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Articles 19771 - 19800 of 25089
Full-Text Articles in Entire DC Network
Field-Scale Remediation Of A Metolachlor-Contaminated Spill Site Using Zerovalent Iron, Steven Comfort, Patrick J. Shea, Thomas A. Machacek, H. Gaber, B.-T. Oh
Field-Scale Remediation Of A Metolachlor-Contaminated Spill Site Using Zerovalent Iron, Steven Comfort, Patrick J. Shea, Thomas A. Machacek, H. Gaber, B.-T. Oh
School of Natural Resources: Faculty Publications
Pesticide spills are common occurrences at agricultural cooperatives and farmsteads. When inadvertent spills occur, chemicals normally beneficial can become point sources of ground and surface water contamination. We report results from a field trial where approximately 765 m3 of soil from a metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide] spill site was treated with zerovalent iron (Fe0). Preliminary laboratory experiments confirmed metolachlor dechlorination by Fe0 in aqueous solution and that this process could be accelerated by adding appropriate proportions of Al2(SO4)3 or acetic acid (CH3COOH). The field project was …
Escherichia Coli O157:H7 In Free-Ranging Deer In Nebraska, David G. Renter, Jan M. Sargeant, Scott E. Hygnstrom, Jeff D. Hoffmann, Jerry R. Gillespie
Escherichia Coli O157:H7 In Free-Ranging Deer In Nebraska, David G. Renter, Jan M. Sargeant, Scott E. Hygnstrom, Jeff D. Hoffmann, Jerry R. Gillespie
School of Natural Resources: Faculty Publications
In order to determine the prevalence and distribution of the human pathogen, Escherichia coli O157:H7, in free-ranging deer, hunters were asked to collect and submit fecal samples from deer harvested during a regular firearm season (14–22 November 1998). Prior to the season, 47% of the hunters with permits in the southeastern Nebraska (USA) study area indicated a willingness to participate in the study. Approximately 25% of successful hunters in the area submitted deer fecal samples. Escherichia coli O157:H7 was cultured from four (0.25%) of 1,608 total samples submitted. All of the fecal samples that were properly identified (1,426) and all …
A Site Specific Impact Study: Valley Fill Construction Impacts On Water Chemistry And Benthic Macroinvertebrate Assemblages, Terry Morton Tomasek
A Site Specific Impact Study: Valley Fill Construction Impacts On Water Chemistry And Benthic Macroinvertebrate Assemblages, Terry Morton Tomasek
Theses, Dissertations and Capstones
Downstream impacts of contour surface mining and valley fill construction were evaluated utilizing both water chemistry and EPA approved Rapid Bioassessment Protocol III. Wiley Branch was sampled in February of 1999 before mining perturbation. Five downstream stations were established with benthic macroinvertebrates and water samples collected seasonally for a period of sixteen months. Water chemistry parameters, pH, total aluminum, iron, and manganese, total suspended solids, total dissolved solids, sulfates, alkalinity, acidity and specific conductivity fluctuated but generally remained within acceptable governmental limits. Initially, benthic macroinvertebrate communities were well balanced within the stream. There was a high abundance of EPT individuals …
Report Of The State Nuclear Safety Advisor Submitted To The Governor And 120th Legislature As Of January 15, 2001, Paula M. Craighead
Report Of The State Nuclear Safety Advisor Submitted To The Governor And 120th Legislature As Of January 15, 2001, Paula M. Craighead
Maine Collection
Report of the State Nuclear Safety Advisor submitted to the Governor and 120th Legislature As of January 15, 2001
Paula M. Craighead, State Nuclear Safety Advisor, Executive Department, Maine State Planning Office, Augusta, Maine, 2001.
Contents: Introduction and Executive Summary / I. Maine Yankee Decommissioning / II. Portsmouth Naval Shipyard (PNS) / III. Low-Level Radioactive Waste (LLRW) / IV. High Level Radioactive Waste / V. Transport Routes and Safety Response / VI. Shipments / VII. Status of Federal and State Legal and Administrative Proceedings / References and Resources / Glossary
Environmental Fairs: An Examination Of The 1999 Inland Empire Environmental Expo, Bruce Vincent Broxson
Environmental Fairs: An Examination Of The 1999 Inland Empire Environmental Expo, Bruce Vincent Broxson
Theses Digitization Project
This project articulates the foundational purpose for environmental fairs and how they encourage an environmentally literate and responsible citizenry.
