Download or read book Toxicity Assessments of Antimony Barium Beryllium and Manganese for Development of Ecological Soil Screening Levels ECO SSL Using Folsomia Reproduction Benchmark Values written by and published by . This book was released on 2002 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency is developing Ecological Soil Screening Level (Eco-SSL) benchmarks for ecological risk assessment of contaminants at Superfund sites. Benchmarks for invertebrates were developed from existing literature. Insufficient information for barium (Ba), beryllium (Be), manganese (Mn), and antimony (Sb) to generate Eco-SSLs necessitated standardized toxicity testing to fill the data gaps. We used the Folsomia Folsomia candida (F. candida) Reproduction Test in this study. This test was selected on the basis of its ability to measure chemical toxicity to ecologically relevant test species during chronic assay, and its inclusion of at least one reproductive component among the measurement endpoints. Tests were conducted in Sassafras sandy loam soil, which supports relatively high bioavailability of metals. Weathering/aging procedures for spiked treatment soil were incorporated into the study to better reflect the "real world" exposure conditions.
Download or read book Toxicity Assessments of Antimony Barium Beryllium and Manganese for Development of Ecological Soil Screening Levels ECO SSL Using Folsomia Reproduction Benchmark Values written by Carlton T. Phillips and published by . This book was released on 2002-11-01 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency is developing Ecological Soil Screening Level (Eco-SSL) benchmarks for ecological risk assessment of contaminants at Superfund sites. Benchmarks for invertebrates were developed from existing literature. Insufficient information for barium (Ba), beryllium (Be), manganese (Mn), and antimony (Sb) to generate Eco-SSLs necessitated standardized toxicity testing to fill the data gaps. We used the Folsomia Folsomia candida (F. candida) Reproduction Test in this study. This test was selected on the basis of its ability to measure chemical toxicity to ecologically relevant test species during chronic assay, and its inclusion of at least one reproductive component among the measurement endpoints. Tests were conducted in Sassafras sandy loam soil, which supports relatively high bioavailability of metals. Weathering/aging procedures for spiked treatment soil were incorporated into the study to better reflect the "real world" exposure conditions.
Download or read book Toxicity Assessments of Antimony Barium Beryllium and Manganese for Development of Ecological Soil Screening Levels ECO SSL Using Enchytraeid Reproduction Benchmark Values written by and published by . This book was released on 2002 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency is developing Ecological Soil Screening Level (Eco-SSL) benchmarks for ecological risk assessment of contaminants at Superfund sites. Benchmarks for invertebrates Were developed from existing literature. Insufficient information for Ba, Be, Mn, and Sb to generate Eco-SSLs necessitated standardized toxicity testing to fill the data gaps. We used the Enchytraeid Reproduction Test (ERT) with Enchytraeus crypticus in this study. This test was selected on the bases of its ability to measure chemical toxicity to ecologically relevant test species during chronic assay, and its inclusion of at least one reproductive component among the measurement endpoints. Tests were conducted in Sassafras sandy loam soil, which supports relatively high bioavailability of metals. Aging/weathering procedures for amended treatment soil were incorporated into the study to better reflect the "real world" exposure conditions. The toxicity order based on juvenile production was Be> Mn> Sb> Ba with EC20 values of 45, 116, 194, and 585 mg kg-1, respectively. These results show that ERT is a robust and sensitive assay for toxicity assessments and is appropriate for the Eco-SSL development.
Download or read book Toxicity Assessments of Antimony Barium Beryllium and Manganese for Development of Ecological Soil Screening Levels ECO SSL Using Enchytraeid Reproduction Benchmark Values written by Roman G. Kuperman and published by . This book was released on 2002-11-01 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency is developing Ecological Soil Screening Level (Eco-SSL) benchmarks for ecological risk assessment of contaminants at Superfund sites. Benchmarks for invertebrates Were developed from existing literature. Insufficient information for Ba, Be, Mn, and Sb to generate Eco-SSLs necessitated standardized toxicity testing to fill the data gaps. We used the Enchytraeid Reproduction Test (ERT) with Enchytraeus crypticus in this study. This test was selected on the bases of its ability to measure chemical toxicity to ecologically relevant test species during chronic assay, and its inclusion of at least one reproductive component among the measurement endpoints. Tests were conducted in Sassafras sandy loam soil, which supports relatively high bioavailability of metals. Aging/weathering procedures for amended treatment soil were incorporated into the study to better reflect the "real world" exposure conditions. The toxicity order based on juvenile production was Be> Mn> Sb> Ba with EC20 values of 45, 116, 194, and 585 mg kg-1, respectively. These results show that ERT is a robust and sensitive assay for toxicity assessments and is appropriate for the Eco-SSL development.
