Contact Us

Daniel  Andersen

Assistant Professor/ Extension Agricultural Engineer, Department of Agricultural and Biosystems Engineering
(515) 294-4210 E-mail: dsa@iastate.edu
Responsibilities: Research, Extension
Areas of expertise: Manure  management, manure storage and application, manure treatment, conservation planning, runoff control around animal facilities.

Jay Harmon

Professor / Extension Agricultural Engineer, Department of Agricultural & Biosystems Engineering
(515) 294-0554 E-mail: jharmon@iastate.edu
Responsibilities: Research, Extension, Teaching
Areas of expertise: livestock production systems (conventional and alternative systems), ventilation and air quality within livestock facilities, carcass composting, ambient odor and gas concentrations associated with livestock facilities, siting of new livestock facilities

Jerry Hatfield

Laboratory Director, USDA/ARS National Soil Tilth Laboratory
(515) 294-5723 E-mail: jerry.hatfield@ars.usda.gov
Responsibilities: Lead interdisciplinary federal laboratory that addresses interaction between agricultural management practices and resulting effects on environmental and soil quality
Areas of expertise: Micrometeorology and dynamics of air flow that affect emission and dispersion from agricultural operations; dynamics of greenhouse gas emissions from soil management systems, livestock operations and manure management

Steven Hoff

Professor, Department of Agricultural & Biosystems Engineering
(515) 294-6180 E-mail: hoffer@iastate.edu
Responsibilities: Research (50%) and teaching (50%) in areas of animal housing, air quality, sensors, instrumentation
Areas of expertise: Animal housing, environmental control, air quality, air emissions and odor modeling

Jacek Koziel

Associate Professor, Department of Agricultural & Biosystems Engineering
Phone: (515) 294-4206 E-mail: koziel@iastate.edu
Responsibilities: Research (50%), Teaching (50%) in air pollution, animal production systems, agricultural engineering and technology
Areas of expertise: Air-quality engineering and livestock odor, air quality monitoring, environmental analysis, odor control

John Mabry

Professor, Department of Animal Science
(515) 294-4103 E-mail: jmabry@iastate.edu
Responsibilities: Research, Extension
Areas of expertise: Statistical analysis of research, experimental design, swine genetic systems, environmentally and economically sustainable swine systems

Richard Pfeiffer

Research Chemist, USDA/ARS National Soil Tilth Laboratory
(515) 294-0136 E-mail: dick.pfeiffer@ars.usda.gov
Responsibilities: Research
Areas of expertise: Development of methods for detection of gases and particulates in the atmosphere; evaluation of methods for monitoring air quality

John Prueger

Research Soil Scientist, USDA/ARS National Soil Tilth Laboratory
(515) 294-7496 E-mail: john.prueger@ars.usda.gov
Responsibilities: Research
Areas of expertise: Micrometeorology of air flow across surfaces, turbulent exchanges and dynamics of complex surfaces that govern emission and dispersion

Ken Stalder

Associate Professor / Extension Swine Specialist, Department of Animal Science
(515) 294-4683 E-mail: stalder@iastate.edu
Responsibilities: Research, Extension
Areas of expertise: Swine production systems, data analysis and interpretation, animal breeding

Steven Trabue

Research Chemist, USDA/ARS National Soil Tilth Laboratory
(515) 294-0201 E-mail: steven.trabue@ars.usda.gov
Responsibilities: Research
Area of expertise: Air quality/odor; air sampling techniques for speciation of volatile organic compounds and volatile sulfur compounds in air and on particulate matter

John Tyndall

Assistant Professor, Department of Natural Resource Ecology and Management
(515) 294-4912 E-mail: jtyndall@iastate.edu
Responsibilities: Research, Teaching
Areas of expertise: Design, placement, efficacy and management of vegetative environmental buffer systems for livestock and poultry operations; environmental stewardship planning

Hongwei Xin

Professor, Department of Agricultural & Biosystems Engineering
3204 National Swine Research and Information Center
(515) 294-4240 E-mail: hxin@iastate.edu
Responsibilities: Research, Extension
Areas of expertise: Measurement, modeling and mitigation of air emissions from animal (particularly poultry) feeding operations, air quality instrumentation, housing and environmental control for enhanced animal welfare and sustained production efficiency

Jeffrey Zimmerman

Professor, Department of Veterinary Diagnostic and Production Animal Medicine
(515) 294-1073 E-mail: jjzimm@iastate.edu
Responsibilities: Research, Education
Areas of expertise: Economics and epidemiology of infectious livestock diseases, disease ecology and the mechanisms by which infectious agents are maintained in host populations