Digital Commons Network^™

Edward Miles's Review Of Hanns J. Buchholz's Law Of The Sea Zones In The Pacific Ocean, Edward Miles

Pacific Studies

No abstract provided.

Beaver Lake Water Quality Monitoring Plan, Kenneth W. Carter, George Losak, Kenneth Steele, Joel Cahoon, Dwayne Edwards, Tommy C. Daniel, Richard Meyer, Dee Mitchell

Arkansas Water Resources Center Technical Reports

The Beaver Lake basin is located in Northwest Arkansas, and includes portions of Washington, Madison, Benton, Carroll and Franklin counties. The White River is the :major tributary to Beaver lake, with minor tributaries including the Middle and West Forks of the Whi 1:e River, Richland Creek and War Eagle Creek. The basin encompassing 1,186 square miles of drainage area provides a usable storage capacity of 1.22 :million acre-feet, 300,000 of which are designated as flood control, the remainder is utilized for power generation and water supply. Beaver Lake is the water source for both the Beaver and Carroll County Water …

Draft- Nitrogen Loading And Ambient Chlorophyll-A In Hillsborough Bay (Tampa Bay), Florida: An Eutrophication Management Strategy, J.O. R. Johansson

Reports

The present report examines the past and current relationship between nitrogen loadings and ambient chlorophyll-a eutrophic subdivision of Tampa Bay (Task 1). A management strategy for eutrophication abatement, involving the reduction of present nitrogen loadings to levels which will sustain the desirable chlorophyll-a concentration and support persistent seagrass growth in the near future, is also presented for Hillsborough Bay (Task 3). The urgent need for a comprehensive long-term water quality and loading source monitoring program, specifically for Hillsborough Bay, is also discussed (Task 4).

Modeling Coastal Landscape Dynamics, Robert Costanza, Fred Hal Sklar, Mary L. White

Institute for Sustainable Solutions Publications and Presentations

Examines methods used to predict the way ecological systems respond to human modifications. Coastal marshes; Process-based dynamic spatial ecosystem simulation models; Coastal ecological landscape spatial simulation model; Scenario analysis.

Boreal Toad In Clear Creek County, Colorado, Richard M. Engeman, Robert W. Connell

United States Department of Agriculture Wildlife Services: Staff Publications

Many amphibian populations worldwide have experienced recent population declines (e.g. Barinaga 1990). Included among these are declines for the boreal toad (Bufo boreas boreas) in the central Rocky Mountains (Corn et al. 1989; Stolzenburg 1989). The extent of the population declines is such that boreal toad populations in the Rocky Mountains have been included on the list of species to be reviewed by the U.S. Fish and Wildlife Service for Threatened or Endangered status (Federal Register 1989). We report here an additional population site for the boreal toad in Colorado.

Benzo(A)Pyrene Ingested From Composite Meals : Analysis And Method Development Related To Total Human Exposure, Che-Han Hsu

Theses

Polycyclic aromatic hydrocarbons including benzo[a]pyrene (BaP) have been known for many years to be environmental carcinogen. Moreover, B(a)P has often been used as an indi¬cator for the carcinogenic potency of environmental matter. One of its exposure pathways, ingestion, may possibly be more important than other routes, conventionally studied such as inhalation. The purposes of this thesis are 1) to analyze the B(a)P concentrations in weekly composite and some daily meals obtained in the Total Human Exposure to Environmental Substances (THEES) study, 2) to develop techniques which can measure the levels of B(a)P in foods accurately and effici¬ently, 3) to compare …

Quantitative Determination Of Formaldehyde In Ambient Air, Wen-Shao Chou

Theses

Formaldehyde has been shown in the laboratory to play a critical role in the chemistry of polluted air. The method which we discuss in this paper was evaluated under practical field conditions in the Northern New Jersey Staten Island Urban Air Toxics Project. Formaldehyde in ambient air is concentrated and derived by passing a known quantity of air through a silica column impregnated with 2,4-dinitrophenylhydrazine (DNPH). The silica is eluted with acetonitrile and the concentration of formaldehyde is determined by High Performance Liquid Chromatograph (HPLC) with UV detection. A description of procedural details for coating silica cartridges with 2,4-DNPH acidified …

Degradation Of Refractory Organic Pollutants In Tar, Water And Soil Matrices By Ozone Or Hydrogen Peroxide With Ultraviolet Light, Liang-Jiun Uang

Theses

The objective of this research is to develop a method to degrade refractory Tar materials, higher molecular weight 3-5 ring Poly Aromatic Hydrocarbons (PAH's) or degrading these highly refractory PAH structures so that they are amenable to further treatment by biological or chemical methods. The process utilized to achieve this is to treat contaminated soils or tar materials with hydrogen peroxide or ozone plus ultraviolet light. Analysis of 27 specific PAH's was done by gas chromatograph (Flame Ionization Detection) for the reactants and products. The contaminated soil showed significantly lower levels of these PAH's after treatment.

