Air pollution is considered one of the greatest public health challenges of our time, and according to Oluwatosin Tolulope Ajidahun, its impacts go far beyond respiratory and cardiovascular diseases. Recent studies have shown that continuous exposure to environmental pollutants can significantly affect both male and female fertility, interfering with reproductive processes and hindering natural conception.
Air Pollution and Reproductive Health
Various studies indicate that the presence of fine particulate matter, such as PM2.5, is associated with reduced gamete quality. In women, evidence suggests that pollution may lower ovarian reserve and impair endometrial receptivity. In men, it is directly linked to decreased sperm count and reduced motility. These effects show how environmental health is closely connected to human reproductive balance.
Tosyn Lopes emphasizes that another key point is the ability of pollutants to act as endocrine disruptors, altering the hormonal system. When essential hormones for ovulation or spermatogenesis are disrupted, fertility is directly impacted. This highlights the need to consider environmental factors when investigating causes of infertility.

Effects of Pollution on Male Fertility
Men exposed to high levels of air pollution are at greater risk of sperm DNA fragmentation, which can compromise fertilization and increase the likelihood of embryo implantation failure. Furthermore, Tosyn Lopes notes that toxic substances found in urban environments—such as heavy metals and harmful gases—have the potential to interfere with male hormone production, lowering testosterone levels and impairing sperm production.
These changes often go unnoticed due to the absence of immediate symptoms, making the issue silent and difficult to detect. Only specialized lab tests can reveal the true impact of pollution on male fertility, which reinforces the importance of regular medical checkups.
Consequences of Pollution on Female Fertility
In women, continuous exposure to pollutants can harm egg quality, interfere with follicular development, and even increase the risk of endometriosis. Recent studies also indicate that high pollution levels are associated with irregular menstrual cycles and greater difficulty with embryo implantation. In this context, Oluwatosin Tolulope Ajidahun highlights that pollution may be a decisive factor for couples struggling to conceive, even when there is no apparent clinical history of infertility.
Additionally, pregnancy may also be affected: pollution is linked to higher risks of miscarriage, preterm birth, and low birth weight. This shows that environmental impacts extend beyond conception and influence the entire reproductive process.
Prevention and Protection Strategies
Although complete elimination of pollution exposure is not feasible, some measures can help reduce its harmful effects. Using air purifiers indoors, choosing to exercise away from busy roads, and adopting a healthy lifestyle all contribute to minimizing risks. Moreover, Tosyn Lopes stresses that regular visits with reproductive health specialists are essential for identifying possible environmental impacts on fertility and guiding personalized care plans.
Public policies aimed at reducing pollutant emissions are also a critical part of the solution. The reproductive health of the population is directly tied to environmental quality, and collective awareness plays a vital role in this process.
A New Perspective on Fertility and the Environment
Understanding that air pollution affects fertility expands the dialogue on today’s reproductive challenges. Caring for the environment thus becomes an indirect, yet highly effective, way to protect the reproductive health of both men and women. Oluwatosin Tolulope Ajidahun emphasizes that integrating environmental factors into clinical investigations allows reproductive medicine to offer more comprehensive diagnoses and more effective treatments.
This new perspective reinforces that fertility is not determined solely by individual biological factors, but also by the environment in which we live. Recognizing this connection is the first step toward promoting both environmental preservation and the healthy continuation of future generations.
Author: Vania Quimmer
The images shared in this post were provided by Oluwatosin Tolulope Ajidahun, who holds legal responsibility for authorizing the use of all individuals’ images depicted herein.