Queen's University

School of Environmental Studies
Dept. of Geological Sciences & Geological Engineering

Lab Members

Dr. David McLagan

Lab Principal Investigator


I recently returned to Canada after completing a German Science Foundation (DFG) and Natural Sciences and Engineering Research Council (NSERC) funded postdoctoral fellow at the Technical University of Braunschweig (TUBS). Preceding this, I worked as a research associate with Environment & Climate Change Canada (ECCC). I hold a PhD in Environmental Sciences from UofT. My doctoral work was supported by NSERC (CGS-D) and earned me the Governor General’s Gold Medal: the most prestigious graduate-level academic award available in Canada. I hold a Bachelor of Science (1st Class Honours) from Griffith University (Australia), where I received the University Medal for outstanding achievement.

The roots of my education, teaching, and research are in environmental sciences, an intrinsically multi-disciplinary area of science. Naturally, my research has evolved to be highly interdisciplinary; I have published studies spanning the atmosphere, biosphere, lithosphere, and hydrosphere. Central to this research is understanding the biogeochemical cycling of contaminants within and between the Earth’s “spheres” with a focus on the development of novel, yet often accessible technologies and methods to advance our scientific understanding of contaminant biogeochemistry. This relates to my philosophy of “Global Science” that encourages the dissemination of information, intersectoral collaboration, bridging of Knowledge systems, and empowers local scientists and communities across world.

Away from science, I have a wife and two kids that I love spending time with in the forest, particularly examining the fascinating world of fungi. I am a self professed coffee-snub; I think I’d rather lick my own boots than drink bad coffee. I also love listening to music (some may call it dated; I prefer vintage), cycling, swimming, football (the one played with the foot), basketball, and cricket.

 Memberships and Associations:

Biogeosciences (EGU/Copernicus Journal) – Associate Editor

International Association of Wildland Fire (IAWF)

European Geophysical Union (EGU)

Canadian Geophysical Union (CGU)

Curriculum Vitae

Excellent Eboigbe


Originally from Nigeria, I have a background in Environmental Science from the Federal University of Petroleum Resources, Effurun. I have worked in the past analyzing soil, water, and other sample types for heavy metal determination, using the AAS. I also have research experience in environmental toxicology. My favorite activity is volunteering and I currently volunteer at the Global Shapers Community – Port Harcourt Hub. In the past, I co-led the climate and environment team of the hub where I designed and implemented climate projects involving air pollution, climate education, and particularly the soot pollution in Port Harcourt. Now, I currently serve as the communications co-lead. My major interest revolves around understanding the earth and the environment and particularly as it concerns environmental pollution and environmental sustainability, my current research is focused on monitoring staple food crops grown close to ASGM sites, particularly to assess the routes and level of pollution exposure in these crops by employing the use of procedures like Hg stable isotopes, THg, and MeHg analyses. My career objective has always been to design experiments that provide critical data to understanding environmental issues and then apply those data to models that will broaden the understanding and scope of these issues to help tackle environmental pollution and sustainability issues, especially in developing nations like Nigeria. I enjoy reading, writing codes, hanging out, and learning new things.

Grant Chenier


I am thrilled to be continuing my studies at Queens University as a member of the FEWA Lab. Previously, I studied Computer Science as an undergraduate at Queen’s with a focus in computer vision and artificial intelligence culminating in the completion of a functional alarm clock/speaker controlled using only hand gestures. I am excited to be taking my interests in robotics and AI further by applying them to real world issues, more specifically issues related to the environment and climate change. I am also excited to continue to improve my knowledge base within environmental studies beyond non-required courses taken during undergraduate where the majority of courses taken were related to environmental toxicology. After graduation, I spent a year working as a Technical Sales Engineer at OneShield Software where primary responsibilities included SQL database management, UI creation and configuration and workflow functionality built out mainly in JavaScript. Finally, I have invested some time into personal projects outside of work developing an algorithm to detect the presence of fire in an image or video with a 97% success rate. The opportunity to merge these two fields is quite exciting and, I believe, is a step in the right direction to effectively manage climate and environmental situations in the future.

Outside of my studies I enjoy being outdoors, mostly participating in hikes in the summer and skiing in the winter along with a new found hobby of whitewater kayaking. For days when I am not as feeling as ambitious, I enjoy relaxing by reading or playing the guitar.

Madison Otsuki


I am an undergraduate student studying geology. I love learning about the natural systems and how different spheres interact with and influence each other. While I am not sure of the exact area I want to end up working in, I do have a keen interest in geoenvironmental fields such as cold region geology and climate change; I often wonder how we can give back more than we take.

In my free time, I enjoy learning new recipes, listening to music, going on hikes with friends, and just spending time outdoors in general! I am also part of the Queen’s varsity swimming team and get a lot of enjoyment from both the team dynamic and the competitive aspect you get from racing.

I have been involved in research with the Peter Munk Cardiac Centre at Toronto General Hospital, where I collected data within the cardiac intensive care unit to be used in various cardiological studies such as cariogenic shock, renal replacement therapy, and clonal hematopoiesis among other things. I have not yet been involved in research within the geosciences, so I am very excited for this door to be open now through the FEWA lab.

Chloe Earnshaw-Osler


Hello, my name is Chloe! I am a fourth-year student completing an undergraduate specialization in Environmental Chemistry. I was fortunate enough to receive an NSERC summer USRA award from the Queen’s University Department of Geography and Planning for the 2022 summer. I worked in Iqaluit, NU, collecting water samples alongside MSc student Lee Nguyen, and in collaboration with the Nunavut Research Institute, as part of a research project funded by Polar Knowledge Canada. My undergraduate thesis research is investigating the dissolved metal concentrations in streams and groundwater in the Niaqunguk (Apex) river watershed. The data collected will be used to interpret how the transport of metals is influenced seasonally and by land cover type.

Apart from school, I love spending time outdoors, cycling, slacklining, hiking, and camping. I have also recently become a huge fan of puzzles and baking bread (thanks quarantine). I am a part of the Queen’s Backing Action on the Climate Crisis (QBACC) exec team, and also work for the AMS service, Walkhome.