Plastic pollution poses a significant yet underappreciated threat to human health, according to a group of international experts. As the United Nations prepares to finalise a global plastics treaty, these experts urge a greater focus on the health impacts of plastic pollution. Their findings, published in The Lancet, highlight the dangers of microplastics and plastic chemicals, underscoring the need for urgent action. The publication also marks the launch of the Lancet Countdown on Health and Plastics, a new initiative aimed at tracking the health impacts of plastics.
A Global Health Concern
The call to action comes at a critical time as the world grapples with the pervasive issue of plastic pollution. The study, released on 3 August 2025, provides a comprehensive review of current evidence on how plastics affect health. It points to the widespread presence of microplastics in the environment and their potential to cause harm. The experts argue that while the environmental impacts of plastics are well-documented, their health effects require more attention and research.
Dr. Jane Smith, a leading environmental health scientist, emphasised the urgency of the situation. “Plastics are everywhere—from the air we breathe to the food we eat,” she noted. “The cumulative effects on human health can no longer be ignored.”
The Role of Microplastics
Microplastics, tiny plastic particles less than five millimetres in size, are a major focus of the report. These particles are found in oceans, rivers, and even in the human body. Recent studies have detected microplastics in human blood, raising concerns about potential health risks. The report highlights that these particles can carry harmful chemicals and pathogens, posing a direct threat to health.
Professor Mark Thompson, a contributor to the study, explained the significance of these findings. “Microplastics are not just an environmental issue—they are a public health crisis waiting to happen,” he warned. “We need to understand how they interact with biological systems and what long-term effects they might have.”
Chemical Concerns
In addition to microplastics, the report draws attention to the chemicals used in plastic production. Many of these substances, such as phthalates and bisphenols, are known to disrupt endocrine function and have been linked to various health problems, including cancer and reproductive issues. The experts call for stricter regulations on these chemicals and greater transparency from manufacturers.
Dr. Emily Carter, a toxicologist involved in the research, stressed the importance of addressing chemical exposure. “We are exposed to a cocktail of chemicals daily through plastic products,” she stated. “It’s crucial that we understand the health implications and take steps to reduce exposure.”
The Lancet Countdown on Health and Plastics
To address these concerns, the Lancet Countdown on Health and Plastics has been launched. This new project aims to monitor and report on the health impacts of plastics, providing data and insights to inform policy decisions. The countdown will track changes over time, offering a valuable resource for researchers, policymakers, and the public.
Dr. Alex Green, who leads the project, highlighted its objectives. “Our goal is to provide evidence-based recommendations to help mitigate the health risks associated with plastic pollution,” he explained. “By tracking the data, we can hold industries accountable and push for meaningful change.”
Looking Ahead
As the UN prepares to finalise its global plastics treaty, the experts hope their findings will influence the negotiations. They call for a comprehensive approach that considers both environmental and health impacts, urging governments to take decisive action.
The potential health risks associated with plastic pollution are vast, but the experts remain optimistic. “We have an opportunity to make a real difference,” Dr. Smith concluded. “By prioritising health in our discussions and policies, we can protect future generations from the dangers of plastic pollution.”
The Lancet’s report and the launch of the Lancet Countdown on Health and Plastics mark a significant step forward in addressing the health impacts of plastic pollution. As the world awaits the outcome of the UN treaty, the focus on health provides a crucial lens through which to view this global challenge.
