Analytical chemist explores contaminant impacts on water and soil quality

Apr 02, 2025

Dr. Alistair Brown joined the Department of Soil Science as Manitoba Analytical Solutions (MASS) Lab Director and Assistant Professor, on October 1, 2024. His interest in analytical chemistry was sparked during his undergraduate studies when a course on ecotoxicology shifted his career focus. Today, Alistair explores the fate and toxicity of environmental contaminants in soils and water, including UV filters, pesticides, and perfluorinated compounds.

Tell us about yourself

I’ve been with my wife Kendra for 23 years, and I have two sons, Asher and Jude, who are 16 and 13 respectively, and our dog Ollie who turns two tomorrow. I am a mass spectrometry method validation specialist. I got my BSc (Biochemistry) from the University of Winnipeg in 2013, and PhD (Chemistry) from the University of Manitoba in 2019. In my post-doc, I developed analytical methods for federal compliance under the Cannabis Act (2018), after which time I worked with Environment and Climate Change Canada studying the impact of different retention structures on nutrient loading into the Red River Basin. During the pandemic, I made several courses for the Department of Environment and Geography, after which I was solicited to create the Faculty of Agricultural and Food Sciences’ Manitoba Analytical Solutions (MASS) Lab in the Richardson Centre for Food Technology and Research. Now I have made numerous additional methods for several faculties, in addition to Health Canada.

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Video: Dr. Emerson Nafziger: Nitrogen Fertilizer Rates for Corn

The Crop Science Podcast Show, Dr. Emerson Nafziger from the University of Illinois breaks down decades of nitrogen research. From the evolution of N rate guidelines to how soil health and hybrid genetics influence nitrogen use efficiency, this conversation unpacks the science behind smarter fertilization. Improving how we set nitrogen fertilizer rates for rainfed corn is a key focus. Discover why the MRTN model matters more than ever, and how shifting mindsets and better data can boost yields and environmental outcomes. Tune in now on all major platforms!

"The nitrogen that comes from soil mineralization is the first nitrogen the plant sees, and its role is underestimated."

Meet the guest:

Dr. Emerson Nafziger is Professor Emeritus of Crop Sciences at the University of Illinois at Urbana-Champaign, with degrees in agronomy from Ohio State, Purdue, and Illinois. His research has focused on nitrogen rate strategies and crop productivity. He co-developed the Maximum Return to Nitrogen (MRTN) model, which is widely used across the Midwest. His research spans N response trials, hybrid interactions, crop rotation effects, and yield stability.