Working For The Environment: Pathways To Environmental Careers, Carol Aline Devault
Working For The Environment: Pathways To Environmental Careers, Carol Aline Devault
Theses Digitization Project
Fifteen professionals in a variety of environmental occupations in the United States were interviewed in a structured, open-ended format. Job profiles were developed from the interviews. The philosophy of these environmental professionals is expressed in their own words and offers insights into influences upon career choice, professional training and personal fulfillment. In addition, environmental related career activity guides were developed to help students and their parents and teachers gain an awareness of the occupations available in this field.
The Obispeno Chumash Indians: San Luis Obispo County's First Environmentalists, Sharon L. Marks
The Obispeno Chumash Indians: San Luis Obispo County's First Environmentalists, Sharon L. Marks
Theses Digitization Project
The primary focus of this project is with the interaction between nature and people. How did the Obispeno Chumash affect their surroundings and what was the outcome? Did changes occur in the environment when other people took over the care of the land? Over the last 250 years, the Obispeno Chumash land has evolved from an ecologically green dominion under their stewardship to the present day where the area is noted for its mission, recreational value, wealth of opportunity, and a nuclear power plant located between Morro Bay and Point Buchon along the ocean.
Teaching And Learning In The School Garden, Elizabeth Lynn Waddell
Teaching And Learning In The School Garden, Elizabeth Lynn Waddell
Theses Digitization Project
This project was created to encourage educators to establish school site gardens. Gardens provide the opportunity to introduce environmental topics, and can become hands-on learning centers for subjects across the course of study.
Plant Materials For Wildlife, Donald Surrency, Charles M. Owsley, United States Department Of Agriculture, Natural Resources Conservation Service
Plant Materials For Wildlife, Donald Surrency, Charles M. Owsley, United States Department Of Agriculture, Natural Resources Conservation Service
All U.S. Government Documents (Utah Regional Depository)
The Wildlife Habitat Incentives Program (WHIP) was created by the 1996 Farm Bill, the Federal Agriculture Improvement and Reform Act (FAIRA). WHIP will provide technical and financial assistance to landowners to apply and maintain wildlife conservation practices. Enhancement, creation, or restoration of habitats for upland and wetland wildlife species, threatened and endangered species, fish and other types of wildlife are the program's primary purposes.
The NRCS Plant Materials Centers and Plant Materials Specialists in the Southeast Region have prepared a description of plant materials that should be considered for WHIP. The plant materials technology includes information on native and introduced …
Monitoring Rangelands: Interpreting What You See, G. Allen Rasmussen, Michael P. O'Neill, Lisa Schmidt
Monitoring Rangelands: Interpreting What You See, G. Allen Rasmussen, Michael P. O'Neill, Lisa Schmidt
All Archived Publications
No abstract provided.
Repeat Photography Monitoring Made Easy, G. Allen Rasmussen, Kathy Voth
Repeat Photography Monitoring Made Easy, G. Allen Rasmussen, Kathy Voth
All Archived Publications
No abstract provided.
Earth Day, Today And Every Day, Augustana College - Sioux Falls
Earth Day, Today And Every Day, Augustana College - Sioux Falls
Conservation/Energy Alternatives
Bibliography and photographs of a display of government documents from Augustana College, South Dakota.
Blackwood Catchment : Katanning Zone (Zone 6) : Catchment Appraisal 2001, Henry Brockman, Blackwood Rapid Catchment Appraisal Team (Wa)
Blackwood Catchment : Katanning Zone (Zone 6) : Catchment Appraisal 2001, Henry Brockman, Blackwood Rapid Catchment Appraisal Team (Wa)
Resource management technical reports
The aim of this report is to document the extent of salinity and land degradation within the Katanning zone, Western Australia, and management options aimed at reducing recharge and land degradation.
Integrating Environmental Education Into The Curriculum Through Environmental Community Service Learning, Jay Allen Westover
Integrating Environmental Education Into The Curriculum Through Environmental Community Service Learning, Jay Allen Westover
Theses Digitization Project
The goal of environmental education is to increase individuals' ecological knowledge, awareness of associated environmental problems, and motivation to evaluate and implement solutions. This project combined the concepts of environmental education with community service learning to create a new method of curriculum integration: environmental community service learning. The California state standards for environmental education, service learning, language arts, mathematics, science, and social studies were integrated into four thematic units using the teaching methodologies of cooperative learning, authentic assessment, and reflection. The integrated, thematic units of this project could be used by educators in a multi-disciplinary, team teaching scenario on in …
Environmental Assessment For The Seminoe Road Coalbed Methane Pilot Project, Carbon County, Wyoming, United States Department Of The Interior, Bureau Of Land Management
Environmental Assessment For The Seminoe Road Coalbed Methane Pilot Project, Carbon County, Wyoming, United States Department Of The Interior, Bureau Of Land Management
Environmental Assessments (WY)
Analysis of the environmental consequences has led to the determination that this proposed project, with the appropriate mitigating measures, will not have a significant effect on the human environment. Therefore, an Environmental Impact Statement will not be required. Pending the results of a public review of this document, the Bureau of Land Management (BLM) will prepare a formal Decision Record.
