Download or read book Ecological Soil Screening Level for Iron electronic Resource written by United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response and published by . This book was released on 2003 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Soil Screening Guidance written by and published by . This book was released on 1996 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Attachment 1 2 Guidance for Developing Ecological Soil Screening Levels Eco SSLs written by and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Soil Screening Level for Lead electronic Resource written by United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response and published by . This book was released on 2005 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Soil Screening Level for Silver electronic Resource written by United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response and published by . This book was released on 2006 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Attachment 1 1 Guidance for Developing Ecological Soil Screening Levels Eco SSLs written by and published by . This book was released on 2003 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidance for Developing Ecological Soil Screening Levels Eco SSLs written by and published by . This book was released on 2007 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidance for Developing Ecological Soil Screening Levels written by and published by . This book was released on 2005 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Soil Screening Level for Antimony written by and published by . This book was released on 2005 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Draft Soil Screening Guidance Issues Document written by and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitored Natural Attenuation of Inorganic Contaminants in Ground Water written by and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: V.3 ... consists of individual chapters that describe 1) the conceptual background for radionuclides, including tritium, radon, strontium, technetium, uranium, iodine, radium, thorium, cesium, plutonium-americium and 2) data requirements to be met during site characterization.

Download or read book Release of Guidance for Developing Ecological Soil Screening Levels Eco SSLs and Eco SSLs for Nine Contaminants written by Marianne Lamont Horinko and published by . This book was released on 2003 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Soil Screening Level for Vanadium electronic Resource written by United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response and published by . This book was released on 2005 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Soil Screening Level for Barium electronic Resource written by United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response and published by . This book was released on 2005 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Attachment 4 2 Ecological Soil Screening Levels Eco SSLs Standard Operating Procedure SOP 3 written by TN & Associates, Inc and published by . This book was released on 2003 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: