Download or read book Ecological Risk Assessments of Priority Substances in Canada written by RL. Breton and published by . This book was released on 1997 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environment Canada has revised its guidance manual for ecological risk assessments of priority substances under the Canadian Environmental Protection Act. This paper briefly summarizes the guidance provided on: problem formulation; data collection and generation; analysis of entry, exposure and effects; and risk characterization. The purpose of this paper is to discuss some of the difficult issues common to all programs conducting ecological risk assessments of substances, and to describe the approaches we have taken. Example issues include: (1) how should low toxic effects be determined, (2) how should risks be quantified, and (3) how can the ecological consequences of exposures to substances be determined? Finally, comments are provided on the process followed during the preparation of the revised manual. These comments are provided because we believe that the open and transparent process followed was beneficial to the identification and resolution of these and other difficult issues.
Download or read book Ecological Risk Assessments of Priority Substances Under the Canadian Environmental Protection Act written by Canada. Environment Canada and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Assessments of Priority Substances Under the Canadian Environmental Protection Act written by and published by . This book was released on 1997 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Administrative Policy and Process for Conducting Environmental Risk Assessments for Priority Substances written by Canada. Environment Canada and published by . This book was released on 1998 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the initiatives under the Canadian Environmental Protection Act is the Priority Substances Assessment Program. The Program has developed lists of substances that should be given priority for assessment to determine whether they are toxic as defined under Section 11 of the Act. The intent of this document is to provide guidance to those actively involved or interested in the conduct of environmental risk assessments of substances on the second Priority Substances List, published in 1995, which contains 25 substances. It begins with descriptions of the principles and policies adopted by Environment Canada for environmental risk assessments, and of the four stages in such assessments for substances on the second list (initial steps, problem formulation, detailed assessment, and products, approvals, and publishing). Finally, updates on environmental assessments are provided for the substances on the second list.
Download or read book Ecological Risk Assessment of Priority Substances Under the Canadian Environmental Protection Act written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Risk Assessments of Priority Substances Under the Canadian Environmental Protection Act written by and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Priority Substances Assessment Program written by Canada. Environment Canada and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Administrative Policy and Process for Conducting Environmental Risk Assessments for Priority Substances written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Health Risk Assessment for Priority Substances written by and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Canadian Environmental Protection Act (CEPA), proclaimed on June 30, 1988, and amended on June 30, 1989, authorizes the Ministers of the Environment and of Health to investigate a wide variety of substances that may be present in the environment and cause adverse effects on the environment or on human health"--Introduction.
Download or read book Human Health Risk Assessment for Priority Substances written by Canada. Health Canada and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessments and the Priority Substance List Under the Canadian Environmental Protection Act written by and published by . This book was released on 1995 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is to address several questions about the performance of the Environmental Health Directorate in toxicity assessments of substances on the Priority Substances List established under the Canadian Environmental Protection Act (CEPA). The questions are addressed through information obtained from structured interviews with federal employees and a review of pertinent documentation. The report first summarizes the origin of the List, the joint management of the assessment process with Environment Canada, and the review approach, and discusses some aspects of the assessments themselves. The report then assesses the quality & scope of the assessments using a sample of eight substances; examines how the assessments accord with the Health Protection Branch's risk assessment & risk management model; and examines the extent & success of communication with other government bodies & the public on CEPA-related matters. This is followed by discussion of the development of control options and what worked or did not work in the assessment process. Finally, recommendations are made for approaches to the assessment of new entries on the List. The appendix includes a summary of interview topics & responses.
Download or read book Assessing the Health Risks of Priority Substances Under the Canadian Environmental Protection Act written by Canada. Health Protection Branch and published by . This book was released on 1993 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Administrative Policy and Process for Conducting Environmental Risk Assessments for Priority Substances written by Canada. Environment Canada. Chemicals Evaluation Division and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Priority Substances Science Forum written by and published by . This book was released on 1989 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the forum, conducted to provide information on the Canadian Environmental Protection Act (CEPA), the Priority Substances List (PSL), and the assessment process; to present the Federal Government's five-year schedule for addressing the PSL; and to examine the research and information needed to complete the assessments. The document also includes an overview of the forum and recommendations.
Download or read book The Assessment of Risk to Human Health for Priority Substances Under the Canadian Environmental Protection Act written by V. C. Armstrong and published by . This book was released on 1994 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Environmental Protection Act written by Canada. Environment Canada and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Environmental Protection Act written by Canada. Environment Canada and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
