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The Reclamation Of Boston Harbor: A Scientist's Perspective, Gordon T. Wallace Jr.

New England Journal of Public Policy

A major effort, costing in the neighborhood of $2 billion, is under way to restore the environmental quality of Boston Harbor. While Boston Harbor is unquestionably one of the most polluted urban estuaries in the world, it is also one of the least understood with respect to the basic physics, chemistry, and biology involved. This information is essential for the purpose of identifying processes that control the transport, effect, and fate of contaminants entering the estuary. Failure to obtain this information may lead to continued inappropriate and unnecessarily expensive solutions to a complex environmental problem. An effective solution will require …

Continued Ddt Persistence In Mississippi River Delta Streams: A Case Study, Stephen A. Sewell, Luther A. Knight Jr.

Journal of the Arkansas Academy of Science

Fish samples representative of several trophic levels were taken from the Wolf and Loosahatchie Rivers of western Tennessee during the early 1980s. Results indicate that DDT, with metabolites DDD and DDE, remains common in fish tissues in these areas and approaches the levels recommended as maxima for human consumption by the U.S. Food and Drug Administration. Samples of top carnivores and forage fishes, particularly the gizzard shad, Dorosoma cepedlanum, commonly exceeded 500 ppb DDE. The results are discussed in light of sediment disturbing activities.

An Overview Of Minnesota's Role In The Federal Nuclear Waste Disposal Process, Gregg Larson

Journal of the Minnesota Academy of Science

No abstract provided.

High-Level Radioactive Waste Disposal Siting: A Political Process, James Pehler

Journal of the Minnesota Academy of Science

No abstract provided.

A Geographer's Response To The 1982 Nuclear Waste Policy Act, Robert Bixby

Journal of the Minnesota Academy of Science

No abstract provided.

The Role Of Citizen Participation In Siting A High-Level Radioactive Waste Disposal Facility, Barbara J. Johnson

Journal of the Minnesota Academy of Science

In order to have a successful radioactive waste management and disposal program, the federal government must build public confidence and trust in the siting process (1). To do this three requirements must be met: 1) the program must be technically feasible; 2) the program must be politically palatable; and 3) the program must be societally acceptable.

Citizen participation is necessary to ensure that a radioactive waste management program is accepted by society and is politically feasible. Citizen involvement indirectly impacts technical feasibility by addressing the ethical and moral implications of nuclear waste disposal, thus helping to establish the parameters of …

The U.S. Department Of Energy's Crystalline Repository Project- A Technical Overview, Edward S. Patera

Journal of the Minnesota Academy of Science

No abstract provided.

Geological Review Of Department Of Energy Proposed Sites In Minnesota For High-Level Radioactive Waste Disposal, Brenda Lorinser

Journal of the Minnesota Academy of Science

The Department of Energy (DOE) proposed three potentially acceptable sites for high-level radioactive waste disposal in Minnesota. These sites were chosen on the basis of the nature of the exposed or near surface crystalline rock bodies they contain. However, the accuracy of the data used by the DOE in choosing these sites is variable, from excellent to poor.

Row Spacing And Cereal Crop Yield, R N. Burch, M. W. Perry

Journal of the Department of Agriculture, Western Australia, Series 4

Cereal growers in western Australia have, traditionally, burned cereal stubbles. Burning stubble residues reduces weed seed populations and fungal pathogens, but its main purpose has been to eliminate straw which might cause blockages od seeding machinery and por see-bed preparation in the time critical seeding operation.

In 982, the Department of Agriculture began a project to determine whether wider spaced rows also depressed cereal yields in Western Australia. This article summarises some of the important results from that work.

Agricultural Progress On The Ord, D A. Mcghie

Journal of the Department of Agriculture, Western Australia, Series 4

This is the first of occasional articles describing the experimental and commercial activity on the Ord River Irrigation Area (ORIA) in Western Australia's Kimberley region.

Against a background of extensive recources of land and water, a sometimes cimatic advantage and a complementary disadvantage of a remote location, agriculture on the Ord has swung from various monocultures to a broadly based and diversified production. In 1986, the value of agricultural production on the Ord will approach values equivalent to those of the cotton era for the first time since the demise of that industry 12 years ago.