The Kinetics And Mechanism Of Photo-Oxidation Of Acrylonitrile And Acetonitrile With Hydrogen Peroxide And Ozone In Wastewater, Jung-Yuan Yeh

Theses

The study presents three types of Advanced Oxidation Processes , Ozone with UV, Ozone with Hydrogen Peroxide in the presence of UV, Various Hydrogen peroxide dosages and PH levels in the presence of UV.

A reaction kinetic model was proposed. The reaction rate constants and mass transfer coefficients are determined by a series of experiments and the use of the Rosenbrock Hillclimb Optimization Algorithm in conjuction with the Fourth ¬Order Runge - Kutta method on a digital computer.

Experimental results indicated that the Hydrogen peroxide with UV at low PH level has been proven more effective for the treatment of …

A Resource Inventory And Impact Analysis Of Great Bog And The Horse Point Delta/Esker System, Problems In Environmental Science Course (Biology 493), Colby College, Biologists Organized For Ecosystem Assessment, Colby College

Colby College Watershed Study: Other Area Studies

In May of 1990, Tilcon-Maine, Inc. submitted an application to mine gravel on the east side of Horse Point Road on Horse Point in the Town of Belgrade. The project site covers 46 acres and the proposed excavation covers 16 acres. An estimated 740,000 cubic yards of material will be removed over a period of six or seven years (Pfister, pers. comm.). According to Tilcon (Timson et al., 1990) the maximum depth of the pit will be 78 feet and the bottom of the pit will be a minimum of 6 feet above the water table. At the present time …

Potential Effects Of Climate Change On Tree Survival And Forest Pests In The Great Plains, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

Potential Effects Of Climate Change On Tree Survival And Forest Pests In The Great Plains, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

Shelterbelts: A Buffer To Climate On The Plains, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

Management Of Microclimate With Windbreaks, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

Components Of Surface Energy Balance In A Temperate Grassland Ecosystem, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

Carbon Dioxide Exchange In A Temperate Grassland Ecosystem, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

An Outline Of China's Natural Resources Law, Gu Xueting, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

8 p. ; 28 cm

Uncertainty, Politics, And Outer Continental Shelf Development, Robert B. Wiygul, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

15 p. ; 28 cm

Minnesota's Boundary Waters Wilderness: Time For A New Name And A New Philosophy, T. Jeffery Evans

Journal of the Minnesota Academy of Science

No abstract provided.

Sustainable Agriculture-Benefits For Minnesota, Ron Kroese, Craig Cramer

Journal of the Minnesota Academy of Science

No abstract provided.

The New Materialism: Managing Minnesota's Materials As If Matter Mattered, David Morris

Journal of the Minnesota Academy of Science

No abstract provided.

The St. Croix Field Research Station: A New Facility And Program Of The Science Museum Of Minnesota, Ronald W. Lawrenz

Journal of the Minnesota Academy of Science

No abstract provided.

Report On The Conference Of Post-Secondary Environmental Educators, Caryl Edward Buchwald, Shirley M. Dougherty

Journal of the Minnesota Academy of Science

No abstract provided.

Review Of Report Of The Arl Serials Prices Project, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

If you feel, after your latest cruise through your research library, that you were adrift in a very expensive sea of paper, you are certainly not alone. As a researcher at a research university, it is very easy to use the resources of your library and to be confronted with the funding problems of that library only as those problems affect your particular area of interest. In recent years most researchers at universities have been told that subscriptions to journals will have to be cut in their area and that less of the library materials budget will be available to …

Using Water Naturally, Holmes Rolston, Iii, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

[ii], 26 p. ; 28 cm

Wetlands Protection And Water Rights: A Report To The U.S. Environmental Protection Agency, Region Viii, Lawrence J. Macdonnell, John Nelson, John Bloomquist, University Of Colorado Boulder. Natural Resources Law Center, United States. Environmental Protection Agency. Region Viii

Books, Reports, and Studies

i, 50 p. ; 28 cm

Earth Day 2020: Will We Have A Healthier Environment?, George T. Frampton, Jr., University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

10 leaves ; 28 cm

Market Strategies For The Protection Of Western Instream Flows And Wetlands, Robert Wigington, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

18 p. ; 28 cm

Values And Western Water: A History Of The Dominant Ideas, Charles F. Wilkinson, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

10 p. ; 28 cm

The Changing Scene In The American West: Water Policy Implications, Theodore M. Schad, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

11 p. ; 28 cm