Download or read book Toxicity Assessments of Antimony Barium Beryllium and Manganese for Development of Ecological Soil Screening Levels ECO SSL Using Earthworm Eisenia Fetida Benchmark Values written by and published by . This book was released on 2002 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency (USEPA), in a collaborative effort with other Federal agencies, states, and private industry, is developing Ecological Soil Screening Levels (Eco-SSLs) for ecological risk assessment of contaminants at Superfund sites. Earthworm (Eisenia fetida) cocoon production and survival tests were conducted in a Sassafras sandy loam soil that supports relatively high bioavailability of barium (Ba), beryllium (Be), manganese (Mn), and antimony (Sb). For the metals tested, cocoon production was a more sensitive endpoint than was survival. Bounded Lowest Observed Effect Concentrations (LOECs) (mg kg-1) for cocoon production, as determined by analysis of variance (ANOVA), were 83, 86, 433, and 1236 for Be, Sb, Ba, and Mn, as compared to LOECs for survival of 110, 697, 1585, and 2222, respectively. Bounded No Observed Effect Concentrations (NOECs) (mg kg-1) for cocoon production, as determined by ANOVA, were 57, 60,258, and 1111 for Be, Sb, Ba, and Mn, as compared to NOECs for survival of 83, 617,1348, and 1444, respectively. Non-linear regression analysis of cocoon production data showed that the relative toxicity (EC20 mg kg-1) of the four metals was in the order of Sb (30) = Be (52)> Ba (370)> Mn (629). These results will be submitted to the Eco-SSL Work ou for review and inclusion in their database.
Download or read book Toxicity Assessments of Antimony Barium Beryllium and Manganese for Development of Ecological Soil Screening Levels ECO SSL Using Earthworm Eisenia Fetida Benchmark Values written by Michael Simini and published by . This book was released on 2002-11-01 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency (USEPA), in a collaborative effort with other Federal agencies, states, and private industry, is developing Ecological Soil Screening Levels (Eco-SSLs) for ecological risk assessment of contaminants at Superfund sites. Earthworm (Eisenia fetida) cocoon production and survival tests were conducted in a Sassafras sandy loam soil that supports relatively high bioavailability of barium (Ba), beryllium (Be), manganese (Mn), and antimony (Sb). For the metals tested, cocoon production was a more sensitive endpoint than was survival. Bounded Lowest Observed Effect Concentrations (LOECs) (mg kg-1) for cocoon production, as determined by analysis of variance (ANOVA), were 83, 86, 433, and 1236 for Be, Sb, Ba, and Mn, as compared to LOECs for survival of 110, 697, 1585, and 2222, respectively. Bounded No Observed Effect Concentrations (NOECs) (mg kg-1) for cocoon production, as determined by ANOVA, were 57, 60,258, and 1111 for Be, Sb, Ba, and Mn, as compared to NOECs for survival of 83, 617,1348, and 1444, respectively. Non-linear regression analysis of cocoon production data showed that the relative toxicity (EC20 mg kg-1) of the four metals was in the order of Sb (30) = Be (52) > Ba (370) > Mn ( 629). These results will be submitted to the Eco-SSL Work ou for review and inclusion in their database.
Download or read book Decision Support Systems for Risk Based Management of Contaminated Sites written by Antonio Marcomini and published by Springer Science & Business Media. This book was released on 2008-12-16 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decision Support Systems for Risk-Based Management of Contaminated Sites addresses decision making in environmental risk management for contaminated sites, focusing on the potential role of decision support systems in informing the management of chemical pollutants and their effects. Considering the environmental relevance and the financial impacts of contaminated sites all over the post-industrialized countries and the complexity of decision making in environmental risk management, decision support systems can be used by decision makers in order to have a more structured analysis of a problem at hand and define possible options of intervention to solve the problem. Accordingly, the book provides an analysis of the main steps and tools for the development of decision support systems, namely: environmental risk assessment, decision analysis, spatial analysis and geographic information system, indicators and endpoints. Sections are dedicated to the review of decision support systems for contaminated land management and for inland and coastal waters management. Both include discussions of management problem formulation and of the application of specific decision support systems. This book is a valuable support for environmental risk managers and for decision makers involved in a sustainable management of contaminated sites, including contaminated lands, river basins and coastal lagoons. Furthermore, it is a basic tool for the environmental scientists who gather data and perform assessments to support decisions, developers of decision support systems, students of environmental science and members of the public who wish to understand the assessment science that supports remedial decisions.
