Ann Lemley

Web Bio Page

Current Activities

Current Professional Activities

Current Research Activities
Degradation of contaminants in water using chemical means is the current focal point of Dr. Lemley's research. Fast, convenient methods to degrade contaminants and decrease toxicity in groundwater, surface water, or wastewater are being investigated. A current project investigates the use of an electrochemical system employing an advanced oxidation treatment system method (Fenton chemistry) to degrade low levels of pesticides and other chemical contaminants in water. This system has the capability of being used in a flow-through mode with potential applications for treating rinsewater from pesticide application equipment, contaminated groundwater, or other contaminated water supplies. The methods can also be applied to water contaminated with many other toxic organic chemicals. A second research area of interest is the measurement of pesticide residues in home settings in order to understand their source and the exposure of occupants, particularly children.

Current Extension Activities
We have developed a website for people with private water systems and those on public supplies who are concerned about the treatment of the water in their homes.  There are numerous fact sheets and bulletins about water quality, connections to other relevant sites, and frequently asked questions.  The site is


Biographical Statement
Ann T. Lemley is a Professor in the College of Human Ecology and is currently Chair of the Department of Fiber Science & Apparel Design. Her faculty appointment is a combination of Research and Outreach. Her faculty appointment is a combination of Research and Outreach. Her research goal is to study the remediation of contaminants in the environment, particularly water and soil systems, in order to assess and decrease risks through removal or treatment. Projects have focused on pesticides, pharmaceuticals, and other organic contaminants. She and her group study advanced oxidation treatment methods, particularly the electrochemical Fenton method, including degradation kinetics, degradation products, and mechanisms. She is the author of over 60 papers in refereed journals and is on the Editorial Board of several journals. She is the former chair (2000) of the Agrochemical Division of the American Chemical Society and is currently a member of its Executive Committee. Her Outreach Program is conducted through Cornell Cooperative Extension and other outlets and focuses on environmental issues such as drinking water protection and quality, home water treatment, household chemicals, and household hazardous waste. She was recognized by the USDA with an IMPACT 2000 award for her Rural Water Quality Education Program. She is the author of an extensive library of educational facts sheets and other materials, many of which can be found on her Water Quality Website,


Ph.D. 1971 - Cornell University, Chemistry

M.S. 1970 - Cornell University, Chemistry

B.A. 1966 - St. John's University, Magna Cum Laude, Chemistry and Education

Administrative Responsibilities
Professor and Chair, Department of Fiber Science & Apparel Design

Courses, Websites, Pubs

Related Websites

Selected Publications
P. Ye, L. Kong, and A.T. Lemley. Kinetics of carbaryl degradation by anodic Fenton treatment in a humic acid amended artificial soil slurry. Wat. Env. Res.81:29-39 (2009).

P. Ye and A.T. Lemley. Adsorption effect on the degradation of carbaryl, mecoprop and paraquat by Anodic Fenton Treatment in an Swy-2 montmorillonite clay slurry. J. Ag. and Food Chem. 56 (21):10200–10207 (2008).

H. Zhang and A.T. Lemley. Evaluation of the Performance of Flow-through Anodic Fenton Treatment in Amide Compounds Degradation. J. Ag. Food Chem. 55:4073-4079 (2007).

L. Kong and A.T. Lemley. Effect of nonionic surfactants on the oxidation of carbaryl by anodic Fenton treatment. J. Water Res. 41: 2794-2802 (2007).

S. Hong, H. Zhang, C.M. Duttweiler, and A.T. Lemley. Degradation of methyl tertiary butyl ether (MTBE) by anodic Fenton treatment. J. Haz. Mat. 144:29-40 (2007).

L. Kong and A.T. Lemley. Modeling evaluation of carbaryl degradation in a continuously stirred tank reactor by anodic Fenton treatment. J. Ag. Food Chem. 54:10061-10069 (2006).

H. Zhang and A.T. Lemley. Reaction mechanism and kinetic modeling of DEET degradation by flow-through anodic Fenton treatment (FAFT). Environ. Sci. & Tech. 40:4488-4494 (2006).

L. Kong and A.T. Lemley. Kinetic modeling of 2,4-D degradation in soil slurry by anodic Fenton treatment. J. Ag. Food Chem. 54:3941-3950 (2006).

C.L. Friedman, A.T. Lemley, and A.Hay. Degradation of chloroacetanilide herbicides by anodic Fenton treatment. J. Ag. Food Chem. 54:2640-2651 (2006).

S.E. Bloom, A.T. Lemley, and D.E. Muscarella. Potentiation of apoptosis by heat stress plus pesticide exposure in stress resistant human B-lymphoma cells and its attenuation through interaction with follicular dendritic cells: role for c-jun N-terminal kinase signaling. Toxicol. Sci.89(1):214-223 (2006).

S. K. Obendorf, A.T. Lemley, A. Hedge, A.A. Kline, K. Tan, and T. Dokuchayeva. Distribution of pesticide residues within homes in central New York state. Arch. Environ. Contam. Toxicol. 50:31-44 (2006) 

Q. Wang and A.T. Lemley. Reduced adsorption of ametryn in clay, humic acid, and soil by interaction with ferric ion under Fenton treatment conditions, J. Environ. Sci.Health Part B 41:223-236 (2006)

L. Wagenet, A. Lemley, D. Grantham, E. Harrison, K. DiTella, K. Mathers, and L.H. Younge. Evaluating the effectiveness of public television as a method for watershed education J.of Extens.( 43(2): Article No. 2FEA5 (2005). 

Q. Wang and A.T. Lemley. Kinetic effect of humic acid on alachlor degradation by anodic Fenton treatment. J.Environ. Quality, 33:2343-2352 (2004). 

E. Scherer, Q, Wang, A. G. Hay, and A.T. Lemley. The binary treatment of aqueous metribuzin using anodic Fenton treatment and biodegradation. Arch. Environ. Contam. Toxicol., 47: 154-161 (2004).

Pesticide Decontamination and Detoxification, eds., J.J.Gan, P.C. Zhu, S.D. Aust, A.T. Lemley, ACS Symposium Series 863, Washington, DC (2003).

A.T. Lemley, Q. Wang, and D.A. Saltmiras. Anodic Fenton degradation of pesticides. In Pesticide Decontamination and Detoxification, eds, J.J. Gan, P.C. Zhu, S.D. Aust, A.T., Lemley, ACS Symposium Series 863:65-83 (2003).