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The use of chemical analyses, bioassays and benthic biomonitoring in the toxicity assessment of complex industrial effluents /Sarakinos, Helen C. January 1997 (has links)
No description available.
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When it Rains it Runs Off: Runoff and Urbanized Areas in ArizonaWaters, Summer, Farrell-Poe, Kitt, Wagner, Kristen 07 1900 (has links)
5 pp. / Urban run-off is created by rain, snowmelt, or irrigation water flowing across sidewalks, drive ways, roadways, and other surfaces into storm drains. All storm drains empty into rivers or river beds, lakes, streams, washes, and other storage areas often without treatment. The Urban Run-off (Non-point Source Pollution) Tip Sheet will educate the reader on urban run-off and associated water pollution. The tip sheet explains the causes, effects, and sources of non-point source pollution. It also provides information on what can be done to prevent urban run-off and water pollution. It includes both general information as well as information specific to Maricopa County.
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The use of Gammarus pulex (L.) to assess pollutionCrane, Mark January 1993 (has links)
No description available.
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Comparison of methods for detection of pollution based on studies on the sanitary quality of rural drinking watersLarkins, Milton Edward. January 1950 (has links)
Call number: LD2668 .T4 1950 L3 / Master of Science
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Characteristics of runoff from disposal of cattle feedlot wastes on landHarris, Michael E. January 2010 (has links)
Digitized by Kansas Correctional Industries
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Denitrification in a soil column with incorporated beef manure and applied anaerobic lagoon waterGartung, Jimmie Lee January 2010 (has links)
Digitized by Kansas Correctional Industries
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The effects of turbidity on the rate of biochemical oxidationChueh, Jiaan-Hwa January 2010 (has links)
Digitized by Kansas Correctional Industries
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A calculation of flushing times and pollution distribution for the Columbia River estuaryNeal, Victor Thomas 10 May 1965 (has links)
The probable pollution distribution and flushing times have been
calculated for the Columbia River Estuary, a coastal plain estuary.
The pollution distribution was determined by the fresh water fraction
and by the diffusion equation. The flushing times were calculated by
the modified tidal prism method and by the fraction of fresh water,
These methods are explained and discussed in the study.
The widely varying river flow and resulting salt water intrusion
were considered, as well as the varying semi-diurnal tidal range.
These changing factors cause a complex variation in estuarine classification
from well-mixed to stratified.
The data used was taken principally from the U. S. Corps of
Engineers current measurement program of 1959. The data show a
stronger flow on the north side of the estuary during flood tide and a
stronger flow on the south side during ebb tide. Due to this fact, the
estuary was also treated as two separate channels in calculating the
pollution distribution.
The results of the various calculations for combinations of conditions
are given in this study. A comparison of the different methods
is also summarized.
The estuary has been found to have a relatively short flushing
time, even under low river flow conditions. The variation in strength
of flow from the north side to the south side has been shown to produce
pollution distributions not normally expected in an estuary. / Graduation date: 1965
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Modeling estuary pollution by computer simulationGrenney, William J. 16 October 1970 (has links)
A digital computer model was developed to simulate the time
and space distribution of a dissolved pollutant in an estuary. The program
is basically a one-dimensional finite-difference model, but two
dimensions can be represented by attaching together several one-dimensional
channels. The influence of convection, dispersion and
decay are included in the model. The time scale is based on increments
of less than one tidal cycle so that intertidal velocities are
represented.
A sensitivity analysis was conducted on the convection portion
of the model and several tables and graphs are included to indicate
the nature and magnitude of numerical errors associated with the
model. A method for correcting these errors is also presented.
A tracer study was conducted on the Yaquina Estuary, Newport,
Oregon and results are compared with two computer model simulations. / Graduation date: 1971
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noneLin, Chih-hsien 29 November 2004 (has links)
none
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