Decision Record And Finding Of No Significant Impact For The Atlantic Rim Coalbed Methane Project, Sun Dog Pod, Carbon County, Wyoming, United States Department Of The Interior, Bureau Of Land Management
Decision Record And Finding Of No Significant Impact For The Atlantic Rim Coalbed Methane Project, Sun Dog Pod, Carbon County, Wyoming, United States Department Of The Interior, Bureau Of Land Management
Record of Decisions (WY)
Petroleum Development Corporation (PEDCO) of Gillette, Wyoming, notified the Bureau of Land Management (BLM), Rawlins Field Office, that the company proposes to explore and potentially develop coalbed methane (CBM) wells in the Sun Dog Pod Project Area (SDPA) of the Atlantic Rim Project Area (ARPA) in southcentral Wyoming. The Sun Dog proposal is part of the exploration drilling activities that will be considered for the acquisition of data necessary to prepare the Environmental Impact Statement (EIS) within the ARPA. Coalbed methane development is very new in the Green River Basin. Public concern has been brought forth regarding the unknowns about …
Effects Of Collection, Transport, And Redeployment Methods On Natural Mortality Of Rangia Cuneata (Mactridae) Used In Biomonitoring Studies, Eugene G. Maurakis, David V. Grimes, William C. Gretes
Effects Of Collection, Transport, And Redeployment Methods On Natural Mortality Of Rangia Cuneata (Mactridae) Used In Biomonitoring Studies, Eugene G. Maurakis, David V. Grimes, William C. Gretes
Virginia Journal of Science
Sporadic, high mortality in test populations of wedge clams (Rangia cuneata) has limited the potential for using this otherwise desirable test organism in biomonitoring studies. To determine whether high mortality was due to ontogenic or experimental variables, a two-phased study was conducted. In phase I, mortality of collected and re-deployed wedge clams, subjected to varying transport conditions, was determined at 7, 14, 21 and 60 days re-deployment. The use of three transport times (1, 2, 3 hr.), two vehicle conditions (open, closed) and three transport treatments (open, closed, iced containers) yielded 18 test groups. Individual test group mortalities …
Belle Ayr 2000 Federal Coal Lease Application Environmental Assessment (Wyw151133), United States Department Of The Interior, Bureau Of Land Management
Belle Ayr 2000 Federal Coal Lease Application Environmental Assessment (Wyw151133), United States Department Of The Interior, Bureau Of Land Management
Environmental Assessments (WY)
This final EA is published in abbreviated format. Reviewers will need the Draft Environmental Assessment for the Belle Ayr 2000 Coal Lease Application, BLM, December, 2000, for review of the complete EA.
