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Environmental Health and Protection Commons™
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Articles 781 - 801 of 801
Full-Text Articles in Environmental Health and Protection
A Review Of The Limnology Of And Water Quality Standards For Lake Mead, Charles R. Goldman
A Review Of The Limnology Of And Water Quality Standards For Lake Mead, Charles R. Goldman
Publications (WR)
1. The waters of Las Vegas Bay, a heavily utilized recreational resource, receive discharges from a variety of municipal and industrial waste sources. The U.S. Environmental Protection Agency has determined, on the basis of numerous studies, that the present water quality violates state and federal standards and constitutes a public nuisance. Consultants have advised the Sewage and Wastewater Advisory Committee that rapid abatement of the alleged pollution conditions can be achieved by an advanced wastewater treatment (AWT) plant.
2. The major problems in Las Vegas Bay are an objectionable water color, excessive turbidity, noxious odors, and oxygen depletion in certain …
Report On Wastewater Disposal To Board Of County Commissioners, Clark County Nevada, Clair N. Sawyer
Report On Wastewater Disposal To Board Of County Commissioners, Clark County Nevada, Clair N. Sawyer
Publications (WR)
This report is concerned with the management of waste-waters and subsurface drainage from the City of Las Vegas and its environs and the BMI complex, all in Clark County, Nevada. The prime objective is to recommend a plan of action which will utilize the natural resources of the area in the least costly manner and still protect Lake Mead for recreational purposes and use as a public water supply, At this writing, conditions in the upper Las Vegas arm of Boulder Basin are quite unsatisfactory for some recreational purposes due to the extensive blooms of algae which develop. Experience at …
Ua12/2/19 Earth Week, Energy For Student Awareness
Ua12/2/19 Earth Week, Energy For Student Awareness
WKU Archives Records
Newspaper created by the Energy for Student Awareness group regarding Earth Week and environmental issues.
Seasonal And Spatial Variation In Primary Productivity In Boulder Basin, Lake Mead, Clark County, Nevada, Isamu Aoki
Seasonal And Spatial Variation In Primary Productivity In Boulder Basin, Lake Mead, Clark County, Nevada, Isamu Aoki
Publications (WR)
The 14C light and dark bottle technique for measurement of primary production was utilized as a means of assessing the amount of inorganic carbon being converted Into organic form by the photosynthesis of phytoplankton populations In the Boulder Basin of Lake Mead.
Spatial and time series changes of productivity levels observed at eight sampling locations within Boulder Basin Indicate that the Influence of treated municipal arts' industrial effluent flowing into Les Vegas Bay is contributing high levels of available nutrients at Las Vegas Wash Inlet to cause productivity to approximate those levels associated with polluted waters.
Productivity levels at …
Some Concepts In Rangeland Management, R B. Hacker
Some Concepts In Rangeland Management, R B. Hacker
Journal of the Department of Agriculture, Western Australia, Series 4
The arid and semi-arid zones of Australia occupy about 75 per cent of the land mass. The pastoral industries are located within these zones and, although productivity per unit area is low, the region nevertheless constitutes one of the nation's valuable renewable resources.
If properly managed, such a resource may be maintained as a productive asset indefinitely.
Grey Kangaroo Management Programme, Department Of Agriculture, Western Australia
Grey Kangaroo Management Programme, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
The Grey Kangaroo Management Programme, introduced in 1971 by the Department of Fisheries and Fauna, is designed to ensure the long-term conservation of the grey kangaroo, while at the same time recognising the right of the landholder to protect his primary production from damage.
One of the points which has arisen after examination of the programme is that some individual farmers are not fully aware of the requirements of the regulations.
Phytoplankton Successions And Lake Dynamics In Las Vegas Bay, Lake Mead, Nevada, Ervon R. Koening, Richard W. Tew, James E. Deacon
Phytoplankton Successions And Lake Dynamics In Las Vegas Bay, Lake Mead, Nevada, Ervon R. Koening, Richard W. Tew, James E. Deacon
Publications (WR)
Phytoplankton successions, applications of the general growth equation, and physical measurements have been employed to investigate events occurring at the interface between industrial and sewage effluent contained in Las Vegas Wash and the waters of Lake Mead, Nevada. The data indicate that the entering waters tend to form a density current interrupted at intervals by dynamic effects generated in the lake. The dynamic relationships described here for the spring months suggest that a much more thorough understanding of physical, chemical and biological interactions is necessary to permit solution of the numerous problems of Las Vegas Bay discussed or alluded to …
Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency
Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency
Publications (WR)
This report was prepared by the Federal Water- Quality Administration, Pacific Southwest Region, now the Environmental Protection Agency (EPA), Region IX, at the request of the State of Nevada, Department of Health, Welfare, and rehabilitation. In a letter, dated December 5, 1969, this agency asked for technical assistance, as authorized by the Federal Water Pollution Control Act, in developing discharge standards appropriate for Las Vegas Bay, Lake Mead, and the Lower Colorado River. The subsequent study was performed by EPA from January through August, 1970. The establishment of Nevada State Water Quality Standards for these waters will enable responsible officials …
Ua45/6 Attack On The Environment, Wku Registrar
Ua45/6 Attack On The Environment, Wku Registrar
WKU Archives Records
Elvis Stahr's 1971 commencement speech.
