7 research outputs found
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Master Environmental Plan: Fort Wingate Depot Activity, Gallup, New Mexico
The master environmental plan is based on an environmental assessment of the areas requiring environmental evaluation (AREEs) at Fort Wingate Depot Activity near Gallup, New Mexico. The Fort Wingate Depot Activity is slated for closure under the Base Closure and Realignment Act, Public Law 100--526. The MEP assesses the current status, describes additional data requirements, recommends actions for the sites, and establishes a priority order for actions. The plan was developed so that actions comply with hazardous waste and water quality regulations of the State of New Mexico and applicable federal regulations. It contains a brief history of the site, relevant geological and hydrological information, and a description of the current status for each AREE along with a discussion of the available site-specific data that pertain to existing or potential contamination and the impact on the environment. 35 refs., 27 figs., 23 tabs
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Master environmental plan for Fort Devens, Massachusetts
Argonne National Laboratory has prepared a master environmental plan (MEP) for Fort Devens, Massachusetts, for the US Army Toxic and Hazardous Materials Agency. The MEP is an assessment based on environmental laws and regulations of both the federal government and the Commonwealth of Massachusetts. The MEP assess the physical and environmental status of 58 potential hazardous waste sites, including 54 study areas (SAs) that pose a potential for releasing contamination into the environment and 4 areas of concern (AOCs) that are known to have substantial contamination. For each SA or AOC, this MEP describes the known history and environment, identifies additional data needs, and proposes possible response actions. Most recommended response actions consist of environmental sampling and monitoring and other characterization studies. 74 refs., 63 figs., 50 tabs
Triterpenoid saponins from the stem barks of Chytranthus klaineanus Radlk. ex Engl
In our continuing studies on saponins from Cameroonian medicinal plants, phytochemical investigation of Chytranthus klaineanus stem barks led to the isolation of three new oleanane-type saponins, named Klaineanosides A-C(1-3). Their structures were established by extensive analysis of their spectral data, mainly 1D(H-1, C-13 NMR, and DEPT) and 2D (COSY, HSQC, NOESY, HSQC-TOCSY, and HMBC) NMR experiments, and mass spectrometry as 3-O-beta-D-glucopyranosyl-(1 -> 3)-beta-D-xylopyranosyl-(1 -> 4)[-beta-D-xylopyranosyl(1 -> 3)-beta-D-xylopyranosyl(1 -> 3)-alpha-L-rhamnopyranosyl-(1 -> 2)]-alpha-L-arabinopyranosylhederagenin(1), 3-O-beta-D-glucopyr-anosyl-(1 -> 3)-beta-D-xylopyranosyl-(1 -> 4)[ beta-D-xylopyranosyl(1 -> 3)-alpha-L-rhamnopyranosyl-(1 -> 2)]-alpha-L-arabinopyr-anosylhederagenin(2), and 3-O-beta-D-xylopyranosyl(1 -> 4)-beta-D-glucopyranosyl-(1 -> 3)-alpha-L-rhamnopyranosyl-(1 -> 2)-alpha-L-arabinopyranosylhederagenin(3). These triterpene saponins 1-3 have hederagenin as aglycone with a-(3)Rha-(2)Ara-(3)hederagenin oligosaccharidic sequence usually found in Sapindaceae family
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Remedial investigation report for J-Field, Aberdeen Proving Ground, Maryland. Volume 1: Remedial investigation results
This report presents the results of the remedial investigation (RI) conducted at J-Field in the Edgewood Area of Aberdeen Proving Ground (APG), a U.S. Army installation located in Harford County, Maryland. Since 1917, activities in the Edgewood Area have included the development, manufacture, and testing of chemical agents and munitions and the subsequent destruction of these materials at J-Field by open burning and open detonation. These activities have raised concerns about environmental contamination at J-Field. This RI was conducted by the Environmental Conservation and Restoration Division, Directorate of Safety, Health and Environmental Division of APG, pursuant to requirements outlined under the Comprehensive Environmental Response, Compensation, and Liability Act, as amended (CERCLA). The RI was accomplished according to the procedures developed by the U.S. Environmental Protection Agency (EPA 1988). The RI provides a comprehensive evaluation of the site conditions, nature of contaminants present, extent of contamination, potential release mechanisms and migration pathways, affected populations, and risks to human health and the environment. This information will be used as the basis for the design and implementation of remedial actions to be performed during the remedial action phase, which will follow the feasibility study (FS) for J-Field
Congo Basin forest cover change estimate for 1990, 2000 and 2005 by Landsat interpretation using an automated object-based processing chain
Observatory of Central African Forests: National and Regional Estimate of Forest Cover and Forest Cover Change for 1990, 2000 and 2005 / La Cartographie Forestière et le Changement d'Occupation et Utilisation du Sol: Description de la Méthodologie
Tropical forests, although covering less than 10% of the total land surface of the Earth, represent the largest terrestrial reservoir of biological diversity1, changes in these biome have major impacts on climate change and biodiversity loss. The Congo Basin hosts the second-largest contiguous block of tropical forest after the Amazon2. To assess these impacts, dynamic forest cover change is more than ever a challenge. Today, optical earth observations methods are fully operational for forest type definitions, mapping and forest cover changes over local scale. National and international decision makers need reliable, objective, verifiable according to international standards and up-to-date information to define and monitor forest policies and to report to international conventions. Only satellite images can provide enough information on processes such as deforestation at the scale of Congo Basin. In this context the Observatory of Forests of Central Africa (OFAC) and the Forest Resources Assessment (FRA-2010) led by FAO, invited each country to work together to estimate forest cover changes for years 1990-2000-2005 (and later 2010).JRC.DDG.H.3-Global environement monitorin