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Trace-Level Determination Of Fluorescently Labeled Phenoxy Acid Herbicides And The Study Of Their Crop Uptake And Soil Accumulation, Noura Saeed Al Nuaimi

Theses

A challenging problem facing the determination of phenoxy acid herbicides in samples is their low UV absorptivity and the interference associated with the matrix in which these analytes exist. This thesis is concerned with improving the detection limits of this group of herbicid as well as reduce or eliminate interference associated with the sample matrix.

Native phenoxy acid herbicides could be analyzed by high performance liquid chromatography (HPLC) with ultraviolet detection. Phenoxy herbicides were analyzed by HPLC employing a gradient conditions that allowed baseline resolution of all analytes used in this study in approximately 20 min. However, the average detection …

Evaluation Of Multimedia Chemistry Courseware, Ryan D. Isahac

Theses

With the every growing costs of running a Chemistry laboratory and the ever-changing needs of today's studenis a logical alternative seems to be a computer based instructional format. When delivering courseware via the Internet, the greatest problem comes in making the interface and applications user-friendly and not jusi attractive. In order to test the utility of such a site, subjects are recruited and asked to evaluate the system. Their responses are essential in designing and improving the program to best meet the needs of students. In order to address student concerns, a Help Page was developed which clarified areas and …

Protection Of The New York City Water Supply Land Development Threats And The Programs To Control Them, Werner Mueller

Theses

The Surface Water Treatment Rule under the Safe Drinking Water Act requires that all surface water sources used for drinking water must be filtered, unless the purveyor can demonstrate that the water is of such high quality that filtration is not required. The New York City Department of Environmental Protection (DEP) operates the New York City water supply system and is taking actions to ensure that the water supplied from the Catskill -- Delaware system remains of high enough quality to maintain an avoidance of filtration determination granted by the Environmental Protection Agency (EPA). New watershed rules and regulations have …

Removal Of Trace Contaminants From Wastewater Effluents Using Local Adsorbents, Kasim Ghulam Haider Ghulam

Theses

Wastewater reclamation must ensure removal of residual pollutants to a high degree so as to make the water acceptable for the designated reuse. There has been a growing interest worldwide to employ cost-effective treatment methods for polishing secondary treatment wastewater effluents. Carbon adsorption has proved to be an effective method for effluent polishing but treatment costs are relatively high.

AI-Ain wastewater treatment plant at Zakher has a design capacity of 54,000 m³/day and incorporates preliminary treatment, followed by extended aeration and dual-media filtration for effluent polishing before water reuse in irrigation. The chemical quality of the treated effluent …

Effect Of Culturing Time And Hormonal Combinations On Organogenesis Of Date Palm (Phoenix Dactylifera L., Cv. Khnazi) In Vitro, Helal Homaid S. Al-Kaabi

Theses

Date palm (Phoenix dactylifera L.) monocotyledon dioecious tree is one of the most important fruit crop trees in the Arabian Gulf region in general and in the UAE in particular.

Date palm is propagated sexually by seeds or vegetative by offshoots. Seed propagation is not appropriate for commercial production because of the high genetic heterozygosity, which resulted in not true-to-type male and female seedlings. The vegetative propagation utilizing offshoots is slow and inefficient for rapidly growing demands of the date industry. Therefore, it seems essential to use plant tissue culture techniques for propagating and producing date palms.

The present …

Growth And Performance Of Some Forage And Landscape Species Directly Irrigated With Saline Water, Mohammed Abdul Muhsen Ali Salem

Theses

This work aimed to study the growth and physiological performance of SIX forage and

landscape species grown in Nahshalah farm , Zayed International Agricultural and Environmental Research Program Among these species 4 mangrove plants were first Introduced to U. A. E cli mate and soils In addition, Acacia ampliceps and Atriplex amnicola The study covered 1- 7 years plants were irrigated With 25 ppt . Saline water. The study investigated also the changes in the soil chemical characteristics and mineral composition during the 1 -9 years direct irrigation with saline water

The growth performance was measured based on the sufficient …

An Examination Of The Self-Perceptions Of The Physical Environment And Psychological Health Of Latina Women Living In The St. Columbia Neighborhood Of Newark, New Jersey, Veronica Maria Maya

Theses

A correlation between perceptions of environmental quality and psychological health has been established in a sample of Latina women. Three psychological scales exist to measure psychological constructs such as learned helplessness, hopelessness, and selfesteem. These three scales have been used in conjunction with an environmental survey designed to capture the perceptions of the sample to their physical environment.

