The College of Natural and Applied Sciences (COLNAS) of McPherson University, Seriki Sotayo, recently organized its 4th college seminar, titled “Mothballs: Anything to Worry About?” The event featured Dr. Ige F. Olaoye, an enzymologist, clinical biochemist, molecular, and computational biologist, as the keynote speaker. The seminar, moderated by Dr. Sunday Omeike, Acting Dean of Student Affairs, brought together College members, and researchers to discuss the potential health hazards of mothball exposure.
Dr. Omeike welcomed attendees and acknowledged the support of the university’s management, including the Vice-Chancellor, Prof. Francis Igbasan, who has continuously supported the College. He then introduced Dr. Michael Osho, Acting Dean of COLNAS, who highlighted the significance of the seminar in advancing research and knowledge sharing within the college. Following this, Dr. Olaoye was invited to the podium to deliver his lecture.
In his presentation, Dr. Olaoye explained that mothballs are small chemical balls used to repel moths and fabric pests, primarily made from naphthalene or para-dichlorobenzene. He noted that naphthalene, commonly used in Nigeria, is a toxic poly cyclic aromatic hydrocarbon (PAH) that can be absorbed through the skin, inhaled, or ingested.
Dr. Olaoye emphasized that naphthalene exposure has been linked to oxidative stress, which can lead to severe health conditions such as anemia, liver and kidney dysfunction, respiratory diseases, and cancer. He explained that naphthalene is metabolized into toxic compounds that reduce the body’s antioxidant defense, particularly glutathione (GSH), leading to cellular damage.
The speaker presented findings from his research, which involved laboratory experiments using Wistar rats to examine the effects of naphthalene exposure. The study showed significant oxidative damage in exposed rats, reinforcing concerns about mothball safety. Additionally, an in-silico analysis was conducted to study how naphthalene metabolites interact with key enzymes in the body.
During the Q&A session, participants inquired about the toxicity of mothballs and possible alternatives. Dr. Olaoye clarified that while one variant of mothballs has been banned in some countries due to its fatal effects, another variant is still in use with regulated exposure limits. He advised minimizing exposure or opting for alternatives such as para-dichlorobenzene-based mothballs or natural antioxidants found in fruits. He also distinguished mothballs from camphor, explaining that camphor is a natural substance while mothballs are synthetically produced.
Dr. Omeike summarized the lecture, stressing that although mothballs pose health risks, their side effects can be mitigated through controlled use and alternative pest control methods. He thanked Dr. Olaoye for his insightful presentation and encouraged further research on the topic. The seminar concluded with a vote of thanks from Dr. Agboola Bukola, Sub-Dean of COLNAS, who appreciated the speaker and attendees. The event was streamed online to accommodate participants who could not attend in person. The 4th edition of the COLNAS seminar was deemed a success, shedding light on mothballs and the need for safer alternative.
