Welcome to Marian Ponte Consultant
The successful conduct of the required regulatory studies in the areas of environmental fate, metabolism, and residue are often very complex and difficult to navigate. I bring over thirty three years of proven expertise, from designing and monitoring studies to interacting with CROs and regulatory agencies to ensure your agrochemicals and consumer products meet the rigorous guidelines set by global regulatory agencies
Services
Expert Guidance
Study design and management tailored to the specific needs of your active ingredient to fulfill the regulatory guidelines for US and/or international submissions (US EPA, PMRA, OECD, Japan JMAFF, Brazil ENVISA, etc.). Timely client communications throughout. Study management from the beginning of the project including design, interactions with the involved CRO(s) spanning method development, dosing, troubleshooting, data evaluation, report preparation, metabolite characterization/ identification, etc.
Tailored Solutions
Customized consulting services that cater specifically to your product's needs and regulatory requirements: registration of a new a.i., reregistration, or registration in a new market, single studies to fill data gaps or core data packages, review of available data,to answer regulatory authority questions, advices on test systems, sites, etc. for future studies, report preparation/review, method development, metabolite identification, bound residue characterization (soil, plants, animal matrices)
E Fate/ Metabolism/ Residue
Use of US and international regulations expertise on core studies: Environmental Fate - soil and aquatic metabolism, hydrolysis, aqueous and soil photolysis, field dissipation (soil and aquatic), lab and field volatility - Plant and livestock metabolism - Analytical phase and study monitoring for residue studies
Training
Tailored training for study directors and principal investigators looking to better understand the intricacies and pitfalls of conducting environmental fate and metabolism core studies, conducted either on-site or virtually.
Contact me for more information
About Marian Ponte Consultant
- Over 30 years of experience in the agrochemical contract research industry specializing in the Environmental Fate, Metabolism and Residue core requirements that are foundational to the successful registration of an active ingredient
- Conducted/oversaw over 300 regulatory studies on agrochemicals, industrial and consumer products for submission to global regulatory agencies, including active ingredients with complex and challenging chemistries
- Acted as consulting expert in meetings with US and international regulatory agencies in the capacity of CRO and/or consulting firm at the behest of the clients
- Set up mentoring and training programs for new study directors
- Professional history
- Exponent, Inc. 2021-2025
- Eurofins Agroscience Services (formerly EAG) 2018-2021
- EAG (formerly PTRL West) 2016-2018
- PTRL West, Inc. 1991-2016
- Publications and presentations
- Shepler, K., M. Ponte, I. Tada, N. Ikemi and N. Ken Umetsu. “Mobility of Benfuracarb and its Metabolite Carbofuran.” 11th International Congress of Pesticide Chemistry, IUPAC, Kobe, Japan (2006).
- Suzuki, Y, Lopez A., Ponte, M., Fujisawa, T., Ruzo, L.O., Katagi, T., “Photoinduced Oxidation of the Insecticide Phenothrin on Soil Surfaces”, J. Agric. Food Chem. 2011, 59, 10182-10190.
- Gaddamidi, V., Zimmerman, W.T., Ponte, M. and Ruzo, L., “Pyrolysis of [14C]-Chlorantraniliprole in Tobacco”, J. Agric. Food Chem. 2011, 59, 9424-9432.
- Lee, M., Ponte, M. “Concentration Methods of Aquatic or Soil/Sediment Samples in Preparation for Chromatographic Analyses”, ACS National Meeting, Agrochemical Division, August 2017, Washington D.C.
- Schick, M, Ponte, M., “Adsorption Coefficient Relationships vs Typical Soil Characteristics for Different Agrochemical Classes”, ACS National Meeting, Agrochemical Division, August 2017, Washington, D.C.
- Ponte, M., “The Evolution of the Contract Research Organizations (CRO) in the Agrochemical Industry: a look at the challenges facing CROs in the 21st century”, ACS National Meeting, Agrochemical Division, August 2018, Boston
- Ponte, M., “Persistence Assessments in the 21st Century”, Chemical Risk Manager, Chemical Watch, 2018
- Ponte, M., "Approaches to Metabolite Identification Following Metabolism in Soil and/or Sediment/Water Systems", Keynote Speaker, 2019 International and SELAMAT Workshop on Pesticide Residue and Environmental Safety, Anhui, China.
- Ponte, M. and M. Chandrashekkar, “Contract Research, Good Laboratory Practices and Other Challenges for the Agrochemical Professional”, in “Safe and Sustainable Crop Protection”, Chapter 8, Lynn, K., Ma, M., Yang Q, Yao, Yi, editors, ACS symposium series, 1334, Washington D.C., American Chemical Society, 2019, pp. 123-132.
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