The mean of scores for each psychological construct in the Latina sample were compared to the mean of scores for these constructs in independent samples of oncology, hemodialysis, and spinal cord injured patients being treated for depression. This comparison yields the following …

History Of Oxygenated Gasoline Use In New Jersey 1992-1998, Jean Niebuhr Borne

Theses

New Jersey has been required to use oxygenated gasoline from November 1 to March 30 since 1992 in order to reduce carbon monoxide from vehicles. This requirement was part of the Clean Air Act Amendments of 1990. For the past six winters, New Jersey has utilized gasoline with methyl butyl tertiary ether, MTBE, as the oxygenate. In New Jersey, and in many states across the country, health complaints were reported after oxygenated fuel started flowing from gas pumps.

Oxybusters is a grassroots organization dedicated to the removal of oxygenated gasoline off the market. The group has pressured Governor Whitman to …

Management Of Emissions At Abu Dhabi Gas Liquefaction Company, Abdul Aziz R Al Nuaimi

Theses

Gas industries in the United Arab Emirates are vastly growing in order to mainly cope with the increasing demand for energy productions as well as for the wise utilization of gas associate with the crude oil. Environmental problems coupled with gas employment necessitates the development of a management techniques that can lead to better control of emissions from gas processing companies since some of these emissions are unavoidable for safety reasons.

This study suggests a framework to be used to control emissions from Abu Dhabi Gas Liquefaction Company (ADGAS) in Das Island, which represents a typical major gas processing company …

An Investigation Of The Effect Of Sonic Frequency In The Removal Of Volatile Organic Compounds From Soils Using A Siren-Pneumatic Fracturing Coupled Technique, Chin-Yu Lin

Theses

This study investigates the effect of frequency from sonic energy coupled with soil fracturing for the removal of volatile organic compounds from low permeability soils. The laboratory experiments consisted of a test cell, 12 1/2 inches by 12 1/2 inches and 23 3/4 inches high, containing a 1/2 inch geotextile made to simulate the fracture. The pneumatic sound generator used was a siren type generator designed and built at NJIT.

Laboratory experiments were performed using the NJJT siren at frequencies of 2957, 6637, 10317, 13997 Hertz and baseline tests with no sound energy were also conducted. The free moisture …

Preliminary Ecological Risk Assessment To Assess The Implications Of Replacing Chromium Plating With Tantalum Coating, Erik Jonathan Weiss

Theses

An ecological risk assessment process requires a modeling tool that can adapt to changing environmental conditions. Computer simulation tools are a useful means to develop an ecological risk assessment, because if properly used they can provide an organized framework to evaluate multiple data sources, complex problems and hypotheses. An evaluation was completed of the University of Tennessee CHEMS-1 model that ranks and scores contaminant toxicity and exposure potential. Tantalum posed less of a hazard than hexavalent chromium to the terrestrial and aquatic animals. Although, results indicated that the vanadium compounds, in particular vanadium pentoxide, presented the greatest hazard, with hexavalent …

Vitamin Effect On The Aerobic Biodegradation Of Phenanthrene, Antracene, Fluoranthene, And Pyrene In A Contaminated Soil From An Industrial Site, Ilkay Cam

Theses

Bioremediation of organic wastes is often a cost-effective technology for the in situ treatment of contaminated soils. In this study, the possibility of increasing the rate and extent of biodegradation for phenathrene, anthracene, fluoranthene, and pyrene in an industrial PAH contaminated soil via vitamin mixture supplementation was explored.

Soil contained with PAHs was obtainecl from the Bayway refinery site formerly owned by Exxon (Linden, NJ). Experiments were conducted in which the contaminated soil was amended with a mixtures of four vitamins (niacin, biotin, folic acid, and panthothenic acid). Peat moss, a common soil amendment, was also added in some experiments. …

User-Responsivity And Environment-Sensitivity Consideration For State-Funded Housing In Alain City, Nassra Saif Al Daheri

Theses

Massive housing projects have shown that prospective users are rarely given the opportunity to participate in the design decisions. Subsequently, such schemes commonly fail to accommodate all their needs. In the Emirate of Abu Dhabi, the housing projects that aim at resettling of Bedouin into newly developed urban communities are state-funded. Many of these houses that were built in the late seventies and early eighties were transferred back to the state (in a very bad condition due to the users random modifications and additions) in exchange of newer better houses. The lack of an adaptive design concept that can accommodate …

Effect Of The Environmental Parameters On The Distribution Of Foraminifera In The Coastal Area Of Ras Al Khaimah, U.A.E., Naama Obaid Saif Al-Kaabi

Theses

Twenty samples of sea water and twenty samples of sediment were collected from the off shore area of Ras AI-Khaimah to find out the relationships between environmental parameters, abundance of foraminifera, and ratio of living to dead foraminifera.

Analysis of sea water for the environmental parameters includs, temperature, salinity and nutrient salts (nitrate, nitrite, silicate, phosphate and amonia). Organic mattar, and total carbonate were measured in the bottom sediments. Grain size analysis of the bottom sediments was done using seiving method. The foraminiferal species were picked, counted and photographed using the SEM. The ratio of dead to living forams was …