Theses and Dissertations

Date of Award


Document Type


Degree Name

Master of Science (MS)



First Advisor

Dr. Jason G. Parsons

Second Advisor

Dr. Evangelia Kotsikorou

Third Advisor

Dr. Arnulfo Mar


The natural and anthropogenic contamination of water by arsenic has become a major concern to the environment and public health. Phytoremediation is an attractive alternative to ecologically friendly remove contaminants at a potential high efficiency and low cost. Absorption of As(III) and As(V) was evaluated by the measuring the content of arsenic in the roots, leaves and stems Cassia fistula grown under controlled conditions in a hydroponics system. After seeds were germinated, the plants were grown in Hoagland nutrient solution individually supplemented with 1, 2, 5 ppm of As(III) and As(V). After two weeks of exposure, samples of leaves, roots, and stems were analyzed by ICP-OES. The results show the highest average amount arsenic was present in the roots and leaves in the plants; the presence of arsenic is favored in a range of concentrations of 1-5 ppm. Cassia fistula shows a promising alternative for the removal of arsenic in contaminated water.


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