A Conceptual Draft Of A Dynamic Hydro-Biological Model For Lake Mead, L. G. Everett, Bureau Of Reclamation
A Conceptual Draft Of A Dynamic Hydro-Biological Model For Lake Mead, L. G. Everett, Bureau Of Reclamation
Publications (WR)
Food and energy transformation in an aquatic system must be understood in order to develop a simulation approach. This report provides a comprehensive study of an aquatic ecosystem. The objectives of this report are to show:
(1) the biological relationships in an aquatic system
(2) the role of nutrients in the biological cycle
(3) the role of abiotic factors in a limnetic environment
(4) the status of the art of "Eutrophication modeling".
The Effect Of Las Vegas Wash Effluent Upon The Water Quality In Lake Mead, D. A. Hoffman, P. R. Tramutt, F. C. Heller, Bureau Of Reclamation
The Effect Of Las Vegas Wash Effluent Upon The Water Quality In Lake Mead, D. A. Hoffman, P. R. Tramutt, F. C. Heller, Bureau Of Reclamation
Publications (WR)
This study developed from observations made during an earlier study on Lake Mead which was reported in CHE-70, Water Quality Study of Lake Mead. Results from that study indicated that poor-quality water was flowing into the Las Vegas Bay reach of Boulder Basin, Lake Mead. Also reports of deteriorating water quality, resulting in taste and odors in domestic water supplies taken from Boulder Basin as well as a reduction in the attractiveness of Las Vegas Bay for recreational uses caused by aquatic plants and algae blooms, indicated a need for a concentrated study concerning the effects of flows from Las …
Tree Establishment In The Wheatbelt, F Batini
Tree Establishment In The Wheatbelt, F Batini
Journal of the Department of Agriculture, Western Australia, Series 4
Although most of the Forests Department's activity has centred around the State Forests in the higher rainfall areas, the Department has, for many years, encouraged the planting and conservation of trees throughout the farming areas.
Ecological Planning Workshop Poster April, 1970, Ian Mcharg, Risd Archives
Ecological Planning Workshop Poster April, 1970, Ian Mcharg, Risd Archives
Ecology and Environment
Ecological Planning Workshop Poster by Ian McHarg. April 24, 1970, RISD Auditorium.
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Ecology and Environment
RISD Landscape Architecture Study to Save Block Island Article from Designer's News, May 19, 1969 student newspaper.
Overgrazing And Wind Erosion, J R H Riches
Overgrazing And Wind Erosion, J R H Riches
Journal of the Department of Agriculture, Western Australia, Series 4
OVER the last few years wind erosion during the autumn in the wheatbelt districts has become increasingly evident.
This has occurred under normal seasonal conditions and observations in this article are not related to unusual conditions such as the extremely low rainfall during the current season.*
Pasture : Corner-Stone Of Soil Conservation, W J. Burdass
Pasture : Corner-Stone Of Soil Conservation, W J. Burdass
Journal of the Department of Agriculture, Western Australia, Series 4
LEGUME PASTURE is the basis of prosperity in farming in the agricultural areas of Western Australia.
The livestock industry could not thrive without it and it also maintains fertility and soil structure for the cereal growing industry.
It is, in fact, the comer-stone on which the soil conservation conscious farmer rests his soil management.
Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration
Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration
Publications (WR)
This report fulfills the request of the Colorado River Basin Project, Denver, Colorado, to determine the effects of municipal and industrial wastes on the aquatic life in selected waters of the Colorado River Basin. These studies were conducted with the assistance of personnel from the Colorado River Basin Project.
Multiple Cropping Will Increase The Erosion Hazard, W J. Burdass
Multiple Cropping Will Increase The Erosion Hazard, W J. Burdass
Journal of the Department of Agriculture, Western Australia, Series 4
WITH the low price of wool and the price of wheat high in comparison, farmers need little encouragement to increase their acreage of crops.
Unfortunately with increased cropping comes the risk of increased erosion—unless there is a simultaneous increase in the use of conservation practices.
Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation
Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation
Publications (WR)
PURPOSE
The purpose of the proposed research is to quantify the effects that Lakes Mead and Powell have on the salinity in the Colorado River system, and to evaluate changes that cap be made to the operating system of the reservoirs (within legal/institutional constraints) to enhance salt precipitation and/or minimize evaporation within the reservoirs. The effect of any changes (i.e., selective withdrawal uses, pumped storage, etc.) on reservoir evaporation could also be evaluated with a goal of minimizing evaporation. This will be accomplished through the development of a mathematical model of the reservoirs as described below.
BACKGROUND
Two major problems …
Winter Management Of Salt Land, T C. Stoneman
Winter Management Of Salt Land, T C. Stoneman
Journal of the Department of Agriculture, Western Australia, Series 4
WITH the emergence of crops, many farmers will again be seeing bare patches or thin stands of cereals due to salt accumulation.
Would these areas be better left out of cultivation, or should they have been planted to saltbush and bluebush?
Reclaiming Salt Land With Bluebush, Stanley Thomas Smith
Reclaiming Salt Land With Bluebush, Stanley Thomas Smith
Journal of the Department of Agriculture, Western Australia, Series 4
IN Western Australia there are approximately a million acres of salt land, some of which is a serious economic problem to individual farmers, unfortunate enough to have the major portion of their properties affected by salt encroachment.