Zebra Mussel (Dreissena Polymorpha) Selective Filtration Promoted Toxic Microcystis Blooms In Saginaw Bay (Lake Huron) And Lake Erie, Henry A. Vanderploeg, James R. Liebig, Wayne W. Carmichael, Megan A. Agy, Thomas H. Johengen, Gary L. Fahnenstiel, Thomas F. Nalepa
Zebra Mussel (Dreissena Polymorpha) Selective Filtration Promoted Toxic Microcystis Blooms In Saginaw Bay (Lake Huron) And Lake Erie, Henry A. Vanderploeg, James R. Liebig, Wayne W. Carmichael, Megan A. Agy, Thomas H. Johengen, Gary L. Fahnenstiel, Thomas F. Nalepa
United States Department of Commerce: Staff Publications
Microcystis aeruginosa, a planktonic colonial cyanobacterium, was not abundant in the 2-year period before zebra mussel (Dreissena polymorpha) establishment in Saginaw Bay (Lake Huron) but became abundant in three of five summers subsequent of mussel establishment. Using novel methods, we determined clearance, capture, and assimilation rates for zebra mussels feeding on natural and laboratory M. aeruginosa strains offered alone or in combination with other algae. Results were consistent with the hypothesis that zebra mussels promoted blooms of toxic M. aeruginosa in Saginaw Bay, western Lake Erie, and other lakes through selective rejection in pseudofeces. Mussels exhibited high …
Tws Wildlife Damage Management Working Group Newsletter: Spring 2001 – Volume 8(1) Elections Issue
Tws Wildlife Damage Management Working Group Newsletter: Spring 2001 – Volume 8(1) Elections Issue
TWS Wildlife Damage Management Working Group Newsletter
From The Chair: 2000-2001 Wildlife Damage Management Working Group Officers:; Candidates For The Working Group Officers – May 2001; Wildlife Damage Management Working Group Ballot – May 2001; Proceedings Available: Predator Control; A Quest For Older Wildlife Control Workshop Proceedings; Wdamage: A Resource For Wildlife Damage Managers; Tws Reno/Tahoe 2001 8th Annual Conference Of The Wildlife Society Reno/Tahoe, Nevada , September 25–29, 2001 Preliminary Program; Application For Membership / The Wildlife Society
Tws Wildlife Damage Management Working Group Newsletter: Late Summer 2001 – Volume 8(2)
Tws Wildlife Damage Management Working Group Newsletter: Late Summer 2001 – Volume 8(2)
TWS Wildlife Damage Management Working Group Newsletter
Forward -Bob Timm; New Jersey Polices Chief Prevents 15mm Launcher Use; Close Encounters Of Predator Kind Rising; Fecal Canada Goose Study Results Available; Special Prepublication Offer On New Human Dimensions Book; Tws Reno/Tahoe 2001 8th Annual Conference Of The Wildlife Society Reno/Tahoe, Nevada, September 25–29, 2001 Preliminary Program; Application For Membership / The Wildlife Society
The Probe, Issue 214 – January/February 2001
The Probe, Issue 214 – January/February 2001
The Probe: Newsletter of the National Animal Damage Control Association
Trap-Shy Feral Cats in Public Settings -- Susan Darling Greene
Why Worry About Human-Wildlife Conflicts? -- Mike Conover, President, NADCA
Imunoconctraception For Deer Control Shown to Be Ineffective
The USDA announced a settlement that would extend protection under the Animal Welfare Act to rats, mice, and birds used in laboratory research.
The Internet Center for Wildlife Damage Management: ttp://wildlifedamage.unl.edu -- Dallas Virchow, Proj. Coord., Distance Ed., Wildlife Damage Management,University of Nebraska
U.S. Environmental Protection Agency (EPA) Region 5 has recently ordered New Tech International (Warren, MI) to stop selling the unregistered pesticide Kritter Killer.
Since all snakes lack external ears, …
Management Plan
National Invasive Species Council
Farmers, ranchers, scientists, State officials, and many others have urged the Federal Government to consider invasive species issues a priority and to develop a coordinated national effort to address the problem. In response, the President issued Executive Order 13112 on Invasive Species (Order) in February 1999. The Order established the National Invasive Species Council (Council), co-chaired by the Secretaries of Agriculture, Commerce, and the Interior; and includes the Secretaries of State, Treasury, Defense, and Transportation, and the Administrator of the Environmental Protection Agency. The Order directs the Council to form a non-Federal Invasive Species Advisory Committee (ISAC) to advise the …
Water Resources Year In Review - Winter 2001, Annis Water Resource Institute
Water Resources Year In Review - Winter 2001, Annis Water Resource Institute
AWRI Reviews
No abstract provided.
