In a remarkable journey spanning three continents, Nigerian scientist Chioma Onwuchekwa has achieved a groundbreaking feat in environmental science-chemistry. Graduating with a Ph.D. from Tennessee Technological University (TTU) in the United States, Onwuchekwa’s 11-year academic pursuit showcases a story of perseverance, passion, and excellence.
Onwuchekwa commenced her educational journey in Nigeria, earning a first-class honors degree in industrial chemistry from Covenant University in 2011. Her thirst for knowledge then led her to Scotland, where she obtained a master’s degree in energy and environmental management from Glasgow Caledonian University in 2012.
In 2015, Onwuchekwa received a teaching scholarship that propelled her to TTU, joining the research group led by Dr. Tania Datta, an associate professor of chemistry. Focused on the environmental impact of microplastics, particularly their role in transporting organic pollutants, her research addresses a critical issue highlighted by the United Nations: more than eight million tonnes of plastic end up in the oceans annually, a trend that could result in more plastic than fish by 2050.
Onwuchekwa’s groundbreaking findings revealed the threats microplastics pose to aquatic life and human health, acting as carriers for harmful chemicals. Through advanced analytical techniques such as gas chromatography-mass spectrometry and scanning electron microscopy, she identified and quantified microplastics and organic pollutants in water samples.
Her research has far-reaching implications for environmental management and policy-making, aiding in the assessment of microplastic pollution risks and the development of preventative strategies. Onwuchekwa advocates for improved waste management, recycling, regulation of plastic products, and increased public awareness.
Recognized for her contributions, Onwuchekwa received TTU’s 2020-21 Northrup Outstanding Teaching Assistant Award, becoming the first Nigerian, African, and international student to achieve this honor. She has presented her work at prestigious conferences and published extensively in reputable journals.
Facing challenges such as cultural adjustments, academic stress, and personal issues during her Ph.D. journey, Onwuchekwa overcame them with focus, support from mentors, and reliance on her faith. Her story serves as an inspiration to young Nigerians aspiring to pursue higher education, urging them to be passionate, resilient, and unwavering in the pursuit of their dreams.
Onwuchekwa’s next chapter involves applying her expertise as an environment strategy specialist for Cummins Inc., a global leader in power generation. Excited about contributing to sustainability goals, she intends to continue her research on microplastic pollution, collaborating with scientists and stakeholders.
