Before delving into our founder’s story, it’s worth addressing a common question that might arise for some readers:
“What exactly are Toxicology and Risk Assessment?”
Toxicology is a study that focuses on understanding how substances have the potential to harm living organisms (including people). The science of toxicology explores the effects of harmful substances on organisms including how they are absorbed, metabolized, distributed, and eliminated. Risk assessment integrates the science of toxicology and applies it in a systematic framework that is widely accepted by regulatory agencies for managing contaminated sites. It involves evaluating the connection between the source of contamination and potential receptors, such as humans or ecological receptors, and assessing their potential exposure to contaminants. This approach assumes that if there is a pathway for exposure, there is a likelihood of health risks. However, the presence of all the components does not necessarily mean there are health risks; instead, it indicates the potential for them. Risk assessment has now become a global standard practice, with many countries incorporating it into their regulations and guidelines for managing contaminated sites.
Our Founder Story
Theresa Repaso-Subang started her career in toxicology and environmental risk assessment in 1990 when she joined a Canadian firm based in Ontario. At that time, risk assessment as a tool to support environmental projects faced limited acceptance in Canada. These approaches were already well-established in various regions of the United States under their federal regulatory programs such as the Superfund program and the Resource Conservation and Recovery Act. Eventually, Canada adopted the use of environmental risk assessment in the late 1990s, with many provinces adopting the federal process. This article reflects on Theresa’s journey as an environmental practitioner, applying her background in toxicology, chemistry, and risk assessment to assess environmental impacts and contribute to decision-making processes.
Early Experiences and Development:
In her early career, Theresa found excitement in applying her educational background to develop fate and transport models, along with exposure models, to assess the environmental impacts of various sites. Collaborating with a diverse team of practitioners, she contributed to the development of strategies and approaches to inform decisions regarding the management and remediation of contaminated sites. After a decade of working on projects in United States under different regulatory programs and evaluating a range of contaminants, Theresa transitioned to a senior role focused on environmental projects in Canada. This opportunity allowed her to work with federal regulatory agencies (including Health Canada, Environment and Climate Change Canada, Canadian Nuclear Safety Commission, and Canadian Energy Regulator) and provincial regulators across Canada including the Ontario Ministry of Environment, Conservation & Parks. She made significant contributions to the development of environmental standards and guidelines while providing ongoing technical expertise.
Professional Growth and Leadership:
To enhance her professional standing, Theresa obtained accreditation with the American Board of Toxicology in 2004, followed by becoming a European Registered Toxicologist in 2015. These accomplishments showcased the progression of her experience and expertise. As her career advanced, she embraced management roles, providing technical and business development leadership. This involved expanding the risk assessment service offerings and building a team to strengthen capacity and expertise within the field.
The Launch of TRS Toxicology & Health Solutions Inc.:
In April 2022, Theresa embarked on a new and exciting chapter of her career by founding TRS Toxicology & Health Solutions Inc. As the company’s founder and president, she has the privilege of shaping the company’s vision and goals. With over three decades of experience in the environmental sector, Theresa has witnessed the dynamic evolution of the industry. As the field of environmental science continues to progress, she remains committed to ongoing learning and actively contributing to the industry. Collaborating with colleagues has been a source of fulfillment and providing clients with effective solutions to safeguard human and environmental health while transforming contaminated sites into safe and functional spaces has been a particularly rewarding aspect of her work.
TRS is an acronym for Toxicology, Risk-Based Solutions, which also represents Theresa Repaso-Subang’s initials. As the founder, Theresa assumes multiple roles within the venture, being involved in both the technical aspects of the work and the reporting processes, ensuring that TRS delivers high-quality toxicology and risk assessment services.
Being #WomenInStem and #WomenEntrepreneurs
TRS takes pride in being woman-owned and recognizes the power of women. “Founding a business has empowered me to actively participate in entrepreneurship, leadership, and contribute to increased gender diversity and representation in the environmental sector,” said Theresa in our interview. As an entrepreneur, Theresa is proud to provide other women with opportunities to break through traditional barriers and, more importantly, to align with TRS’ values and mission: fostering a sense of community, collaboration, and support among women entrepreneurs. “I can contribute by creating networks and forums that facilitate the sharing of experiences, advice, and opportunities, thereby fostering economic growth through job creation, revenue generation, and stimulating local economies. More importantly, I can make a positive social impact by addressing gender-based inequalities, promoting inclusivity, and serving as a role model for future generations of women.” These are some of the values Theresa holds while running her business.
A Message for Young Women in STEM:
“I am a testament that a woman can successfully have both family and a career.”
Young women today are assertive, confident, and ambitious in pursuing their career goals. I am so proud of the inspiring young women that I have met through hashtag#WBE (Women Business Enterprises Canada). However, if I have any message to impart to young women it is that you need to have a profound self-awareness – identify your passions, priorities, and limitations. Embrace a purpose-driven life that connects you to what you truly hold valuable as this will ground you with a personal mission to overcome challenges and navigate your life’s journey successfully. Build a support network of family, friends, and colleagues from the early stages of your career. Connect with STEM organizations, take on leadership roles in university, and identify female STEM role models to mentor you.