncertainties continue to be associated with the risk assessment process. These uncertainties typically derive from gaps in available data regarding chemical toxicity, and from difficulties in reliably estimating the magnitude of chemical exposures. Given these limitations, risk assessment is generally most valuable in evaluating relative risk; for example, when comparing alternatives to achieving a specified goal, setting priorities for protecting human health, or establishing procedures for properly allocating resources. Risk assessment can also be useful for developing regulatory benchmarks such as permit limits for air or water. In many cases, however, the limitations of the risk assessment process make it difficult (if not impossible) to reliably estimate an absolute level of risk, especially for a specific individual in an exposed population. In such cases, risk assessment can be seriously misapplied, and its results misinterpreted.This paper discusses some of the challenges that have been faced by the field of risk assessment during the 1990s. Current trends in risk assessment, and its use by regulatory agencies in making risk management decisions, are also described.