Department of Environmental Sciences

Faculty: Daryl F. Dwyer

Daryl Dwyer

Associate Professor of Ecology
Director, Environmental Remediation & Restoration Lab
Ph.D. Michigan State University 1986

Research and Teaching Interests

  • Environmental microbiology
  • Bioremediation, phytoremediation
  • Natural attenuation
  • Microbial physiology, genetics

419.530.2661 |

ResearchCoursesPublicationsDownload Vitae (PDF)


Dwyer researchResearch objectives encompass modeling and understanding the interactions of soil, water, and plants and restoring converted or degraded sites to native habitat with sustainable design as a remediation goal. Current projects include:

  • The modeling and design of treatment wetlands to remove chemical contaminants, such as arsenic and other heavy metals, from water and soil.

  • The design of alternative landfill covers that rely on evapotranspiration to control leachate formation in older landfills such as those that are prevalent in Northwest Ohio.

  • The characterization of hydrodynamic, meteorlogical, and watershed variables in the fate and transport of bacterial and viral pathogens at the public swimming beaches of Maumee Bay for the development of a passive biological treatment system.



Rofkar, J.R., and Dwyer, D. F. 2013. Irrigation of three wetland plant species and a hyper accumulation fern with arsenic-laden solutions: observations of growth, arsenic uptake, nutrient status, and chlorophyll content. International Journal of Phytoremediation. 15:561-572.

Rofkar, J. R., Dwyer, D. F., and **Bobak, D. M. 2013. Uptake and toxicity of arsenic, copper and silicon in Azolla coroliniana and Lemna minor. International Journal of Phytoremediation. In press; accepte September, 2012.

Barnswell, K., and Dwyer, D. F., 2012. Two-year performance by evapotranspiration covers for municipal solid waste landfills in northwest Ohio. Waste Management. 32:2336-2341.

Barnswell, K.D. and Dwyer, D.F. 2011. Assessing the Performance of Evapotranspiration Covers for Municipal Solid Waste Landfills in Northwestern Ohio. Journal of Environmental Engineering. 137, 301.

Rofkar, J.R. and Dwyer, D.F. 2011. Effects of light regime, temperature, and plant age on uptake of arsenic by Spartina pectinata and Carex stricta. International Journal of Phytoremediation. 13(6):528-37.

Barnswell, K.D. and Dwyer, D.F. 2007. Vascular flora of the King Road landfill in northwest Ohio. Ohio Journal of Science. 107:91-103.

Rofkar, J.R., Dwyer, D.F., and Frantz, J.M. 2007. Analysis of arsenic uptake by plant species selected for growth in northwest Ohio by Inductively Coupled Plasma-Optical Emission Spectroscopy. Communications in Soil Science and Plant Analysis. 38:2505-2517.



  • EEES 2150 BIODIVERSITY [3 hours] Examination of the diversity of life on earth and its evolution, systematics and behavior; the structure of ecosystems, and concepts of population and community ecology. [Fall] Natural Sciences core course.

  • EEES 4510 ENVIRONMENTAL MICROBIOLOGY [3 hours] The diversity of microbial life and activities, the functioning of microbial ecosystems in energy and carbon flow and remediation of polluted environments, and the detection and control of pathogens. [taught when demand warrants] Prerequisite: EEES 2150 and CHEM 1230 or consent of instructor.

  • EEES 4520 BIOREMEDIATION [3 hours] The environmental fate and transport of contaminants; their transformation and biodegradation by plants and microorganisms; bioremediation strategies, including solid phase, slurry phase, and vapor-phase treatments, and natural attenuation. [taught when demand warrants] Corequisite: EEES 2150 and CHEM 1230 or consent of instructor.

  • EEES 4530 PHYTOREMEDIATION PRINCIPLES [3 hours] Course describes the process of phytoremediation with references to both physiological modes of uptake and transformation of contaminants to field applications. [taught when demand warrants] Prerequisite: EEES 2150 and CHEM 1230 or consent of instructor.

  • EEES 3900 LITERATURE AND COMMUNICATIONS IN THE ENVIRONMENTAL SCIENCES [3 hours] Includes discussions of environmental issues featuring guest experts from a variety of environmental-related occupations, readings in environmental literature and student reports on projects and internships. [Spring] Prerequisite: Junior or senior standing. (Taught as a writing intensive course)

  • EEES 4980 SPECIAL TOPICS: ADVANCED UNDERGRADUATE [1 - 4 hours] An advanced undergraduate course covering some aspect of the environmental sciences not covered in the formal upper-division undergraduate curriculum. Student may repeat the course for different topics. Prerequisite: Consent of instructor.


Last Updated: 5/27/20