Survey Of 1985 Periodical Cicada (Homoptera: Magicicada) Emergence Sites In Washington County, Arkansas, With Reference To Ecological Implications, Douglas A. James, Kathy S. Williams, Kimberly G. Smith

Journal of the Arkansas Academy of Science

Systematic roadside surveys were conducted in June 1985 in Washington County, Arkansas, to locate areas where 13-year periodical cicadas had emerged during May. Although cicadas were found in a variety of upland and bottom land forest habitats, the present cicada distribution reflects the original forest and prairie pattern in the county, even though those boundaries are now largely lost. This suggests a high degree of philopatry whereby emergency areas have remained in the same area for the last 100 years. All present day emergence areas are within the White River drainage, suggesting that it was the main cicada dispersal route …

Grazing And Management Of Saltland Shrubs, C V. Malcolm, J. E. Pol

Journal of the Department of Agriculture, Western Australia, Series 4

areas of bare saltland on farms need not be unproductive etesores. Many Western Australian farmers are now successfully growing salt-tolerant or halophytic shrubs such as bluebush (Maireana brevifolia), saltbushes (Atriplex spp.) and samphires (Halosarcia spp.) on these areas.

Department of agriculture trials and farmers' experience indicate that if saltland is planted with recommended shrubs, it can provide two months' valuable grazing for sheep during autumn and early winter, a time when paddock feed is scarce. Research by the Department has also identified a range of salt-tolerant shrubs suited to the various types of saltland.

Grazing trials to …

Rock Phosphates : Fertilisers For Sandy Soils?, J S. Yeates, D. M. Deeley, G. T.B. Cockerton, M. F. Clarke

Journal of the Department of Agriculture, Western Australia, Series 4

Rock phosphates, from which water solubls phosphorus fertilisers such as superphosphate are manufactured, sometimes appear attractive to farmers because of their relatively low cost. But redearch has shown t6hat on most western australian soils they are not economical fertilisers. However, some deep sandy soils of the State's high rainfall area are exeptions. On these soils, rock phosphates compare favourably with superphosphate for plant growth. But how can these deep sands be identified.

This article describes research to define the soil characteristics necessary for rock phosphates and fertilisers containing rock phosphate, such as Coastal superphosphate, to be effective substitutes for superphosphate.

Penetrating Ionizing Radiation Levels Observed In The Lower Arkansas And White River Valleys Of Arkansas, C. E. Epperson, S. Meiners, D. Swindle

Journal of the Arkansas Academy of Science

Environmental levels of penetrating ionizing radiation were measured in the lower Arkansas and White River valleys of Arkansas. Measurements of environmental gamma and cosmic rays were made using a portable high pressure ionization chamber. The surveyed area encompassed a large coal-fired industrial plant. Observed exposure rates ranged from 5.9 microRoentgens per hour (μR/h) to 13.4 μR/h. The average exposure rate for the region was 8.8 μR/h. This value corresponds to 77 millirem (mrem) or 0.77 milliSieverts (mSv) per year. In comparison, a prior state-wide survey reported an average dose equivalent rate of 78.2 mrem (0.782 mSv) per year in Arkansas.

Interspecific Correlations Of Harvest And Price For Arkansas Furbearers: A Cautionary Note, James H. Peck, Gary A. Heidt, Anita J. Giggleman

Journal of the Arkansas Academy of Science

No abstract provided.

Biological Control Of Parkinsonia, W M. Woods

Journal of the Department of Agriculture, Western Australia, Series 4

One of the most troublesome weeds in northern Australia'a lastoral country is Parkinsonia aculeata, commonly called Parkinsonia, Jerusalem Thorn, Palo Verde or Retama. In 983 Western Australia, ueensland and the Northern Territory started a joint biological control programme against this perst by sending the author overseas to search for its natural predators in southern USA, Mexico and Central America. A few insects show promise and one, a bruchid beetle Mimosetes ulkei, is being tested under Quarantine in Queensland.