Prof. Kathy Lewis, BSc, PhD, FIAP, MIEMA
Professor of Agricultural Chemistry

Tel.: +44 (0)1707 284582

Kathy is an environmental chemist and research leader for the Agriculture and Environment Research Unit. She joined the University in 1995 and established AERU soon after. Kathy became a Professor in 2014.

Kathy's main areas of interest include environmental management of agriculture, horticulture and land-use, in particular environmental pollution from chemical inputs and the impacts arising from agricultural processes taking a whole farm perspective. She is also involved in the development of techniques to encourage a more sustainable agriculture including the socio-economic aspects, rural development, policy issues, environmental labelling and green taxes. Kathy's work covers a wide spectrum of topics including pesticides, nutrients, waste and resources and biodiversity, particularly with respect to climate change and rural development. This has evolved over the years to cover the entire farm to fork production chain particularly with respect to policy development.

Kathy is a Fellow of the Institute of Analysts and Programmers (FIAP) and a Member of the Institute of Environmental Management and Assessment (MIEMA).


Kathy's first degree in environmental chemistry with computer science was awarded by the Council for National Academic Awards (CNAA), and her PhD in agricultural best practice and was awarded by the University of Hertfordshire.

Previous employment

Before joining the University of Hertfordshire, Kathy spent 23 years at Warren Spring Laboratory and 1 year in Industry working as an Environmental Manager.

Selected projects

  • Waitrose pesticide load indicator for sustainable crop protection
  • Review of Livestock Feed Additives that have Direct Beneficial Effect on the Environment
  • The climate change mitigation potential of an EU farm: towards a farm-based integrated assessment
  • Assessment of reduction in environmental burdens through targeted measures compared with whole farm approaches in cropping and livestock systems
  • Development of chemical substance databases (PPDB, VSDB, BPDB)
  • Effective approaches to environmental labelling of food products
  • Developing software tools for pesticide risk assessment for the EU FOOTPRINT Project
  • Comparison of the Environmental Risk of Pesticides used in Conventional and Integrated Farming Systems for Farms
  • Concerted Action of Pesticide Environmental Risk Indicators (CAPER)

Recent publications

  • Green, A., Lewis, K.A., Tzilivakis, J. & Warner D.J. (2017). Agricultural climate change mitigation: carbon calculators as a guide for decision making. International Journal of Agricultural Sustainability. DOI
  • Lewis, K. & Tzilivakis, J. (2017). Development of a data set of pesticide dissipation rates in/on various plant matrices for the Pesticide Properties DataBase (PPDB). Data, 2(3), 28. DOI
  • Green, A., Tzilivakis, J., Warner, D. & Lewis, K. (2017). Problems of Benchmarking Greenhouse Gas Emissions in Dairy Agriculture. Benchmarking: An International Journal, 24(6): 1470-1489. DOI
  • Tzilivakis, J., Warner, D.J., Green, A. & Lewis, K.A. (2017). Spatial and temporal variability of greenhouse gas emissions from rural development land use operations. Mitigation and Adaptation Strategies for Global Change, 22(3): 447-467. DOI.
  • Warner, D., Tzilivakis, J., Green, A. & Lewis, K. (2017). Ecological Focus Areas and beneficial insect (Coleoptera: Carabidae) conservation for pest control: habitat suitability and farm specific factors. In: G. Begg, F. Bianchi, N. Birch, B. Gerowitt, J. Holland, D. Lupi, C. Moonen, M. Ramsden & P. van Rijn (Eds.), Proceedings of the 7th IOBC-WPRS Working Group meeting on Landscape Management for Functional Biodiversity (IOBC-WPRS Bulletin vol. 122). Dundee (Scotland, UK), 29-31 March, 6-10.

Prof. Kathy Lewis's extended publications list.

Link to UH profile page

University of Hertfordshire
University of Hertfordshire, 2017.