Download or read book EPA R5 written by and published by . This book was released on 1972 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Optical Screen Tool ROST superscript TM written by and published by . This book was released on 1995 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Issue Paper on the Bioavailability and Bioaccumulation of Metals written by and published by . This book was released on 2004 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Inorganic Chemistry written by Itamar Bodek and published by Pergamon. This book was released on 1988 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicological Profile for Manganese written by and published by . This book was released on 2000 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Plants for Toxicity Assessment written by Wun-cheng Wang and published by ASTM International. This book was released on 1990 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First Symposium on Use of Plants for Toxicity Assessment was held in Atlanta, Georgia, on April 19-20, 1989. This publication contains 29 refereed papers divided into six groups: Regulatory Perspectives, Comparative Toxicology, Plants and Xenobiotic Uptake, Plants and Air Pollution, General Phytotoxicology, and New Approaches. The 2nd Symposium on Use of Plants for Toxicity Assessment was held in San Francisco, California, on April 23-24, 1990. This publication contains 35 refereed papers divided into six groups: Regulatory Perspectives, Applications of Plant Bioassays/Photosynthesis, Xenobiotic Uptake by Plants, General Phytotoxicology, Biochemical and Genetic Applications, and New Approaches.
Download or read book Lead in Soil written by Brian E. Davies and published by CRC Press. This book was released on 1988 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Chemical Exposure written by Robert R. Lauwerys and published by CRC Press. This book was released on 2001-04-26 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bestselling resource on industrial chemical assessment just got better. A practical guide to biological monitoring for industrial chemical exposure assessment, the THIRD EDITION of INDUSTRIAL CHEMICAL EXPOSURE: GUIDELINES FOR BIOLOGICAL MONITORING has been completely revised to include the latest developments in the field. In addition to an update of each chapter, major revisions have been made to take into consideration new information available since the publication of the second edition. SEE WHAT'S NEW IN THE THIRD EDITION: Major changes to the sections on lead, benzene, trichloroethylene, and dimethylformamide Fourteen completely new topics: bromine, molybdenum, perchlorate, platinum, n-heptane, ethene, 1,3-butadiene trimethylbenzene, naphthalene, terpenes, acrylamide, pesticides, tetrahydrofuran, methyl tertiarybutyl ether, n-nitrosodiethylamine Discussion of the metabolic fate of chemicals Increased information on the threshold of adverse effects levels Development of biological monitoring methods for assessing the internal dose of additional chemicals This authoritative book summarizes what is known about biological monitoring for inorganic, organic and organometallic substances. It provides a summary table with practical recommendations, giving you quick and easy access to the data. With INDUSTRIAL CHEMICAL EXPOSURE: GUIDELINES FOR BIOLOGICAL MONITORING you will understand the objectives of biological monitoring, the types of biological monitoring methods, their advantages and limitations, as well as practical aspects that must be considered before initiating a biological monitoring program.
Download or read book Cadmium Hazards to Fish Wildlife and Invertebrates written by Ronald Eisler and published by . This book was released on 1985 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contamination of the environment by cadmium, a relatively rare heavy metal, is increasing and is especially severe in the vicinity of smelters and urban industrialized areas. Very low concentrations of cadmium have been implicated as the cause of numerous deleterious effects to fish and wildlife, especially aquatic life. This report briefly reviews ecological and toxicological aspects of cadmium, with emphasis on natural resources, and provides recommendations for the protection of sensitive species of wildlife and aquatic biota. Subtopics include: enviornmental chemiatry; background concentrations in terrestrial and aquatic organisms; toxic and sublethal effects, including bioaccumulation; and teratogenic, mutagenic, and carcinogenic properties. parag Keywords: contaminants; natural resources; toxicity; fishes; wildlife; cadmium; heavy metals; metabolism; sublethal effects