Effects Of Epilimnetic Versus Metalimnetic Fertilization On The Phytoplankton And Periphyton Of A Mountain Lake With A Deep Chlorophyll Maxima, Wayne A. Wurtsbaugh, H. P. Gross, Phaedra E. Budy, Chris Luecke
Effects Of Epilimnetic Versus Metalimnetic Fertilization On The Phytoplankton And Periphyton Of A Mountain Lake With A Deep Chlorophyll Maxima, Wayne A. Wurtsbaugh, H. P. Gross, Phaedra E. Budy, Chris Luecke
Watershed Sciences Faculty Publications
Nutrients can load directly to either the epilimnion or metalimnion of lakes via either differential inflow depths of tributaries or intentional fertilization of discrete strata. We evaluated the differential effects of epilimnetic versus metalimnetic nutrient loading using 17-m-deep mesocosms that extended into the deep chlorophyll layer of oligotrophic Pettit Lake in the Sawtooth Mountains of Idaho. Addition of nitrogen plus phosphorus stimulated primary production nearly identically (2.4- to 4-fold on different dates) in both treatments, with the production peaks occurring in the strata where nutrients were added. The metalimnetic fertilization, however, resulted in equal or greater stimulation of chlorophyll a …
Avian Use Of Various Bait Mixtures Offered In Harvested Cornfields During Spring Migration In South Dakota, George M. Linz, H. Jeffrey Homan, Ryan L. Wimberly
Avian Use Of Various Bait Mixtures Offered In Harvested Cornfields During Spring Migration In South Dakota, George M. Linz, H. Jeffrey Homan, Ryan L. Wimberly
United States Department of Agriculture Wildlife Services: Staff Publications
The avicide, DRC-1339, is used to cull populations of spring-migrating blackbirds in eastern South Dakota to reduce damage to ripening sunflower in late summer. We investigated non-target bird hazards associated with using various grain mixtures to attract blackbirds (Icteridae), especially red-winged blackbirds (Agelaius phoeniceus), to avicide-treated bait broadcast in harvested cornfields. During spring 1997 and 1998, we recorded the species and numbers of birds attracted to 0.2-ha plots baited with cracked corn and brown rice, fine-chipped sunflower meats and brown rice (1997 only), and unsupplemented brown rice. Unbaited plots were used as reference sites. In 1997 and 1998, …
Local And Systemic Controls On Fish And Fish Habitat In South Dakota Rivers And Streams: Implications For Management, Craig L. Milewski
Local And Systemic Controls On Fish And Fish Habitat In South Dakota Rivers And Streams: Implications For Management, Craig L. Milewski
Electronic Theses and Dissertations
Assessments of the health of rivers and streams in prairie environments would improve if the role of systemic patterns and processes among geologic-climatic settings in controlling physical habitat and fish communities were better defined. My research approach was based on a premise that assessments of the health of rivers and streams in prairie environments would benefit from studies that 1) examine the moderating effects of systemic patterns and processes by comparing physical habitat continua and fish communities among geologic-climatic settings, 2) determine the relative influence of locally interacting variables (e .g., channel shape and riparian vegetation) and systemic processes in …
Population Characteristics And Sampling Methods Of Catfish For The James And Big Sioux Rivers, John E. Aterburn
Population Characteristics And Sampling Methods Of Catfish For The James And Big Sioux Rivers, John E. Aterburn
Electronic Theses and Dissertations
Concerns about the sustainability of catfish populations that produce large fish have increased because of abundant media images of large catfish and improvements in specialized fishing equipment. This study will help biologists address these concerns by providing important information about the channel catfish lctalurus punctarus and flathead catfish Pylodictis olivaris populations of the James and Big Sioux rivers and by assessing the effectiveness of various gears used to sample catfish. I compared the number of channel catfish and flathead catfish caught on trotlines by riverine habitat type, hook type, and bait type along with electrofishing and different hoop net combinations. …
Investigations On The Environmental Significance And The Bioavailability Of Heavy Metals In Soils, Inaam Ali Abdallah Saad
Investigations On The Environmental Significance And The Bioavailability Of Heavy Metals In Soils, Inaam Ali Abdallah Saad
Student Works (2000-2009)
Heavy metals contaminated soils pose a continuing and increasing threat to human health, the increased inputs of heavy metals from the widespread disposal of industrial wastes have created an Increased attention on the issue of their fate. bioavailability and environmental significance. These Investigations were carried mainly to study the solid - solution phase distribution, chemical speciation and plant uptake of cadmium (Cd), lead (Pb), nickel (Ni) and zinc (Zn) in three contrasting soils amended with Cd, Pb. Ni and Zn nitrate sails at rates of 5-40 mmol/kg for incubation time varied between 3-15 month. Although heavy metal cations adsorbed to …
Studies On The Pollution Parameters Of Leachate From Ampang Landfill, Syed Fatimah Kamal Batcha
Studies On The Pollution Parameters Of Leachate From Ampang Landfill, Syed Fatimah Kamal Batcha
Student Works (2000-2009)
ln the first part of the study, the characteristics of the leachate from Ampang landfill, collected before and after the landfill closure was analysed. In general, the characteristics of the Ampang landfill leachate was found to be typical of other landfill leachates in the Klang Valley. The analysis reveals that the Ampang landfill leachate during its active life had high contents of sodium, potassium, chloride and ferum, with concentrations of 687 ppm, 785 ppm, 2500 ppm and 45 ppm respectively. Generally and as expected, the leachate collected before the landfiII closure was found to be more concentrated and contains more …